lICHIGAN TATEL LN YYYYYYYYYYY III II IIIIIIIIIIIIIIIIIIII 3 1293 10598 1116 9—2!" 1V1531.1 RETURNING MATERIALS: Place in book drop to LJBRARJES remove this checkout from “ your record. FINES W111 be charged if book is returned after the date stamped below. ,/ ‘ A 4.1%»4438 $1 ." (I ; _. FEBll 2000 6m him 2 1 32005 CONSTRUCTION MANAGEMENT PLANNING: THE IMPACT ON MEETING OWNER GOALS BY David Allan Boothe A THESIS Submitted to Michigan State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Department of Agricultural Engineering 1984 ABSTRACT CONSTRUCTION MANAGEMENT PLANNING: THE IMPACT ON MEETING OWNER GOALS BY David Allan Boothe This study investigated the impact which planning, done by a Construction Management (CM) firm during the precon- struction phase of a CM contract, had on the effectiveness with which the firm met owner goals. The relative impact of selected organizational and environmental characteristics on the CM firm's ability to meet owner goals was also investi- gated. The study was conducted through the use of a question- naire mailed to 92«companies, in Michigan, who advertised that they provided CM services. The responses were analyzed by frequency to describe the typical company and through the use of Pearson's product-moment correlations and partial correlations to ascertain the strength of linear relation- ships between selected planning, organizational, and envi- ronmental characteristics and measures of effectiveness. The study results indicated that some aspects of plan- ning affected the ability of the CM company to meet owner goals, although they followed no clear pattern. As measured by this study, the CM company‘s effectiveness was more a David Allan Boothe result of an interaction of organizational and environmental characteristics rather than the clear cut action of any planning characteristic investigated. @Wan. 5&5/ 53 Chairman, Agricultural'Engineering Department I . ' m . '1 ‘ 4 ,1 ”33*? My Major/Professor DEDICATED TO HOWARD PAYNE BOOTHE AND ERNESTINE EATON BOOTHE WHO ORIGINALLY MADE IT POSSIBLE AND TO JANET LIVESAY BOOTHE AND SHANNON MCKINZIE BOOTHE WHO NOT ONLY MADE IT POSSIBLE BUT ALSO MAKE IT WORTHWHILE ii ACKNOWLEDGMENTS I would like to thank Tim Mrozowski, Dr. Merle L. Esmay, and Dr. Mary Van Sell for the support they provided, both philosophically and material ly, during the period of this research. My special thanks go to Dr. Mary Van Sell for her assistance and guidance through the written laby- rinth within these pages. I would also like to thank the U.S. Army Corps of Engineers for providing the opportunity, and the time, for me to further my education at Michigan State University and LTC Conner and the other members of the ROTC Detachment for their support and assistance. To those individuals in the construction industry who took the time and effort to respond to my questonnaire-- thanks! iii TABLE OF CONTENTS LIST OF TABLES O O O O O O O O O O O O O O O O O O O LIST OF FIGURES O O O O O O O O O O O O O O O O O O CHAPTER 1: INTRODUCTION Overview . . . . . . . . . . Importance of the Construction Industry in the United States . . . . . . . . . . . . Definition of Construction Management . . . The Importance of CM to the Construction Effort Statement of the Problem . . . . . . . . . . . summary O O O O O O O O O O O O O O O O O O O O CHAPTER 2: REVIEW OF LITERATURE Overview 000 0000. CM Company Effectiveness . . . . . . . . . . . Dimensions of Effectiveness . . . . . . . Management By Objectives . . . . . . . . . Organizational Design . . . . . . . . . . . . Organizational Characteristics Related to Effectiveness . . . . . . . . . . . . . . . Experience . . . . . . . . . . . . . . . . Organizational Size . . . . . . . . . . . Information . . . . . . . . . . . . . . . Hypotheses O O O O O O O O O O O O O O O O Environmental Characteristic cs Related To EffeCt lveness O O O O O O O O O O O O O O O PIC]. eCt 8126 O O O O O O O O O O O O O O O Contracting Sequence . . . . . . . . . . . Network Scheduling . . . . . . . . . . . . Hypotheses O O O O O O O O O O O O O O O O Planning Characteristics Related To EfoCt iveness O O O O O O O O O O O O O O O Value Engineering . . . . . . . . . . . . Computerized Estimating . . . . . . . . . Risk Anal-Y8 18 O O O O O O O O O O O O O O PrOposal of Construction and Design Alternatives O O O O O O O O O O O O O Team Approach . . . . . . . . . . . . . . Hypotheses O O O O O O O O O O O O O O O O summary O O O O O O O O O O O O O O O O O O O O iv xii CHAPTER 3: METHOD overvj-ew O O O O O O O O O O O O O O sample O O O O O O O O O O O O O O Descriptive Measures . . . Organizational Characteristics . Environment of the CM Project . Preconstruction Planning Techniques Experience of the Company in Meeting Owner Goals . . . . . . . . . . The Questionnaire . . . . . Survey Distribution and Follow-Up . Statistical Procedures . . . One Way Frequency Distribution Pearson Correlation . . . . . Partial Correlation . . . . . summary O O O O O O O O O O O O O O CHAPTER 4: RESULTS overview O O O O O O O O O O O O O O O Survey Response . . . . . Descr ption of the Typical Company . . Organizational Characteristics . . Environmental Characteristics . . Planning Characteristics . . . . . Experience of the Company in Meet in Owner Goals . . . . . . . Organizational Characteristics Relatedt Planning O O O O O O O O O O Experience . . . . . . . Organizational Size . . . Information . . . . . . . Organizational Form . Organizational Characteristics Related to oeoonerooooo Environmental Characteristics of the Job Experience O O O O O O O O O O O O Organizational Size . . . . . . Information . . . . . . . . . . Organizational Form . . . Environmental Characteristics Related Planning Characteristics . . . . . PIOjeCt Size O O O O O O O O O O Contracting Sequence . . . . . . Private Owners . . . . Network Based Scheduling Systems Measures of Effectiveness (Interrelati Simple Hypotheses . . . . . . . . . . Hypothesis No. Hypothesis No. Hypothesis No. n eoooOooooofl‘eo eooemooooe UNH V oooeH-eeoee Simple Hypotheses (Cont. Hypothesis No. 4 Hypothesis No. 5 Hypothesis No. 6 Hypothesis No. 7 Hypothesis No. 8 Hypothesis No. 10 Hypothesis No. 11 Hypothesis No. 12 Results of Partial Correlation . . . Relationship of Organizational Characte - istics to Meeting Owner Goals . . . Final Cost Equal To or Less Than Owner's Original Budget . . . . Final Cost Equal To or Less Than Final Pre-Bid Estimate . . . . . . . Job Completed On or Before Owner's Original Date . . . . . . . . . . . Job Completed On or Before Date Set During Preconstruction Planning . . Relationship of Planning Characteristics to Meeting Owner Goals . . . . . . . . Final Cost Equal To or Less Than Owner' s Original Budget . . . . . . Final Cost Equal To or Less Than Final Pre-Bid Eatimate e e e e e o 0 Jobs Completed On or Before Owner's Original Date . . . . . . . Jobs Completed By Date Set During Preconstruction Planning . . . . . Other Organizational and Planning Charac- teristics Related to Meeting Owner Goals summary O O O O O O O O O O O O O O O O O O O O O mecca ) 5 O O r CHAPTER 5: DISCUSSION AND CONCLUSIONS Overview . . . . . . . . Limitations . . . . . . . Sample Size . . . . Restricted Sample . Small Standard Deviations Unuseable Responses . . . Organizational Characteristics R Planning Characteristics . Experience a e e e e 0 Discussion . . . Conclusions . . . Organizational Size . 1 t Discussion . . Conclusions . . oeeoeeemeeoeoe eeeoeeefleooooe ooeeooocboeoeoe On ff 00000000000000 vi Information . . . . . Discussion . . . Conclusions . . . Organizational Form . Discussion . . . Conclusions . . . . General Conclusions: Organizational Character istics Related to Planning Characteristics . Organizational Characteristics Related to Environmental Characteristics . . Experience . . . . . . . . Discussion . . Conclusions . . Organizational Size Discussion . Conclusions . Information . . . Discussion . Conclusions . Organizational Form . General Conclusions: Organizational Characteristics Related to Environmental Characteristics . . . . . . . . . . Environmental Characteristics Related to Planning Characteristics . . O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O‘ O O O O O O O O O O O O O O Value of Smallest Project . . . . . . . . . Discussj-Ofl O O O O O O O O O O O O O O Conclusions . . . . . . . . . . . . Value of Largest Projects . . . . . . . . . Discussion . . . . . . . . . . . . . . conCIUSi-ons O O O O O O O O O O O O Network Based Scheduling Systems Required By owner O O O O O O O O O O O O O O O O Discussion . . . . . . . . . . . . . . conCIus1on8 O O O O O O O O O O O O O O Hiring Sequence . . . . . . . . . . . . . . Discussion . . . . . . . . . . . . . . conCIusj-ons O O O O O O O O O O O O O O Private Owners . . . . . . . . . . . . . . . Discussion . . . . . . . . . . . . . . Conclusions . . . . . . . . General Conclusions: Environmental Characteristics Related to Planning Characteristics . . . ... . . . . . . . . Measures of Effectiveness (Interrelationships): Discussion . . . . . . . . . . . . . . . . . Hypotheses . . . . . Hypothesis No. 1 . Discussion . Conclusions . vii 106 106 107 113 113 113 113 114 114 115 115 115 116 116 116 117 117 118 118 118 121 121 121 Hypothesis No. 2 . Discussion . Conclusions . Hypothesis No. 3 . Discussion . Conclusions . Hypothesis No. 4 . Discussion/Con Hypothesis No. 5 . Discussion . Conclusions . & o l s o Hypothesis No. 6 Discussion Conclusions Hypothesis No. 7 Discussion Conclusions Hypothesis No. 8 Discussion/C n Hypothesis No. 10 Discussion . Conclusions . Hypothesis No. 11 Discussion . Conclusions . Hypothesis No. 12 . Discussion/Conclusions Partial Correlation . . . . Organizational Characteristics Meeting Owner Goals . . . . . . . Final Cost Equal To or Less Than Owner' s Original Budget (CSTOWNBG) Discussion . . . . . . . . . . . Conclusions . . . . . . . . . . Final Cost Equal To or Less Than Final Pre-Bid Estimate (CSTPREBD) Discussion . . . . . . . . . . . Conclusion . . . . . . . . . . Job Completed On or Before Owners OriginalDate eeeeeeoeoo Discussion O O O O O O O O O O O Conclusions . . . Jobs Completed On or Before Date Set During Preconstruction Planning . Discussion . . . . . . . . . . . Conclusion . . . . . . . . . Planning Characteristics Related to Meeting Owner Goals . . . . . . Final Cost Equal To or Less Than Owner's Original Budget . . . . . Discussion . . . . . . . . . . . Conclusions . . . . . . . . viii l s o eoeeeoSeeeoeooeeefieeeoeeo eoeeeol-I-eeeeeeooeoHooeeeoeo 00000030000000...fleece... é 5 C "O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O I-loeeooooooe0.0000000000000000 emoeoeoeoooooooooooooeoooooooo fl we.eoeoeeoe0.0000000000000000 O O ”O O O O O O O O O O O O O O O O O O O O O O O O O O O O 131 131 131 132 132 134 134 134 135 136 136 135 137 Final Cost Equal To or Less Than Final Pre-Bid Estimate . Discussion . . Conclusions . Jobs Completed On or Before Owner' Original Date . Discussion . . Conclusions . Jobs Completed On or Before Date Set During Preconstruction Discussion . . Conclusions Discussion Summary . . . . Simple Correlations . Simple Hypotheses . . Partial Correlations . . Organizational Characteristics Re Planning to Meeting Owner Goals . . Planning Characteristics Related Meeting Owner Goals Study Synopsis . . . . . . . . . . . Recommendations for Future Research summary O O O O O O O O O O O BIBLIOGRAPHY O O O O O O O O O O O APPENDICES t to A. List of Construction Management Contractors . B. Survey Instrument . . . C. Statistical Definitions and Formulas Used to Analyze Data . . . . . . D. Key to Variables . . . . E. Frequency Histograms . . F. Pearson Correlation Matrix ix 138 138 138 139 139 140 140 140 142 142 142 144 147 147 149 149 151 153 154 159 167 175 177 180 191 Table 4.1 4.2 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 5.1 5.2 LIST OF TABLES Company Characteristics: Means, Standard Deviations (S.D.). and Ranges . . . . . . . . . Environmental Characteristics: Means. Standard Deviations (S.D.), and Ranges . . . . . . . . . Planning Characteristics: Means, Standard Deviations (S.D.). and Ranges . . . . . . . . . Measures of Effectiveness: Means, Standard Deviations (S.D), and Ranges . . . . . . . . . Correlation Coefficients of Organizational Characteristics Related to Planning Characteristics . . . . . . . . . . . . . . . . Correlation Coefficients of Organizational Characteristics Related to Environmental Characteristics . . . . . . . . . . . . . . . . Correlation Coefficients of Environmental Characteristics Related to Planning Characteristics O O O O O O O O O O O O O O O O Correlation Coefficients Between Dependent var 1ab1e8 O O O O O O O O O O O O O O O O O O O Correlation Coefficients of Simple Hypotheses Characteristics Related to CM Effectivenss . . Organizational Characteristics Related to Measures of Effectiveness: Correlation Coefficients and t-Tests . . . . . . . . . . . Planning Characteristics Related to Measures of Effectiveness: Correlation Coefficients and t- Tests O O O O O O O O O O O O O O O O O O O O O Measures of Effectiveness: Means. Standard Deviations (S.D.). and Ranges . . . . . . . . . Variance (r2) Explained By Relationship of Dependent Variables . . . . . . . . . . . . . . Page 63 66 67 69 72 76 79 82 84 89 93 101 119 Table . Page 5.3 Summary of Organizational Characteristics Related to Planning Characteristics . . . . . . 143 5.4 Summary of Organizational Characteristics Related to Environmental Characteristics . . . 145 5.5 Summary of Environmental Characteristics Related to Environmental Characteristics . . . 146 5.6 Planning Characteristics Whose Relationship to Meeting Owner's Goals was Affected by Organizational and/or Environmental Characteristics . . . . . . . . . . . . . . . . 150 F.1 Pearson Correlation Matrix .. . .. . .... . 191 xi Figure 1.1 1.2 1.3 1.4 2.1 2.2 2.3 2.4 E.1 LIST OF FIGURES General Comparison Between Traditional General Contracting and Construction Management . . . . Construction Management versus General contraCting O O O O O O O O O O O O O O O O O O CM Preconstruction Services . . . . . . . . . . CM Construction Services . . . . . . . . . . . Example of Military--or Line-Type Organization Example of Line and Staff Organization . . . . Management Process . . . . . . . . . . . . . . Performance of Formal and Informal Planners During the Planning Period . . . . . . . . . . Summary of Working Hypotheses . . . . . . . . . Partial Correlation Procedure . . . . . . . . . Organizational Characteristics Whose Relationship to Meeting Owner‘s Goals was Affected By Planning . . . . . . . . . . . . . Frequency Histograms . . . . . . . . . . . . . xii Page 10 28 39 41 48 58 148 180 CHAPTER 1 INTRODUCTION mm This chapter provides a sampling of several of the current meanings of Construction Management (CM) and formu- lates the working definition for this study. It also points out.how CM can.be of benefit to the construction industry. In addition, the chapter will provide a statement of the re- search problem addressed by this study. W W Thelconstruction industry predates even the earliest historical records. and has been an important part of civil- izations in every part of the world. In the United States construction is a major industry. According to U.S. govern- ment statistics. construction accounted for approximately 10% of the Gross National Product (GNP) between 1947 and 1975. Since 1975 this share has fallen to about 6% (Busi- ness Roundtable, 1983). The dollar amount used in the government's figure for put-in-place construction may be understated by as much as 25% (BusinessiRoundtableq 1983). This is due. the Business Roundtable found. to two main reasons. First. the government defines “construction" in an 2 outdated and inconsistent way in gathering the figures for the value of construction put-in-place. Second, the govern- ment data-gathering procedures do not collect all the infor- mation they are intended to collect. If this understatement is true this would mean that the true value of construction put-in-place in 1979 was about $300 billion, rather than the figure of $229 billion reported by the government. Construction is the single largest production activity of the American economy in terms of dollar value produced (Clough and Sears, 1979). If, as Clough and Sears, 1979, estimate the annual total construction expenditure is equal to approximately 12% of the GNP, then one of every eight dollars spent in this country for goods and services is a construction dollar. If, additionally, production, trans- portation, and distribution of construction materials is taken into account, then about 15% of the total employment in the United States is‘directly’or indirectly created by the construction industry (Clough and Sears, 1979). The construction industry, therefore, has an important impact on the economy of the people in the United States. The efficiency with which construction projects are accom- plished, and the cost and quality of the resulting construc- tion, affect not only the economy but also the quality of peoples livesm For this reason, techniques such as Con- struction Management (CM) that hold the promise of improving efficiency have become increasingly common in the construc- tion industry. 3 W The Associated General Contractors of America (AGC) define Construction Management as a method of contracting for project delivery. This method has as a central concept the use of a Construction Manager, who, as a member of the construction team composed of the Owner, the Architect-Engi- neer (A-E), and other consultants as needed, coordinates and manages the building process.1 The primary emphasis is on overseeing and integrating the design and construction phases of a project. The AGC definition of a CM (Construction Manager) says that the CM will use his/her skill and knowledge of general contracting to developrschedules: prepare project estimates: analyze alternative designs: study labor conditions: advise on construction techniques: perform value engineering; and coordinate and communicate the activities of the team, both during the design and construction phase (The Associated General Contractors of America, 1982). The American Society of Civil Engineers defines a Pro- fessional Construction Manager as a firm or organization specializing in the practice of Construction Management. The CM should provide, as part of a management team consist- ing of the owner, a design organization, and CM, the 1In the remainder of this paper the terms Construction Management and Construction Manager will be used inter- changeably and will be abbreviated by CM. Strictly speak- ing, the term Construction Management refers to a method of contracting while Construction Manager refers to the firm, but CM is used to represent either in the literature. 4 following services, or whatever portion is required: 1) By working with the owner and‘design organization from the beginning of design through completion, he/she provides leadership on all construction matters. This in- cludes keeping the project management team informed, and, in the case of design improvements, construction technology, schedules, and(construction.economies, making recommenda- tions. 2) During the planning phase he/she suggests construc- tion and design alternatives and analyzes their effect on project cost and schedules. 3) The CM tracks the development of the project to ensure that project budgets, schedules, and quality require- ments are not exceeded or sacrificed without the owner's knowledge. 4) He/She coordinates the work of all construction contractors and advises on and‘coordinates procurement of equipment and material. 5) The CM may monitor claims, changes, payments to contractors, and inspection for conformance to‘design re- quirements. He/She also provides current cost and progress information. The ASCE definition also states that the CM does not usually perform significant design or construction work with his/her own forces. This is in keeping with the non- adversary relationship of the team members (ASCE, 1976). 5 According to Goldhaber, Jha, and Macedo (1977) CM is basically'a systems approach to construction. This approach saves time because of the efficient phasing between the decision, design, and construction activities. As shown in Figure 1.1, the overlapping of the stages in the construc- tion process--i.e., final schematic design with design de- velopment, design development with construction documents, design development with construction documents with bid, construction documents with bid, and bid with construction, in the CM approach theoretically provides a saving of time when compared with the sequential approach used by the traditional general contractor. This type of approach also realizes cost savings through design alternatives, value analysis, and package bidding, which encourages competition between subcontractors. ‘Cost monitoring and cost control systems are also important factors in this definition. Adrian (1981) indicated that CM was a process where a potential owner engages an agent (CM) to coordinate and communicate the entire building process. The emphasis is on minimizing the time and cost of the project through in- creased efficiency in coordination procedures while still maintaining the desired project quality. Figure 1.2 illus- trates the conceptual differences between the CM as an agent of the owner and the traditional general contractor rela- tionship. Adrian (1981) also noted that the most distin- guishing characteristic of the CM process is the involvement ma .m.. . . no» 302 .mcom can aoawz cachv .mmowuomum can mud wocwum .ucmEm can: cowuoauumcoo ..U amass: .ocoomz can muccmno .mnn can amacmum .umnsscaoo "wouaom .ucmEmmmcmE cofiuosuumcoo can mcwuocuucoo Hmumcmm Hocofluacmuu consumn nonwummaoo Hmumcmu H.H ounmwm >950:qu l a, . co..u:...cou . I . . -" «<5 in?! 2...») P289600 >1 ‘ k I 3:92.230 (1. 3:23 a «2.2.3 2.2.8.98 8.8.. a 0 5.8.1.. 3.8588 838 I 3.2.33 w .. a. so u. m m. a 4”. .II M W M E Ih.Q MbwmmH».mm:wmuw> .coummm .hcmmsoo mcazmwanflm saunas. .mnaooum unmaommcmz Goduozuuncoo use «:0 ..n meson .co«uv< ”mouaom mcauonuusou Hmuwcoo msmuo> usmsomnsu: coduoauunsoo ~.H ousmdh Ewan :30 o» . waaumfiwum anon can mafia can house 0» >uauosa Hesse on >uaamao nuo>daoo can .umou .mEfia mum>wamo cmwmoa nevus acmao>ao>cu usonoaousa usmfim>ao>sn nousoacseaou nuosuunsou nmuscwcu uouomuusoo unoccemmcsn Auoszo new nuomv acoa< «wouomuucoo Hmuocoo «nuance: ceauoauuncoo Fuouomuucou —mouoenucoo uouonuusoo_ mmmuonuucom_ qmoaosuusoo uouomuucoo 1.5 1.2m - .86 F _ - _ _ 1— - — n . uouomuucoo Illll#uo:mdnmni flamenco u use: , noduosuuncoo uosmwnma_ A gouache Abounoum mcauomuucou Hmumcoo " so 8 of a single firm through the.entire project: feasibility, design, contract letting, construction and implementation. CM contracts are professional service contracts and are normally negotiated between the owner and CM. A basic fixed-fee, normally ranging from 2 to 5% of the estimated construction cost is agreed on for total compensation for all preconstruction and construction phase services (Goldhaber et a1., 1977). George J. Heery, writing in The-MLIW (1974), said that when a firm represents the owner in all construction management activities, CM includes all the management activities that are related to a construction program.and carried out during thejpre-designw design, and construction phases of a project. Foxhall (1972) stated that CM is a firm that applies know-how of construction techniques, conditions, and costs to the three phases of construction: decision, design, and delivery. A concept central to all published definitions of CM is that the process is divided into two distinct phases and that each phase has some functions, offered by the CM firm, which are limited to only one phase while some functions overlap both phases. The preconstruction phase could re- quire some or all of those functions listed in Figure 1.3 while the construction phase could require some or all of those functions listed in Figure 1.4. As was noted above, all functions in both phases, may or may not be required. Owner-Needs Identification Study Project Feasibility Study Tax Analysis of Project Marketing Research for Proposed Project Assistance in Obtaining Financing Assistance in Obtaining Permits 5 Zoning Budgeting Value Engineering Paramenter Estimating Scheduling of Design & Pre-Construction Identification of Long-Lead Items Bid Packaging Awarding Contracts Setting Out Operating Procedures & Responsibilities Process Paper Work Figure 1. 3 Source: CM Preconstruction Services Adrian, James J., CM: The Construction Management Process, (fiEston Publishing Company, Reston, Virginia, 1981), p. 47 10 Detailed Planning 8 Scheduling Construction Phase Estimating Operating Procedures Supervision Inspection Testing Materials Handling Paper WOrk Handling Change Orders Cost 8 Time Control System Process Contractor Payments Testing the Completed Project Marketing the Project Property Management Figure 1.4 Source: CM Construction Services Adrian, James J., CM: The_§9nstruction Management Process, (Reston Publishing Company,§3ston, Virginia, 1981), p. 55 11 The choice of which functions to include is a product of the owner's‘desires, the type and size of the project, and, of course, the contract. A distillation of these definitions and explanations of Construction Management leaves the essentials of a firm, strong on management ability and practical construction knowledge, which is involved with a project from conceptual- ization to turnover of the completed project. CM is a team concept which consists of, as a minimum, the CM, the owner, and the design professional (A-E). Although the CM process may be used to implement phased construction, the overlapping of construction stages, there is not an irrevocable link between the two. The fact that a .project is being constructed utilizing the CM method does not also mean that the project is being constructed utiliz- ing phased construction. WW According to the Business Roundtable (1983) the United States is no longer getting its moneys worth from the con- struction industry. They cited a Commerce Department report that productivity in put-in-place new construction had dropped from an index number of 100 in 1972 to an index number of 82.9 in 1979, a drop of nearly 20%. The Business Roundtable further pointed out that this erosion of con- struction efficiency and productivity had a disastrous ef- fect on the economy since the price of every new piece of 12 real property that is built directly affects the price for goods and services produced in it. The Business Roundtable believed that fragmentation is the one reason that the construction industry is relatively inefficient. It is a $300 billion a year business which has been activity involving almost one million contractors and a similarly large number of owners and architects. These large numbers offer almost endless permutations, with the chances fof litigation equally large. M. R. Lefkoe (1970) wrote that contractors should view their function as making it as easy as possible for poten- tial customers to obtain the value satisfaction that their structure would ultimately provide, rather than viewing the activity as merely putting up a structure. He thought that those contractors who accepted this new definition of con- struction would have to assume increased responsibilities for the entire construction process. Adrian (1981) cited two reasons for the growth of CM: one, the failure of tradi- tional construction methods to attain the owner's time, cost, and quality objectives, and two, the compatibility of the CM process with increased project complexity. The Busi- ness Roundtable (1983) indicated that opportunities to shorten the project time and cut project costs are often passed by because the traditional construction process iso- lates financial planning, design, and scheduling from that of the actual construction. 13 A study conducted by Parvis F. Rad and Marion C. Miller (1978) found that from 1971 to 1976 the percentage of all contractor and design firms offering CM services increased 9%. They also found that, among contractor firms, the increase»in the percentage of firms providing CM services was predominantly among the largest firms. Lindstrom (1982) citing from construction statistics in W Construction noted that Construction Managers boosted their commercial, industrial, and institutional (CII)*volume by 27.3% in 1981 as compared to only a 12% growth overall from CII volume. CM was the area of greatest growth. In their search for methods to increase efficiency, and therefore their company's profits, construction companies were appar- ently turning to CM in large numbers. The CM process has evolved from its beginning in the late 1960\3 as a method to integrate, under a continuity of management, all the phases of construction: conceptual planning, schematic design, design development, contract documents, bidding, and actual construction. This conti- nuity of management, coupled with the presence of construc- tion expertise early in the design phase, is the construc- tion industry's response to the challenge of many critics to enter the latter part of the twentieth century and employ modern management techniques. Although much has been written about the growth of CM, what it is, and how to implement it, the available litera- ture is deficient in studies or articles pertaining to a 14 question central to the CM process. That is, are the compa- nies who provide CM services any better off than those who do not? Logical extensions to this question, which appear to be lacking in the literature, are investigations into the specific planning techniques CM firms use and if their activities have any impact on the effectiveness with which projects are completed. This question is central to the purposes of this thesis. SithflflfltJflLihfiJflfihLfln This study is directed at the preconstruction phase of CM. More specifically, the study will attempt to determine the effect of planning, during the preconstruction phase, on the effectiveness of the CM firm. The investigation is directed towards determining the relative impact of the planning techniques, which a CM company uses during the preconstruction phase, on the effec- tiveness of the company and consequently on its profitabili- ty. Also the relative impacts of both selected organiza- tional characteristics and the type of CM projects a company undertakes on the effectiveness of the company will be investigated., The key word in this is 'relative.‘ That is, how does the impact of the planning done in the preconstruction phase relate/to the organizational characteristics or project type. Is the impact of any of these three, or some 15 combination, more important to the efficiency of the CM company than any other, either singularly or in combination? W The construction industry, including its many ancillary industries, has always been an important part of the economy of the United States. According to government statistics it now accounts for 6% of the GNP although some sources feel that this is understating its importance. The definitions of CM are as varied as the companies who engage in it or the individuals who write about it. Several professional organizations, including the ASCE and the AGC, have published definitions and guidelines in an attempt to arrive at a common meaning of the term "Construc- tion Management.“ CM is one of several methods by which the construction industry has attempted to meet public criticism of industry inefficiency and charges of poor management. Failure of traditional contracting methods to attain the owner's time, cost, and quality objectives plus the increased complexity of present day construction projects have been the major factors in the apparent growth of CM. This study, directed at planning in the preconstruction phase of CM, is an investigation of the relative impact of the planning techniques used on the ability of a CM company to meet an owner's requirements. CHAPTER 2 REVIEW OF LITERATURE Quaint This chapter provides a recapitulation of the litera- ture.concerning the central question of this paper. That is the extent to which characteristics of the CM company, characteristics of the CM project or the project environ- ment, and the planning used by the CM company during the preconstruction phase of a project all.have an impact on the effectiveness of the CM company in meeting the requirements of an owner. The review is a combination of literature from the construction industry and from organizational behavior in the field of business management. In conclusion, the hypotheses drawn from this literature are presented. WW Goldhaber, et a1. (1977) stated that the major concern of the construction industry is to erect quality buildings on schedule and within the owner's budget. They felt that the best method of combining the diverse activities of a construction project into an integrated whole is a systems approach. This approach is a process that generates a completely integrated system that is intended to accomplish one or more objectives. In the case of a construction 16 17 project that objective is a quality building, on time and within budget. They argued that CM is the system approach applied to the construction industry. The Construction Industry Cost Effectiveness Project (Business Roundtable, 1983) recommendations, made after studying over 125 different organizations and companies, for increasing the cost effectiveness of the construction indus- try mainly involved ways to manage construction projects more effectively. They found that more than half the time wasted during construction was attributable to poor manage- ment, that is the lack of efficient management. Hofer and Schendel (1978) made a distinction between effectiveness and efficiency when applied to a company. They stated that in general systems theory, effectiveness is the degree to which the actual outputs of the system (CM) correspond to its desired outputs, while efficiency is the * ratio of actual outputs to actual inputs. In the construc- tion industry these two terms, effectiveness and efficiency, appear to be used interchangeably. Hofer and Schendel (1978) went on to say that efficiency usually applied to Operations internal to the company while effectiveness ap- plied to the relationship between the company and its exter- nal environment. Steers (1977) made the point, after studying previous research, that, at least in some cases, efficiency is not a prerequisite of effectiveness. He cited the case of a government in time of war, the government had “unlimited“ 18 resources, where efficiency may be less important than ef- fectiveness. On the other hand, where an organization does not have unlimited resources, efficiency may be the most important factor in facilitating organizational effective- ness. Under these constrained circumstances, efficiency allows for increased productivity. He also stated that, in highly competitive market situations, efficiency may repre- sent survival itself. Goldhaber, et al. (1977), felt that the system ap- proach, CM, when prOperly applied helps to develop a more efficient operation that provides better quality, reduced time of work, and lower costs. Additionally, by providing better coordination and communication between specialized areas of the project, it further increases operational effi- ciency and the effectiveness of the company on the project. Adrian (1981) said that the CM firm's ability to be involved in the construction process throughout design, construction, and implementation places the firm in a posi- tion to make decisions that minimize the project's time and cost and maximize project quality, thereby making the pro- ject more efficient. This introduction of a single source of management into both the design and construction stage introduces, in Adrianis words 'work smarter not harder“ into the construction process and that is the key to obtaining the most efficient project. Earl M. Jennett (1972) said that theoretically, under CM, there should be a gain in efficiency through early input 19 or construction expertise and less need for contingency allowance. Roy Harley (1972) said that CM aims to meet the owner's needs most efficiently. Abraham S. Bolsky (Construction Management: The Man Behind the Concept, 1972) indicated that his company had found that an experienced CM who parti- cipates in the design and then innovates in the construction. process could produce savings of 25% to 33% over the cost of traditional design and construction procedures. Dioguardi (1983) writing about the construction indus- try stated that for companies to function efficiently their managers must introduce and expand the use of computerized information systems. These systems are combinations of computer programs, such as CPM (Critical Path Method) and PERT (Production Evaluation and Review Technique) which are used for planning, and estimating programs. We Sloma (1980) created a performance test for management which, due to the relationship of management to company effectiveness, could also be considered a measure of the effectiveness with which a CM company meets an ownerus requirements. He asked if managers were primarily guided by market or customer needs rather than theoretical concepts. This is especially pertinent to CM because an owner's needs are a quality project delivered on time and within schedule. An owner is not primarily concerned with thei'how' but rather with the 'when' and 'how much.’ 20 Another of Sloma's (1980.) questions had to do with the amount of time spent ”fire-fighting“ problems rather than preventing them. This relates to the planning conducted during the preconstruction phase by the CM company. His question regarding creating new ideas and solu- tions, as opposed to a “don't rock the boat' conformity is one of the central purposes in CM. This is the early use of construction knowledge to improve the design and to make alternatives available to the owner. This can save time and cost later in the project and lead to increased effective- ness in meeting the owner's requirements. Klein and Ritti (1984) differentiated among political goals, planning goals, and action goals of an organization. Political goals are usually set at the executive level to maintain resources of sentiment and power, both inside and outside the organization, and are often stated in general terms as ideas. Political goals tell the organization that these ideas are important, but specific planning goals are generally not given. Intended to guide choices, planning goals may be dif- ferent than the more public political goals. These are set to demonstrate organizational intent and provide a basis for choice among alternatives. These types of goals usually come from middle and upper management. Action goals, those set by first level management, are goal statements which can be acted upon without further simplification (Klein and Ritti, 1984). 21 Taken in the context of a CM company, an example of a planning goal would be the signing of a contract for a CM project. The meeting of the owner's requirements are the organizational intent while the how, or action goals, are those actions which must be completed to meet the planning goals. ’ Thompson and McEwen (1958) stressed the close relation- ship between goal setting in the organization and the exter- nal environment in which the organization operates. In this case, environment means factors outside the organization which have the potential to influence organizational actions and success. In the construction industry, short term goals, i.e., project completion, etc., are influenced more by the company"s environment than by factors internal to the company. This environment includes not only the wishes of the owner, but also competition from other companies, unions, and the complexities of federal, state» and local regulations. As Dioguardi (1983) has pointed out, the construction company exists almost at the whim of factors in an environ- ment external to the company itself. The ability of a construction company to continue to operate is almost wholly' based upon its effectiveness in meeting goals set for it by its environment. This is not to say that the company, as Thompson and McEwen (1958) stated, has no input on maintain- ing a balance of power with this external environment. In the end, the company can turn down any contract for which it 22 feels the goals are unrealistic. In writing on the multivariate approach to measuring organizational effectiveness, Steers (1971) found that there was a surprising lack of consensus as to what constitutes a useful set of measures of organizational effectiveness. Although each model had three or four defining characteris- tics of success, there was little overlap among the ap— proaches. Only one criterion was mentioned in over half of the models he studied. This was adaptability/flexibility. This criterion was followed by productivity and satisfac- tion. WWI-m As described by Campbell (1980) , management by objec- tives (MBO) represents the ultimate in a goal-oriented model of effectiveness. Rather than an organization being evalu- ated on a single continuum, such as a cost/benefit ratio, MBO assumes that effectiveness is some aggregation of spe- cific, observable, and quantifiable accomplishments and failures. Either an organization accomplishes a specific task or objective set for it or it does not. Campbell (1980) mentioned that one relevant issue with HBO is what group or individual sets the goal(s) for a particular organization. A second issue is to what extent is it possible to define quantifiable goals for the organi- zation. Additionally, to what extent is it possible to know whether or not an objective has been met? He further stated that for a particular time period, each organization must 23 specify in detail the things which it wishes to accomplish. For the CM company MBO seems to be an especially appro- priate method of measuring the efficiency of its Operations concerning a specific project and its (the CM company's) effectiveness from the owner's viewpoint. The objectives are exceptionally clear-cut, at least from the perspective of the owner, and are arrived at, collectively, by the CM firm and the owner with input from the design professional (A-E). The desire of the owner to have a quality project, built on time and within the budget, is quite easily trans- lated into a yardstick by which the CM company can measure both its efficiency and its effectiveness. Organizationaljesisn Burns and Stalker (1961) originated the designation of organizational structure as mechanistic or organic. Miles (1980) characterized mechanistic forms as having a rigid breakdown of roles into functional specializations, precise definitions of duties, responsibilities and power, and a well developed command hierarchy through which information filters up and decisions are instructions flow down. Organic forms are more flexible and adaptable: jobs lose much of their formal definition, and communications up and down the hierarchy are more in the nature of consultations. In addition to the characterization he felt that the organic form is more suitable for changing conditions “which give rise constantly to fresh problems and unforeseen 24 requirements for action which cannot be broken down or distributed automaticallyu' Mintzberg (1979) designated five structural configura- tions for organizations. They are each characterized by specific prime coordinating mechanisms, key part Of the organization, and type of decentralization. His simple structure has direct supervision as the prime coordinating mechanism and the key part of the organi- zation is the strategic apex. Power over all important decisions is usually in the hands of the chief executive officer. Decentralization is non-existent but rather this type of organization has vertical and horizontal centraliza- tion. This structure is characterized by what it is not-- elaborated. Mintzberg's second structure is the machine bureauc- racy. Its prime coordinating mechanism is standardization of work and the key part of the organization is the techno- structure. Rules and regulations are the seat of power for this structure with formal communication favored at all levels. The machine bureaucracy has limited horizontal decentralization. Another structural design for organizations is the professional bureaucracy. Standardization of skills is its prime coordinating mechanism with the key part of the organ- ization being the operating core. The Operating core is defined as where the Operators carry out the basic work of the organization. In the case of the professional 25 bureaucracy the Operating core is composed of trained and indoctrinated specialists--professionals. This structure is characterized by both vertical and horizontal decentraliza- tion. With its prime coordinating mechanism being the stand- ardization of outputs the divisionalized form has as its key part of the organization the middle line. This form has limited vertical decentralization. The final organizational firm, as noted by Mintzberg (1979) is the adhocracy. This form, although it is the newest, seems to be a description of the construction com- pany which has organized itself for CM. As noted by Mintz- berg, this structure is highly organic, with little formali— zation of behavior; high horizontal job specialization based on formal training: a tendency to group the specialists in functional units for housekeeping purposes but to deploy them in small market-based project teams to do their work: a reliance on the liaison devices to encourage mutual adjust- ment-~the key coordinating mechanism-~within and between these teams: and selective decentralization to and within these teams. In this form, managers are abundant--function- a1 managers, integrating managers, and especially project managers. Dioguardi (1983) felt that, due to the fact that the construction industry'is a macroeconomic sector that fre- quently gives rise to booms and recessions of a more or less intense character but of limited duration, the industry can 26 no longer operate as compact, highly integrated self- contained units that can perform all work Operations them- selves. The danger always looms of facing production peaks with an organizational structure too large or too small for the work actually awarded. This is why a new organizational approach needs to be developed, capable of determining in- terdependencies that run from a central base pole, toward various autonomous productive poses situated inside or out- side the firm. This means that the larger enterprises must act as contract coordination and management firms. Describing a military or line type organization for construction, Deatherage (1964) said that this is the‘old construction type where discipline was the essential fea- ture. As shown in Figurer2.1, where the solid lines show authority and the broken lines show contract and communica- tion, the solid lines predominate. Discipline, under this structure, is assumed to be the most important factor. Figure 2.2 illustrates Deatherage's concept of a line and staff organization where communication and contact are at least as important as discipline. WWW Experience The CM Committee of the Associated General Contractors of American (AGC) found, after reviewing projects where CM tiad failed to meet the owner's objectives, that the cause was usually directly related to the selection of an 27 Br d £351.28» .62 “HS—73332. .uamsmmmamz can GOwumuacmmuo Ncmmeou :0wuoouumcoo .m owuomw .mmmuonumwo "mousom .GOwumnwcmmuo amasuocwa no thumuwawe mo mHmmem .H.~ musmwm E [Z 2. _L_,_%__ r2 3 .... E E If E _33 go! again-818g .18—[8‘1805388 p523 _EJ_ _|J_.HE_ .8. .33.... w... ...3_ _ _ — Q :38!— _=82<...L ring as: — _ 3:293 _ _ dun-Hung _ a qulusnwuuruwnuunluj .23.. .523 232382.. 3w. ‘ _ - _ 295.2523 8 use»; 422.23 — 1 28 ¢H .Q.A¢oma .xuo» sz "Hawmnzmuooz. .ucwEmmmcmz can :oHumecmmuo wcmmfioo newuosuumcoo .m wmuomo .mmmumnummo "mousom .cofluMchmwuo mwmum cam mafia mo memem .~.N madman .I llllll d- l I J lllllllllll , IIIIIIIIIIIII ql ‘ II I llllllllll J p . macaw cacao gnome uaozo aaoco «ooze ZGEwCOu 2¢1u¢0u Zdiwmcu Zdiquu 2UU 4 w z; mack szwZNO FZwOZuhZEUaDm OJu: 20941. .a mawuzazu pzuszqawo I“. buqa.zOU mam o.u.u zo:uuamz_ _ — _ _ bzghadawo >huu .muowcwmcm Ha>au mo Numwoom cmomumaa 0mm «0 mmcmmoomoum .mowua>wuo< Hmc0wmmomoum mo accuson .mcauoocfimcm cw mosmmH :.Houu:ou can msaccmam ”mmoooun acmsommcmz. .pw>mo .mcwomusm was .m Hoocmxoa< .mumEmcwo “mousom mmoooum unmsommcmz .m.~ wusmwm muzzmaoga #9532; muzaiaa aofifiac kgfixaa . memo“. 5mg... :2: _ $9525.58: 28.3593 Susana—£29.... uEE¥;2: _ mzmzzmem: mhmamzou muzmzzou _ . _ wank—annumzoammx _ mo_fi:hfixzq< . m2255=m§ Fillllllllllr k. maaomzom maaamzum x2e: mo xzor Ewan—v60 8sz60 macaw ME... m¢20 years, 65.6%)2, had been offering CM services for seven to nine years (>12 2The parentheses denotes the most frequent response to that question and the percentage of respondents (N/32) who gave that response. This does not always correspond to the mean for that question. See Appendix E for all responses. Table 4.1 Organizational Characteristics: Deviations (S.D.), and Ranges Means, Standard Characteristic Meana 8.0. Low Bange_§I§E._. Years in business 4.22 1.18 6-10 yrs >20 yrs Years in CM 3.45 1.48 1-3 yrs >12 yrs Years with in-house 1.69 1.40 0 yrs >15 yrs design.capability Number of branch 1.59 1.01 0 >15 offices Number of full time 1.41 1.10 <50 >350 employees Number of CM contracts 1.78 1.18 1-10 >40 (last five years) Value of CM contracts 2.94 1.50 ($2.5 mill >390 mill (last five years) Percent of individuals, 3.97 1.47 (20% 80-100% employed during pre- construction, who are permanent employees Vblume of CM work with 3.47 1.30 $1-10 mill >$30 mill present work force Percent of in- lace 2.56 1.44 0-20% 81-100% volume due to M con- tracts (1ast five years) Useful sources of CM contract management information: - Professional Not at Ver Journals 2.53 .80 all useful use ul Not at < Ver - In-house seminars 2.38 .91 all useful usefu - Seminars by Not at Very professionals 2.94 1.34. all useful useful - Manager's own < Ver Very experience 4.47 .76 usefu useful Company organization 3.34 1.21 Line Staff a The mean given is based on the number (1-5) which corre- sponds to possible answers in the questionnaire. For an explanation of possible answers, see the questionnaire (Appendix B). 64 years, 37.5%), and did not have any in-house design capabil- ity (none, 75%). This typical company had no branch offices (no branch offices, 59.4%) and employed, full time, fewer than 50 people (<50 employees, 84.4%). In addition, this company had completed ten or fewer CM contracts (1-10 CM contracts, 53.1%) with a total value of $30 million or less ($2.5-30 million, 28.1%; >$90 million, 28.1%) in the last five years. The typical survey respondent could do $10-20 million of CM work with his present workforce and of the people em- ployed during the preconstruction phase, 40%-60% were perma- nent employees (80-100%, 59.4%). This company had generated 21%-40% of its in-place volume over the last five years from CM jobs. As a source of information for managing the company's CM contracts more efficiently, the manager's own experience was by far the most important (very useful, 62.5%). Inter- acting with design firms (somewhat useful, 46.9%) was found to be somewhat useful as an information source while semi- nars by professionals (somewhat useful, 28.1%), professional journals (somewhat useful, 53.1%), and in-house seminars (somewhat useful, 46.9%) were described as the least useful. This typical company had an organizational structure which is a combination line and staff structure (combination, 50.0%) . 65 W. The smallest CM project completed in the last five years (($500!(, 56.3%) was less than $500K while the largest ($1.0-$10 million, 46.9%) was worth between $1 million and $10 million. As shown by Table 4.2, in a CM project the typical company had the major role in establishing the team communi- cation procedures (always, 3735%) 50% of the time, while on 33% of the projects a network based scheduling system was required by the owner' (one-third of time, 31.3%). Only 33% of the time was the company hired as CM before the A-E was hired (one-third of time, 46.9%) and 50%-75% of the com- pany's CM contracts, over the last five years, were done for private owners (75-100%, 59.4%). W Prom reviewing Table 4.3 one can see that the typical company was more likely to use one individual to supervise the preconstruction planning than it was to use a team for supervision. It used computer generated schedules during preconstruction planning less than 30% of the time, and used computerized estimating techniques on almost no CM jobs. Value engineering techniques were incorporated into planning on 30% - 60% of all CM jobs but formalized methods of "risk analysis“ were used only rarely. The steps used in planning a CM job rarely varied with the size of the job, while 30% to 60% of the projects had dates set, during the conceptual stage, for completing the Table 4.2 Environmental. Characteristics: Dev iat ions (8.0) , 66 and Ranges Means, Standard Characteristic Meana SOD. ___.____Ban§3___.___. Low High Value of smallest CM project completed in last five years Value of largest CM project completed in last five years Part of time with major role in estab- lishing team communi- cation procedures Portion of CM con- tracts with network based scheduling system an owner re- quirement Part of time hired as CM prior to hiring of A-E Percent of CM jobs done for private owners 1.63 2.84 3.53 2.75 2.44 4.13 .83 1.42 1.32 1.34 1.08 1.29 ($500K >$10 mill ($1 mill >330 mill Never Always None All Never Always 0% 75-100% a The mean given is based on the number (1-5) which corre- sponds to possible answers in the questionnaire. For an explanation of possible answers, see the questionnaire (Appendix B). Table 4.3 Plannin Characteristics: tions ( .D.), and Ranges Means, Standard Devia- Low High Characteristic Meana S.D. One supervisor for 3.31 1.23 Never Always preconstruction Team supervision of 2.94 1.27 Never Always preconstruction Percent of time com- 2.16 1.35 Never Always puter enerated schedu es used in planning Percent of CM jobs 3.53 1.30 None All incorporating. Value Engineering" into planning CM jobs using com ut- 1.88 1.39 No CM All CM er estimating tec - jobs jobs niques during planning Planning steps vary 2.75 1.14 Never Always with job value Percent of CM jobs 3.63 1.31 None All with dates for com- pleting design phase set during conceptual planning Updating dates in 4.19 .93 Semi- Monthl or preconstruction plan weekly less 0 ten Application of “Risk 2.50 1.39 Never Always Analysis" PrOposal of design 3.84 .68 Sometimes Always alternatives Proposal of construc- 3.78 .83 Sometimes Always tion alternatives Decisions affecting planning made: - By owner 2.56 .80 None A11 - By CM 2.78 .91 1-30% All a The mean given is based on the number (1-5) which corre- sponds to possible answers in the questionnaire. For an explanation of possible answers, see the questionnaire (Appendix B). 68 design phase. Additionally, the typical company updated the preconstruction plan on a semi-monthly basis. The company sometimes proposed construction (sometimes, 46.9%) or design alternatives (usually, 53.1%) during the preconstruction phase. The decisions affecting planning during the preconstruction phase were made as often by all three members of the CM team, owner, CM, and A-E. W The company had met the needs of the owner, as defined in the questionnaire, less than 60% of the time on CM con- tracts over the last five years (Table 4.4). Fewer than 60% of the CM jobs had a final cost equal to or less than the owner's original budget (GO-90%, 50%) or the final pre-bid estimate (GO-90%, 50%). In addition, less than 60% of the CM jobs were completed by the owner's original completion date (60-90%, 62.5%) or the date established during the preconstruction phase planning (60-90%, 65.6%). The company actually contracts for less than 30% of the CM jobs for which they participate in a selection interview by the owner (l-30%, 40.6%). The company's CM portion is believed to be improving more slowly than that of their competition (same, 31.3%). W For clarity of discussion, the results of the research concerning the organizational characteristics will be ar- ranged as they were in Chapter 2. The order of discussion 69 Table 4.4 Measures of Effectiveness: Means, Standard Deviations (S.D), and Ranges _.._____Banae________ Measure Meana S.D. Low High Percent of CM jobs 3.69 .93 None All with final cost 5 owners original budget Percent of CM jobs 3.72 1.14 None All with final cost 5 final pre-bid estimate Percent of CM jobs 3.47 .92 None All completed by owner's original completion date Percent of jobs CM 3.72 .68 1-30% All completed by date es- tablished during pre- construction planning a The mean given is based on the number (1-5) which corre- sponds to possible answers in the questionnaire. For an explanation of possible answers, see the questionnaire (Appendix B). 70 is company experience, size, information sources, and organization. W The simple correlation analysis displayed in Table 4.5 indicates that the longer a firm had been in the construc- tion business (YRSNBUS) the less likely it was to employ a formalized method of 'risk analysis“ (RISKANL) during the conceptual stage of a CM project (-.30“").3 In addition, the A-E was less likely to make decisions affecting planning (DBCBYAB) during the preconstruction phase (-.43**). Owners were more likely to make decisions affecting planning (DECBYOWN) in the preconstruction phase for more established companies (.38* and .75***). The number of years a CM company has had an in-house design capability (YRSNHSE) was positively related to its having the major role in establishing the communication procedures (COMMO) for the management team (.44**). The number of CM contracts which a company had com- pleted in the last five years (NUMCMCTS) was positively related to the use of computer generated schedules (CMPPLN) to assist in planning (DECBYOWN, .41") and to the percent of decisions affecting planning made by the owner (.75***). Decisions affecting planning made by the CM (DECBYCM, -.47**) and the A—B (DECBYAB, -.32*) were inversely related 3The figure in parenthesis is the Pearson correlation coefficient with *p. S. .05, **p. S, .01, ***p. S. .001. 71 to the number of CM contracts .a company had completed in the last five years. QmanizatimaLSize As indicated by Table 4.5, the use of computer gener- ated schedules (CMPPLN) to assist in preconstruction plan- ning (.50**) and the percentage of decisions, affecting planning (DECBYOWN), made by the owner (.40**) both showed a positive relationship to the number of branches (NUMBRNCH) which a CM company has. The percentage of decisions (DECBYAE), affecting planning made by the A~B (-30*) showed a negative, or inverse, relationship to the number of branches a CM company has. The number of full time employees (NUMEMPFL), excluding trades, which the CM company had, displayed a positive relationship to both having the major role in establishing team communication procedures (COMMO, .36*) and the percent of time a team supervises the entire preconstruction phase (TMSUPER,.32*). Incorporating 'value engineering“ into preconstruction planning (VALENG) had a positive relationship to the value of new construction done, under CM contracts, in the last five years (VALCMCTS, .35*). The use of computer estimating techniques (CMPEST) in planning also had a positive rela- tionship (.37*) to the value of new construction. The percentage of decisions, made by the owner (DECBYOWN), affecting planning had a positive relationship (233*) to value of new construction while the percent of decisions 72 .80. Id... .3. 2...... .3. In... .55.... 339.8 1.» sou n .3328: com .3. :2» Noumea .Q a an: can-u I...» «0 soon I.» .5 Finnegan yo: Quasaouuueoo 6039—938 :4. a COM.I cc.Nn.| ccmv.l N<>mUmo ccwv.: cahv.l ccmv.o «CM. 00'. can. own. can.) can. caov.\ cohv.l «comb. QCOM.I .t . vl . . J \ .0503 icynoua.\5¢em.bo 54:83 53.3: \ l‘ :11: //\.. mowumwumuomumnu evn. eeNv. ch0. «CM. 000.! adv.) can. cmn.l cvn. cmn.l cO'.I own.! can. canv. can. «com. com. chm. «mm. . «NM. 9.0m.gm «out. 1‘ SAD-am mgnm summin— ufinuuouuuuanu .5537— hflflmlu 02Hd¢> moflumwuovomumno mcwccmam on omumamm Hm:0wumuwcmmuo mo mucmwowmmmoo cowumamuuoo HIJA””W\ flflhamlh Cflmamfllo. 000v. COM. own. so... Idusooo 83:1..qu .. 9.8 aquauuouucuzu 1.833 1886 m . v manna. 73 made by the CM (DECBYCM) had an inverse relationship (-.32*). The percentage of employees used by the CM firm during preconstruction planning (PRECONEM), who are permanent, had a positive relationship to having the major role in estab- lishing communication procedures (COMMO, .30*), setting dates, during the conceptual stage, for completing the de- sign phase (SETDTDBS, .36*), and updating those dates set for the firnfls preconstruction plan (PLNUPDT, .50**). Addi- tionally, it had a positive relationship to percent of decisions made by the owner which affect planning (DECBYOWN, .34*). The volume of CM work which the company could handle with its present workforce (VOLWRPRS)‘was positively related to the use of computer generated schedules for planning (CMPPLN, .35*) and to the use of computer estimation tech- niques during planning (CMPEST, .43**). Updating those dates set for the firnfls preconstruction plan (PLNUPDT, .32*) and the percentage of decisions made by the owner which affect planning (DBCBYOWN, .39*) were also positively related. Information The use of in-house seminars (SEMNHOUS), seminars given by professionals (SEMBYPRO), and interaction with design firms (INTERACT) as a source of information to manage CM contracts (Table 4.5) had an inverse relationship to one f 74 supervisor for the entire preconstruction phase (-.34*, -.40*, and -.35* respectively). Seminars by professionals (.34*) and interaction with design firms (.39*) as sources of management information had a positive relationship to using a team to super vise the preconstruction phase (TMSUPBR). These two also had an inverse relationship to planning which varies with the size of the project (PLNVSSIZ). The manager's own experience (MANGREXP), used as a source of management information, had a negative relation- ship to the use of computer estimating techniques during planning (-.40*). The manager's experience was positively related to establishing communication procedures for the management team (COMMO, .48**), setting dates, during the conceptual phase, for completing the design phase (SETDTDES, .34*), and for updating those dates set (PLNUPDT, .42**). In addition, the manager's experience was related in a positive direction to the proposal of design alternatives (MANGRBXP, .40*) and decisions made by the CM which affect planning (DECBYCM, .34*). Organizationalflrm The manner in which the CM company is organized (COORGAN), line structure to staff structure, was found to have a positive relationship to the use of 'value engineer- ing' (VALENG, .42**) and to updating those dates set during preconstruction planning (PLNUPDT, .34*). This organiza- tional attribute showed an inverse relationship to both the 75 proposal of design and construction alternatives (DESQIALT, -.40*** and CONSTALT, -47***) and to the percent of deci- sions, affecting planning, made by the CM (DECBYCM, -.46**). MW Enxirnnmentatharacteristics Experience The years a company has had an in-house design capa- bi lity had a negative relationship (YRSNBSE, -.30*) to the value of the smallest CM project done in the last five years (VALSMPRJ) but had a positive relationship (.44**) to the company being hired prior to the A-E (HIREBPAB). The number of CM contracts completed in the last five year (NUMCMCTS) and the percent of the company's in-place volume due to CM contracts (INPLUOL) had a positive relationship to the value of the largest CM project completed (VALLGPRJ) in the last five years (.50** and .44“ respectively) as shown by Table 4.6. QrmnizatinnaLSize The number of branch offices (NUMBRNCB, .54***), the number of full time employees (NUMEMPPL, .56***), the value of CM contracts over the last five years (VALCMCTS, .92***), and the volume (dollars) of CM work with their present workforce (VOLWKPRS, .75***) all had a positive relationship to the value of the largest CM project done in the last five years (VALLGPRJ). 76 Hoo.vu.mcxc .Hc.vfl.mac .mo.vu.man .xauume mumameoo on» How m xwvcmmmc 0mm .mo. cmnu Hmummum .m m can wanna may mo upon on» ma mcwumoamm no: mucwwowmmwoo coHumaouuoo Hafim «ov.l «41¢m. z<0m000 sewumecmmuol «cm¢. «mm.l mxmmwzcz «NM. BU‘MWBZH xvm.l OfifiNmme mDOmzzmm MDOthmm flOMHMEOMGHI *emv. «acmh. mmm¥3n0> «Hm. EHZOUmmm xexam.l . «ow. «canm. mBUZUA€> «am. kiwm. AhmZMZDZ «mm.l «cvm. muzmm232 wN Hm... ccvv. AO>QQZH «com. mBUZQZDZ «eve. ncom.l mmmzmmw 202mm? m mszmmw mocowummxml mmOHB>m mdmmmmHm mwmxm3fiz bmmodgd> UmmZmA<> UHUmHHTHUMHMSU caumflumuomumso Hmucmecoufl>cm HmcowumNHcmmHo mowumwumuomnmsu Hmucmficouw>cm Ou vmumHOm mowumwumuomumno Hmcowumuwcmmuo mo mucwwowmmmou :OfiumHmuuoo w.v OHQMB 77 Value of CM contracts done in the last five years and volume of CM work with their present work were both related positively'(.40* and .46**) to the owner requiring a network based scheduling system (NTWRKSYS). The number of full time employees was related positive- 1y to being hired prior to the A-E (HIREBFAE, .39*). The percentage of private owner CM projects (PVTJOBS) done had a negative relationship to both the number of branch offices (NUMBRNCH, -.38*) and the value of CM contracts completed over the last five years (VALCMCTS, -.51***) but had a positive relationship (.31*) to the number of permanent employees used during the preconstruction phase (PRECONEM). Information The use, for a source of information for managing CM contracts, of seminars given by professionals (SEMBYPRO, -.34*) and the manager's own experience (MANGREXP, -.35*) . was inversely related to the value of the largest project completed in the last five years (VALLGPRJ). Using interac- tion with design firms (INTERACT) and the manager's experi- ence (MANGREXP) as a source of CM management information both had a positive relationship to the percentage of jobs done for private owners (PVTJOBS) (.32* and .46" respec- tively). Qrcanizationaliorm How a company is organized (COORGAN), line structure to staff structure, was related positively to the value of the 78 largest CM job completed in the last five years (VALLGPRJ, .54***) but was inversely related (-.40*) to the percentage of jobs done for private owners. WW I E] . :1 | i I' W As shown in Table 4.7, the value of the smallest pro- ject done (VALSMPRJ) was inversely related to the use of one supervisor during preconstruction planning (ONESUPBR, -.45**) and to the percentage of decisions affecting plan- ning made by the owner (DECBYOWN, -54***). The smallest project value also had a positive relationship to both the use of the team to supervise preconstruction planning (TMSUPER, .34*) and to the use of “value engineering“ (VALENG, .37*). (See Table 4.7) The value of the largest project (VALLGPRJ) had a negative relationship to the percentage of decisions, affecting planning, made by the CM (DBCBYCM, -.38*) but was positively related to the use of “value engineering“ (.36*) and the use of computer estimating techniques during precon- struction planning (CMPEST, .32*). W Being hired as CM prior to the hiring of the A-E (HIREBFAE) was positively related to setting dates for the completion of the design phase during conceptual planning (SETDTDES, .35‘“). 79 «oo.vu.a... .uo.v-.a.. .mo....a.n .33- 33%-co I.» new L Ragnar-c com .3. :23 “—33.3 d e on: 323 :5 no so: I.» 5 05.3.9.3. 09. 3:33:80 Beau-nausea :10 can.) «come. con. «3.0 ohm... “305;.— .mn. nemanxaz .on.u .vn.- .wn.- .on. .nn.u .on. mamsxxez cam .... cmn . own . 23> eocvm.l 0:“ . necmv... I 35> 2:03 IUrDUB 2’88 944580 Bags A248"... 2 Sassa— mgm NH mm? a Emma—IO U8§> Ida—8 INA-=99! flgamg g 040 .«HOUOOHI‘U gag «Que-Icougcfl mowumwumuomumnu mcwccmam ou cmumHom moaumwnmuomumco Hangmanosfi>cm mo mucmwoflmmmou coflumHmuuoo n.v magma 80 W The percentage of jobs done for private (PVTJOBS), as opposed to public, owners was negatively related to the used of computer estimating techniques (CMPBST, -.37*), the use of “risk analysis“ techniques (RISKANL, -.34*), and to the percentage of decisions, affecting planning, made by the A-E (DECBYAE, -.36*). Percentage of jobs done for private owners showed a positive relationship to the proposal of design alternatives (DBSGNALT, .36*). WW Required by the owner as a requirement and not an option, the use of a network based scheduling system for CM contracts (NTWRKSYS) had a positive relationship to using one supervisor for preconstruction planning (ONBSUPER, .30*), the use of computer estimating techniques (CMPEST, .61***), setting dates for the completion of the design phase (SETDTDES, .31*), and to the use of “risk analysis“ (RISRANL, .38*). Using a team to supervise preconstruction planning (TMSUPER, -.33*) and the percentage of decisions affecting planning, made by the CM, (DECBYCM, -.39*) both had a nega- tive relationship to this variable. Additionally, the pro- posal of design (DESGNALT, -.36*) and construction (CONSTALT, -.34*) alternatives was also inversely related. 81 W The four measures of effectiveness, final cost equal to or less than owner's original budget (CSTOWNBG), final cost equal or less than final pre-bid estimate (CSTPREBD), job completed on or before owner's original date (JOBOWNDT), and job completed on or before the date set during preconstruc- tion planning (JOBPRBDT) could be combined into two differ- ent groups. The first of these groups could be visualized as dol- lars and dates. CSTOWNBG and CSTPREBD (see Table 4.8) were both most directly linked with meeting a cost and had an r of .76***. JOBOWNDT and JOBPREDT were most directly linked with meeting calendar dates and had an r of .48**. A second grouping concept would be those measures of effectiveness most directly concerned with goals internal to the CM company and those concerned most directly with goals more external to the company. CSTPREBD and JOBPREDT ap- peared to be involved with internally set goals and had an r of .47**. CSTOWNBG and JOBOWNDT appeared to be linked more to goals set by the owner and had an r of .44". Cutting across the arbitrary groups, costs-dates and internal-external goals, was the relationship between JOBPREDT and CSTOWNBG (.57***). 82 Table 4.8 Correlation Coefficients Between Dependent Variables Dependent Variable CSTOWNBG CSTPREBD JOBOWNDT JOBPREDT a CSTOWNBG 1.00 .76*** .44** .57*** CSTPREBD .76*** 1.00 b .47** JOBOWNDT .44** 1.00 .48** JOBPREDT .57*** .47** .43** 1.00 a*p.=< .05, **p.=< .01,***p.=< .001 bAll correlation coefficients not appearing in the body of the table had a p. greater than .05. See Appendix F for the complete matrix. 83 W W “b The length of experience which.a company had with CM contracts was related positively to the percent of completed CM jobs with a final cost equal to or less than the owner's original budget (.48**). Length of CM experience was also positively related to the percent of completed CM jobs with a final cost equal to or less than the final pre-bid esti- mate (.50**). (See Table 4.9) Years in business was unre- lated to the four measures of effectiveness. I F . l , , ! , ‘ :1 ”Many L ‘ ’ ’ . “f. Hypothesis N9 2 (l; ,- CM ‘, :7; l- * ‘1 "LU" "1': The Qize of a CM company (variable NUMEMPFL) was posi- tively related to the percent of CM jobs completed by the owner's original completion date (.31*). The percentage of permanent employees utilized during preconstruction planning was positively related to all effectiveness variables: final cost equal to or less than owner's original budget, final cost equal to or less than final pre-bid estimate, job completed on or before owner's original date, and job completed on or before the date set during preconstruction planning. ’W Exposure of CM managers to sources of information about new management techniques had one facet that was inversely related to completing the job by the owner's original date. That was the use of professional journals (-.39*). No other 84 Table 4.9 Correlation Coefficients of Simple Hypotheses Characteristics Related to CM Effectiveness Hypothesis Measures of Effectiveness Characteristic CSTOWNBG CSTPREBD JOBOWNDT JOBPREDT Hypothesis #1 YRSNCM .43xxa .50** b - Hypothesis #2 NUMBRNCH NUMEMPFL .31** VALCMCTS . PRECONEM .53** .38** .56** .57** VOLWKPRS .30. — Hypothesis #3 PROFJOUR , _.39. SEMNHOUS SEMBYPRO INTERACT - Hypothesis #4 NTWRKSYS — Hypothesis #5 HIREBFAE .44** .30* - Hypothesis #6 . COMMO ,32* .53*** - Hypothesis #7 VALSMPRJ .33* VALLGPRJ .33* - Hypothesis #8 CMPEST - Hypothesis #9 VALENG - Hypothesis #10 TMSUPER .36* .39* 3*p.=(.05, **p,=<,01, ***p.=<.001 bAll correlation coefficients not appearing in the body of the the table had a p. greater than .05. See Appendix F for the complete matrix. 85 Table 4.9 (cont'a) Hypothesis Measures of Effectiveness Characteristic CSTOWNBG CSTPREBD JOBOWNDT JOBPREDT - Hypothesis #11 DESGNALT .53*** .S7*** .46** CONSTALT .41** .41** .34** - Hypothesis #12 RISKANL 86 source of information was significantly related to effectiveness. " O W wmfi . The use of a network based scheduling system, as a requirement of the owner, showed no significant relationship to any effectiveness variable. Hxnethesia_flni_5 Being hired agéCM prior to the hiring of the A-E was positively related to meeting completion dates. The percent of CM jobs completed by the owner's original date had a relationship of .44** and the percent of CM jobs completed by the date established during preconstruction planning had a relationship of .30*. H¥Pnth£§18_flni_£ 7L Having the major role in establishing the team communi- cation procedures was positively related to the percent of completed CM jobs with a final cost equal to or less than the final pre-bid estimates (.32*). It also had a positive relationship to the percent of CM jobs completed by the date established during preconstruction planning (.53***). BMW 7% The size of a CM project had a positive relationship with two effectiveness variables. The value of the smallest project completed in the last five years was related to the percent of completed CM jobs with a final cost equal to or 87 less than the final pre-bid estimate 033*) while the value of the largest job was related to the percent of CM jobs completed by the owner's original completion date (.33*). W 0 The use of the computer estimating techniques and the use of “value engineering“ showed no significant relation- ship to any effectiveness variable (See Appendix E). Hypothesis_flni_ln —Z/‘ The use of a team to supervise the entire preconstruc- tion.phase of a project was related to percent of CM jobs completed by the owner's original completion date L36*). It was also related positively to the percent of CM jobs completed by the date established during preconstruction planning (.39*). law/é The only effectiveness variable to which the proposal of design and construction alternatives was not related, at a significant level, was the percent of CM jobs completed by the owner's original completion date. See Table 4.8 for the strength of those relationships. ffi lhflmmhsahLth_12 k/ The use of a formalized method of “risk analysis“ showed no significant relationship to any effectiveness variable. 88 W W As indicated in Table 4.10, the value of CM contracts completed in the last five years (VALCMCTS) showed a signif- icant difference (t s 2.59) in its relationship to final cost equal to or less than the owner's original budget when the effects of both job and planning characteristics were removed from the relation (controlled). This was an inverse relationship (-.54*). Table 4.10 also shows that the significant r of both percent of preconstruction phase employees who are permanent (PRECONEM) and the use of the manager's own experience as a source of CM contract management information (MANGREXP) stayed relatively equal regardless of which factors were controlled in their relationship with final cost equal to or less than the owner's original budget. These were both positive relationships. W W The years a company has been in the construction indus- try (YRSNBUS) showed a significant difference (t =- 2.29) in its relationship, a negative relationship (-.60*), to final cost equal to or less than the final pre-bid estimate. This was true when the effects of both job and planning charac- teristics were controlled (Table 4.10). 89 ~25 no. a. 28:23. 8. 83!...» 35:89.59 MOO. leucee .AO. vice .flO. le-c u an menu-.- as. cue-«m no. I52...» 0 a «cause.- 33 33¢ new gantry a Anon-3301.350 9353‘.— use «naughty... new Thaddeus“: wuceqnvquuooo coda-acumen. ncduuamo . Acouuodueuoauazo neucg «>60 ham 95:93:00 . acewoauooo 3.330.300 «Inuucmn 3:39.380 ecuucuouuoo Guiana Ou. 0O. ON.I «On.l dN.I NN.~ v0. cnO.I 00¢..l can... 5% O0. fin. mu. «mm. «CNv. On. bu. chm. «com. cos... g n0.n QO.~ «Om.u ch.I 8.! NO; NO. cOO.| Om.l VA... 85-: Ohin mu. «3...- ha... VH3: 06. ON. MV.I an.) $11! am: no. ON. 00... 8.l mO... OO.~ mO. «NO.I AN.I ON.I a; QC. mm. QT: H~.I VO.I Oats Om. .00.: Q~.I N~.I dang.— OO.~ ON" mN... NO. 0O. OO.H ON. Ov.l OM. OM. dgAAB-H CV. mm. hm. hm. vN. Av. On. On. ON. ON. “339 On.n do. 00.! ON. «ON. On. hm. «NO. CCOm. ocean. g.- nO. mm. mm. ad. NH. Omm.N mm. evm.l NN. mu. 3 DO. 8. ON. cOv. NN. hO.H hv. CNm. eNn. MN. mg. OF. NO. hn.| Omit VA... ma; ON.“ 'Q.I mn.l NH.I Ag Nm. m0. ON. ha. VO. 0'. OH. NN. GO. DO. 38% mv.n 00. «mm... hN.I v~.I HO. om. VO.I md... MO.0 “3% m~.d an. in. chm. ccOm. ON. MN. 8. ICNm. Hccov. gal» ON.N av. COO.I Nd... NO.I Om. ON. ON.I 8.0 NO.I gig-h Hu 0 H a HH A‘NE‘A H A‘HE‘O Ida-Hm OHM U u a “HH A‘HEA— H ing.— QSEHO DAUINHBOIhg i . Q i «goauowfiimuo DENIED flilii '3 E 20 mammal» 0cm mu:m«0flmmmoo cofiumHmuuou “mmoco>wuoommm mo mousmmoz on pmumHom moaumwuouomumno HmGOHumuwcmmuo 0H.¢ wanms 90 3. 2. 2f 8.- 8o. 3. 2.. St St 26 5.9.80 8. S. 3. 2. :9. mum-.M 8. :.2. .3. 2. mun-ox! an. 8. 8.- 2..- 2. S. 8. 8f 2. 2. abs—Eu 8. 2... 2.- 8. Z.- T... 3. 21- 3.- .3.- 9.93:! 8. 2. 2.- 3. 3.- me. on. 26 3.- .3.- 39.3.5 34 an. :3.- .mn.- an: 3. an. .3- .nnf .91- 328... 8. 3. 2? 8. S. 24 2.. S. 8. :3. 83...: no; on. .- a. 2... 8. 24 8. 3. 2. 9.8.39 ON. do. «No. ccov. cccnm. Nv. NA. ccww. accum- cccwm. §& 34 3. 2- S. 2. a: :4 Si 3.- 3. «8.9.5 fl 3. :3. 2. ca. 8. an. 3. 2. 3. «8.8!... ”am 2; m...- 8.- on. flan-«- 2; 3f 3. .2. an; S. 2. an. 2. 8. 2. on. S. 8. Z. .8193- 3. a: 2. 2..- 8. 8. 3. 2. mo. 2. His.» an. 2. Z. 9... an. S. 3. 2. 2. 3. 5.8...» 3. 3. 2.- 8f 3. 2. 3. 8. 8. 2. mixes» an a H u an 2mg...— u Alf—I1.— sfinm HH u n 0 HH dingb H gh‘a qua—law Unidusuikflfi 88.an 8an2. «2333530 aaocerruuuouum no 00.3.48. Eldon: oa.e OHQMB 91 J9h_Q9malflt£d_Qn_QL_B££QL£_an£LLa We The number of full time employees (NUMEMPFL) showed a significant difference (t a 2.64) in its relationship to completing the job on or before the owner's original date (Table 4.10)‘when the effects of job and planning character- istics were controlled. It had an inverse relationship bu44). The use of the manager‘s own experience as a source of CM contract management information (MANGREXP) also showed a significant difference (t = 2.89) when its relationship to completing the job on or before the owner's original date had the effects of job and planning characteristics con- trolled (.79***). The percent of preconstruction phase employees who were permanent (.56***) and the use of professional journals b539*) had r values which remained relatively constant and significant through both partial correlation procedures (Table 4.10). The first of these had a positive relation- ship and the second an inverse relationship. WWW Washing As indicated by Table 4.10, a significant difference (t - 2.37) was shown by the number of CM contracts completed in the last five years (NUMCMCTS). This showed a positive relationship (.72**). The percent of preconstruction phase employees who were permanent (PRECONEH) had a significant r which remained relatively constant when either job characteristics alone or 92 both job and planning characteristics were controlled. This was a positive relationship. WWI-253.111“ Shumm;s_QLEuunu_jmdsst Formal updating of the preconstruction plan (PLNUPDT) had a significant difference in its relationship to final cost equal to or less than owner's original budget when organizational characteristics were controlled (t =- 3.29) and when both organizational and job characteristics were controlled (t = 3.84). Both were negative relationships (Table 4.11). W W The use of "risk analysis' (RISKANL) showed a signifi- cant difference (t =- 3.l4) in its relationship to final cost equal to or less than the final pre-bid estimate when organizational and job characteristics were controlled (-.72*). W The use of computer estimating techniques during pre- construction planning (CMPEST) showed a significant differ- ence (t a 4.07) in its relationship to jobs completed on or before the owner's original date (.82**) when both organiza- tional and job characteristics had their effects controlled (Table 4.11). The setting of dates for completing the 93 ~s>ou mo. an aceoauucmqu one oasucacu vacuuuovcau .oo. v-.a... ..o. vn.a.. .mo. v-.a. n ma naduuca can cualam new o=~a>uu o u .aauu-a can o.an.m ac. .a.->-u o .wo.uu«uouooucgo nevus-acua>:o\uoco«uou«comuo uo~ acunuouucoo. unsunouuuooo scaucuuuuoo Hoauunao aheauuuuououuezo auscuuouqcacuo uOu ocauuouucoo. unsounduuooo coda-«ounce «nuance: synagoguuoou couucaouuoo cum-«ma sn- vo. no. no. o_.| nu. vo. s~.- -.u n~.- udanUfln mn.u oo. cam. ad. ad. ~o.~ vm. coon. cov. 0N. lowdown an.” no. vm. mo.- nu. ~c. nm.~ mo.u -.n on. zlounuua ca. no. av. can. ocqv. co. nu. cu. we. ccuv. andfimzoo m~.~ o~. nu. «~m. ccahm. mo.u on. o~.u vn. cconm. andzuwua v~.n av. can. oo.u no. no. o~.~ mo. o~m. ha. Aldumnl n~.~ mm. On. pa.) mo. vo.n a~.n «.05.: acuo.u he. uDADIAL an.“ on. no. no. mw. no.” oon.~ on.u sn.u ww. «unborn» as. an. nw. oo.- ~o. om. ~c.~ mu. um. mo. Numm>las en.~ an. vm. n”. vn. on. Nb. - ~v. mm. nu. hmnnlo no. oo.~ Nv. .No. -. o~. n~. no. v~. ha. uzuqa> ma. co. hw. vw. «a. o~.~ vo. -.u nu. -. nebula ow." vM. ~m. cu. do. nu. ha. mo. ow. no. anaamlh no. no. No. no. voo.a nn.~ an. av. 00. no. nuhamuxo an a a u an dub—5.. u a‘fiflzm Hun—tum an a u u = 35.— H 445—34.— Iaatum Ouunquouocudfi o o o n a ma.::a.a 89...th g8 Inca-auuoouuu no nous-ell mummeuu can mucmfiowmwmoo cofiumHmHHOU .mmmcm>wuommmm mo mmucmmmz ou woumHmm moflumfiumuomumnu mcficcmam Ha.v manna 94 o~. ~o.. «o.- m.. ~..- nv. ha. .n.- o..- n~.- saunas: an. no. mm. co. ..av. o... no. .om. oo.- ... torques co. so.. no. -.- co. ow. mv. an. no. ... zsounosa ~.. .9. mm. .mm. .... om. an. .o.- coo.- o.. paepmzoo «a. ... ... .aq. ..oo. nm.. co. v..- oo.- .~.. uaazuaua mmqm om. ..o.- o.. ~.. . om. o.. m..- a..- v..- az¢umns m... oo.~ o..- o..- .vn. a... «3.. an.- .~.- o.. pans-a. mmqw qmqm ..o~.- .om.- vN. mmam. “Nam .po.- .om.- co. munsapua mo. .5. av. «c. ca. v.. ... ...- n..- o..- n.mm>saa o... a... an. .mv. ... mmaw «o. ...o. o.. noo.- gunman ma. oo. o..- m.. 5.. me. ... .o.- no. no. cause» o.. no. no. ..mo. ...m. nv. ma. ao.- a..- co. squats an. ~.. , ov. on. on. n... vo. .oo. an. .oa. cannons .s. an. o..- m~.- .mn.- an. no. mo.- n..- m«.- «unamuso .. u . a .. .a..u¢m . .¢.suaa aaaz.m .. a . a .. 42.nnas . aauauam u..:.m 0.»..uoao-uagu absences auxin-on oe.:=o.a aaocguuuouum no nausea-l A©.ucoov HH.v manna 95 design phase, during conceptual planning (SETDTDES), had a significant difference in its relationship to jobs completed on or before the owner's original date when organizational characteristics (t - 2.71) andwhen organizational and job characteristics were controlled (t a 2.71). This was an inverse relationship (Table 4.11). MW Waning Setting dates for the completion of the design phase, during conceptual planning (SETDTDES), had, as indicated by Table 4.11, a significant difference in its relationship to jobs completed by the date set during preconstruction plan— ning regardless of whether organizational characteristics (t =- 3.20) or both organizational and job characteristics (t - 4.35) were controlled. This was an inverse relation- ship. The use of I'risk analysis“ (RISKANL) showed a signifi— cant difference in its relationship to this measure of effectiveness (t :- 2.61) when the effects of both organiza- tional and job characteristics were controlled. This rela- tionship (-.6l*) was an inverse relationship. WWW 911W Wals- No other organizational or planning characteristic had a significant difference (t value) in its relationship when other characteristics were controlled (Tables 4.10 and 4.11). Additionally, no other organizational or planning 96 characteristic had an r value which remained relatively constant, at an acceptable level of confidence, through the partial correlation procedure. W This chapter has provided a description of the mailing and follow-up procedures utilized for the questionnaire and a discussion of the return rate. ‘The typical company re— sponding to the questionnaire was described in detail. The significant relationships between organizational characteristics and planning (44 total) and organizational characteristics and job characteristics (20 total) were pointed out. Additionally'the significant relationships between job characteristics and planning characteristics (17 total) were noted. Those significant relationships (7 total) that indi- cated support for the simple hypotheses were also described. The lack of support for four simple hypotheses was noted. Described in this chapter, additionally, were those partial correlation coefficients which had a significant difference for organizational characteristics related to measures of effectiveness when the effects-of job charac- teristics were controlled (none significant) and when the effects of both job and planning characteristics were con- trolled (6 total). Those relationships between planning characteristics and measures of effectiveness which had-a significant difference when organizational characteristics were controlled (4 total) and when both organizational and 97 job characteristics were controlled (7 total) were also noted. CHAPTER 5 DISCUSSION AND CONCLUSIONS 91211131! This chapter discusses those relationships reviewed in Chapter 4 and provides the conclusions reached by the re- searcher as a result of the analysis performed on the data collected during the research. Included in this chapter, additionally, are recommenda- tions for further research pertaining to those areas for which the research posed questions but for which the data collected had no satisfactory-response. Limitations This study had several limitations which may restrict its ability to predict the relative impact which planning, done in the preconstruction phase of a CM contract, has on the CM company meeting an owner‘s goals. Two of these, even though limitations in one sense, actually increased the confidence with which the statistical analysis could be interpreted. fiamlsJize The first limitation was the size of the sample on which the statistical analysis was performed. Sampling, in 98 99 general, is used because it is presumed to be descriptive of a population, a larger collection of entities similar to those found in the sample itself. Sampling helps the re- searcher cover the greatest possible number of cases within the limit of his or her resources. In return for this gain some degree of certainty must be sacrificed (Ziegenhagen and Bowlby, 1971). A sample size of 32 does, of necessity, lead to a lesser degree of certainty which could be placed in the results, since this small sample-may'be in some ways dis- similar to CM firms that were not sampled or did not re- spond. Because the sample size was small, however, the results, especially those concerned with correlation coeffi- cients, are conservative. Examination of the formula for significance tests given in Chapter 4 will show that level of significance depends on sample size (n) as well as the size of the correlations observed. In a sample size of 32, variables which are found to be significantly related are likely to be of importance in a larger sample or in the population. WW As was discussed in Chapter 4, in the description of the typical company which answered the survey, the question- naire was answered by companies which were relatively small. The typical company had less than 50 full time employees, had done less than $30 million in CM contracts over the past five years, and had few, if any, branch offices although they had been in business for between 16-20 years. As a 100 consequence, the results of the research, and the conclu- sions drawn from those results, were only applicable to other CH companies in Michigan which fit within those para- meters. W The four measures of the effectiveness with which a CM company meets an owner's goals: CM jobs with a final cost equal to or less than the owner's original budget (CSTOWNBG), CM jobs with a final cost equal to or less than the final pre-bid estimate (CSTPREBD), CM jobs finished by the owner's original date (JOBOWNDT), and CM jobs finished by the date set during preconstruction planning (JOBPREDT), all had fairly small standard deviations. (See Table SulJ No matter what shape the distribution of responses, this, the small S.D., meant that a large proportion of these survey responses all had the same answer marked. Other responses on the survey also had small S.D.‘s (see Tables 4.1 to 4.3) but these four were especially noteworthy. Although these small S.D.‘s indicated a high level of agreement among the companies surveyed, they also meant that strong correlations are not as likely when other variables were related to these four. That is, because the ranges of the effectiveness variables were small, the greater variance in organizational characteristics, job characteristics, and planning techniques, were less likely to show a linear relationship to effectiveness than if these four measures were spread over a wider range. 101 Table 5.1. Measures of Effectiveness: Means, Standard Deviations (S.D.), and Ranges Measure of Effectiveness Mean S.D. Low High CM Jobs Final Cost 3.69 -.93 None All S Owner's Original Budget CM Jobs Final Cost 3.72 1.14 None All 5 Final Pre-Bid Estimate CM Jobs Completed By 3.45 .92 None All Owner's Original Date CM Jobs Completed By 3.72 .68 1-30% All Date Set During Preconstruction a The mean given is based on the number (l-5) which corre- sponds to possible answers on the questionnaire. explanation of possible answers, see the questionnaire (Appendix B). For an 102 W Two sets of questions in the survey instrument had no useable responses marked on the returned questionnaire. These were questions having to do with where the company performed CM work (questions 5-9, Appendix B) and regarding financial ratios (questions 50-52, Appendix). The series of questions which asked where the company performed CM contracts was designed to indicate if the company was exposed to conditions other than those which exist in Michigan. The lack of this information-made the generalization of results to include any companies located outside Michigan unwarranted. The questions concerning financial ratios were designed to give added validity to the measures of effectiveness. Without these responses it was impossible to draw any con- clusions as to the link between effectiveness in meeting an owner's goals and the success of the company as a business enterprise. WWW Elanninmaracteiisiics Emu-shes Of the 75 possible correlations between experience related to organizational characteristics and planning char- acteristics four (5.3t) were found to have a positive rela- tionship while five (6.3%) were found to have an inverse relationship. 103 Discussion The longer a company had been in the construction industry, the more decisions affecting planning were made by team members other than the A—E. This seemed to partially support the team concept of decision making, especially for those decisions which affected planning. This supported the work of Adrian (1981) and Foxhall (1972). The use of “risk analysis“ declined the longer a com- pany had been in business. This seemed to support the Business Roundtable (1982) finding that many construction project estimates were prepared without using state—of-the- art techniques for risk analysis. The longer a company had had an in-house design cap- ability, the more they felt that the owner made a large percentage of the planning decisions while they made less. This length of in-house design experience also was related to the CM company's use of the computer in planning and to having the major role in establishing the communication procedures for the management team. The more CM contracts they had completed in the last five years, the less likely it was that planning decisions were made bythe A-E. This supported Fox's (1976) comment that being structured as a team was not enough. Experience was the key. This indicated that the more experience a construction company had with CM the less likely it was that decisions affecting planning would be left to the A-E. 104 Conclusions Based on this sample, and the data collected, it ap- peared that companies which were older, and more experienced with in-house design capabilities and CM contracts, were more likely to let the owner make decisions affecting plan- ning. They were also more likely to use computers in plan- ning and to take a major role in establishing team communi- cation procedures. These findings appeared to indicate, at least for the companies surveyed, that the CM firm was concentrating on the planning technology and leaving the major portion of the decision making process to the owner. This contradicts the AGC (1980), ASCE (1976), and Foxhall (1972). Qwanizationalflzo Organizational size was positively related in 15 out of 75 (208) possible correlations to planning characteristics. Size was inversely related in only 2 out of 75 (2.6%) corre- lations possible. Discussion Generally, all measures of the physical size of the CM company were positively related to planning characteristics. No significant relationship was detected for any measure of size to the use of one supervisor, planning steps varying with size of the project, the use of risk analysis, or the proposal of design and construction alternatives. The per- cent of decisions, affecting planning, made by the owner 105 increased with all measures of size except the number of full time employees. As the number of preconstruction plan employees who were permanent and the volume of CM work possible with their present workforce increased, so did the number of planning characteristic relationships that were significant. Of particular interest was the finding that the larger the total value of CM contracts completed over the last five years the more the CM company employed “value engineering“ and computer estimating techniques. This appeared to sup- port the finding by the Business Roundtable (1982) that the computer estimating hinged on develOping a reliable data base which can be achieved through use on multiple projects. As the total value of the CM contracts Completed over the last five years increased, the percent of decisions made by the CM decreased. This supports the previous conclusion that experience was an important factor, for these compa- nies, in the choice to let the owner make decisions affect- ing planning. As the CM company increased the number of branch offices it had, the A-E made a smaller percent of the decisions affecting planning. This supported fox's (1976) comment mentioned in the preceding section. Conclusion The data collected appears to support the writing of Silnverman (1976) and Pilcher (1976). This was that the larger and more complex construction projects require a large diversity in skills and techniques, not the least of 106 which is in the management of the organization. These diverse skills and techniques are more often found in the larger CM firms. Information The sources of information to manage CM contracts were found to be positively related in 7 out of 75»(9.3%);pos- sible correlations while they were inversely related in 6 out of 75 (6%) correlations. Discussion As the use of in-house seminars, seminars by profes- sionals, and interaction with design firms increased in usefulness as sources of information for managing CM con- tracts so did the use of a team to supervise the precon- struction planning. As expected, as team use increased the use of one supervisor decreased. This supported the conten- tion by Logcher and Levitt (1976) that the availability of increased information may well exceed the amount a single project manager can process and use. Even though they were writing of M18 generated information the concept appeared to be true here also. If a company found the use of the manager's experience useful as a source of management information it also de- creased the use of computer estimating techniques. The company was also more likely to set dates for completing the design phase and to up-date plans less frequently but to make more of the decisions affecting planning. This was the 107 only instance where an increase in an organizational charac- teristic was accompanied by an increase in the percent of the decisions, affecting planning, which were made by the CM. This use of the manager's experience was also related to the company more often proposing design alternatives. Table 4.1 shows that the manager's experience was the most useful source of information and it showed in the correlation coefficients. This seemed to indicate that the CM companies-put an inordinate amount of faith in the cor- rectness of the managem's information concerning planning. Conclusions This sample, and the data collected, appeared to indi- cate that companies which actively seek disparate sources of information used a team approach, more often than not, for planning during the preconstruction phase. It also sug- gested that the manager's own experience was the factor which decided which of the planning techniques investigated was to be used. QmanizationaLEorm Discussion The data collected indicated that companies organized along a line concept were more likely to prOpose design and construction alternatives and also more likely to make a larger percentage of decisions affecting planning. These findings seemed to support Mintzberg's (1979) concept of the simple structural configuration for the organization. In 108 this structure direct supervision was the prime coordinating mechanism. The power over all important decisions rested with one individual. The data indicated that that was what happened in the CM company also. As the organization of the company shifted towards a combination line and staff or staff design, the data indi- cated that they were more likely to have a major role in establishing team communication procedures but also to up- date their preconstruction plan less frequently. Conclusions The conclusion to be drawn from the analysis of the data was that companies organized along a line form, as opposed to staff, were more likely to propose design and construction alternatives and to make a larger percentage of decisions affecting planning. WWW CharactcristichslatchLzl-annino Charactsristics Generally the results supported the findings and be- liefs of other researchers and authors. That was that the larger, more experienced companies tended to utilize more of the planning characteristics which were investigated by the study than did smaller, less experienced CM firms. What was unexpected, and seemingly, contradicts most published concepts of CM was that as the CM company size and experience increased so did the percent of decisions affect- ing planning made by the owner. This apparent increase in 109 the decisions made by the owner was related in a positive direction, at a significant level, to more organizational characteristics than any other planning characteristic in- vestigated. A possible explanation of this, and one sup- ported by the data which indicated that a line organization CM company made a larger percent of decisions than did a staff organization, was that the respOnsibility for decision making became too diffuse in staff organizations. WWW to_Enuironmsnta1_Charact.uistics Exosnicncc Of the 25 possible correlations between experience related to organizational characteristics and environmental characteristics, three (12%) were found to have a positive relationship while one (4%) was found to have an inverse relationship. Discussion As anticipated, the companies which had more experience with CM projects and a larger percentage of their total volume generated by CM contracts also tended to be awarded the larger projects. This suggests popular support for the recommendation by the AGC (1982) and the GSA (1975) that past experience should be a basic consideration when hiring a CM company. i As the years a CM company had had an in-house design capability increased, the value of the smallest project 110 completed in the last five years decreased. This supported the finding that larger, more experienced CM firms got larger projects. This could be explained by cost effective- ness. It may not be cost effective for a large CM company to split some of its resources among smaller projects, nor for smaller companies to acquire the resources needed for large, complex projects. Being hired as CM, prior to hiring the A-E, increased as experience with in-house design capability increased. This could indicate that the CM firm was performing the functions of the A-E as well as that of the CM. . Conclusions As indicated by the data collected, the more experi- enced CM companies also were awarded the larger jobs. QroanizationaLSizc Eight of 25 (32%) possible correlations between mea- sures of CM company size and environmental characteristics were found to be positive. Two of 25.(8%) were found to be inversely related. Discussion All but one of the measures of size were found to be positively related to the value of the largest CM job com- pleted in the last five years. The one exception was the percentage of preconstruction planning employees who were permanent. These findings supported the conclusion that size, along with experience, appeared to be a major factor 111 in the award of larger projects. This supported the conten- tion of Diepeveen (1976) and Silverman 91976) that owners did not want the skills-gained on a project to be lost at the end of the project. One way of keeping those skills is to have an organization large enough to retain them inter- nally between jobs. Those CM companies which had a larger total dollar volume of CM contracts (last five years) and were able to do a larger volume of CM work with their present workforce also tended to have owners require a network based scheduling system more often. CM companies with more branch offices and a larger total value of CM contracts (last five years) appeared to do fewer jobs for private owners. This could indicate that CM jobs done in the public sector were usually larger (dollar value) and that working on those public sector jobs required that branch offices be opened or available. Conclusions As found for experience, those companies which were bigger appeared also to be those companies which were award- ed the larger CM contracts. Those larger companies also had project owners who required the use of network based sched— uling systems. This may be explained by the propensity of the Federal government to require some variation of CPM (GSA, 1975). These larger companies also did fewer private sector contracts than did those that were smaller. 112 Information Of the 25 possible correlations between sources of information and environmental characteristics two were found to be positively related (8%) and two were found to be inversely related (8%). Discussion The use of the manager's own experience and interaction with design firms as a source of CM contract information increased the more the company performed in the private sector. Additionally, as the value of the largest CM con- tract completed in the last five years increased, the use of seminars given by professionals and the manager's own exper- ience as a source of management information appeared to decrease. Conclusions As indicated by the data collected from this sample, the larger firms appeared to depend less on seminars and the manager's experience than did CM firms which were smaller. QtoanizationalJorm Staff organizations, as indicated by the data collect- ed, appeared to obtain contracts for larger CM jobs and to do less work in the private sector. This was a further indication that those companies which did the larger CM projects did them in the public sector, as Opposed to the private sector, and tended to use staff rather than line organizational designs. 113 ConanConclusionsi—Droanizational ChauctcsisticLBclatodJanuironmsnt-al Charactctistics In general, as indicated by the data, the larger compa- nies were also the ones which performed on the larger con- tracts. Also these larger contracts appeared to be in the public rather than the private sector. Additionally, these contracts were indicated as having owners who required a network based scheduling system. A review of Appendix F indicated a strong negative correlation between value of the largest CM project (VALLGRPJ) and percent of CM contracts done for private owners (PVTJOBS) which lent support to this conclusion. ‘The use of network based scheduling systems and private jobs were also correlated in a negative direction. Ensitonmsntamxaractssistichsl-itcd tLRlannintharactstistics llaluc_of_fimallcst_2roisct Of the 15 possible correlations with planning charac- teristics, the value of the smallest CM project completed (last five years) was positively related to two (13.3%). It was inversely related to two (13.3%). Discussion The use of a team to supervise preconstruction planning increased as the value of the smallest CM project completed increased. As a consequence the use of one supervisor decreased. This appeared to support the conclusion that the larger the project the more likely it was that it was done 114 by a larger company which used a team concept during precon- struction planning. The use of “value engineering“ also increased with the size of the smallest project. This fact, taking into consideration the relationship of “value engi- neering“ to the largest project completed (next section), appeared to support the correlation found between the use of “value engineering“ and value of CM contracts, value of largest and smallest project, and being organized along staff lines (Appendix F). Conclusions As indicated by the data collected, and supporting previous findings of the study, the larger companies were more likely to use a team approach to planning. W This was positively related two out of 15 (13.3%) possible correlations and inversely related one out of 15 (6.7%) possible correlations. Discussion The value of the largest CM project completed in the last five years had related to its increase the increased use of “value engineering“ and the use of computer estimat- ing techniques. These findings added additional depth to the support for these, in some ways, advanced techniques being associated with the larger, more progressive CM com— panies. The Business Roundtable (1982) felt that the use of computer estimating hinged on deve10ping a reliable data 115 base. Large companies have better Opportunities to develop this needed data base. .As the value of the largest project increased the percent of decisions, affecting planning, made by the CM decreased. This supported previous findings of this study but appeared to contradict the writing of Adrian (1981) and Goldhaber, et al. (1977). The CM is thought to make more of the decisions, not less, on larger projects. Conclusions The conclusion to be drawn from this data was, as previously stated, that the larger companies have access to, or at least use more frequently, more complex planning tech- niques. WW BcouitcLBLDJ-mcr Out of 15 possible correlations to planning techniques the use of a network based scheduling system, as an owner requirement, was positively correlated in four instances (26.7%). It was inversely correlated in four out of 15 instances (26.7%). Discussion As the requirement for network based scheduling in- creased the company was more likely to use one supervisor to supervise preconstruction planning. As previously, the use of a team declined. The use of computer estimating and “risk analysis“ increased along with the scheduling system 116 requirement while prOposal of design and construction alter- natives decreased. This appeared to indicate that if a network based scheduling system was required that once the schedule was set it was impervious to change. This was also supported by the decline in the percent of decisions made by the CM which affected planning. Conclusions The use of a network based scheduling system, as an owner requirement, actually appeared to hinder the proposal of design and construction alternatives. The key here could have been “owner required.“ It is conceivable that the scheduling systems required by the owner concentrate on carrying out the original design, and leave no time for proposing design alternatives or revisions. HiLinLScousncc This environmental characteristic was found to be posi— tively related to one planning characteristic (6%). Discussion The CM being hired prior to the hiring of the A-E was related, positively, to setting dates for the completion of the design phase during conceptual planning. This charac- teristic was also related to length of experience with an in-house design capability'(Appendix F) and so this rela- tionship may have been another manifestation of the CM firm fulfilling the role of the A-E. 117 Conclusions This relationship appeared to support the supposition, indicated by other data collected, that, at least in some cases, it was possible that the CM firm was performing the function of the A-E. This was in addition to their function as CM. W The percent of CM jobs done for private, as opposed to public, owners was positively related to two out of 15 (13.3%) possible planning characteristics. It was inversely related in three out of 15 (20%) possible instances. Discussion This environmental characteristic displayed the same behavior, in part, as that discussed for organizational characteristics related to environmental characteristics. That was that the larger contracts, those more likely to require the use of computers and more involved planning, were found doing projects in the public sector. The inverse relationship of the use of computerized estimating tech- niques and “risk analysis“ to the percent of CM jobs done in the private sector appeared to support that finding. The CM companies sampled also appeared to provide more in the way of design alternatives when they were working on private sector CM contracts. Additionally the percent of decisions, affecting planning, made by the CM increased, at 118 the expense of decisions made by the A-E, as the CM company did more jobs in the private sector. Conclusions The relationship displayed by this environment charac- teristic related to planning characteristics appeared to support other data collected as to the contention that public sector jobs were larger, more complex, and required more sophisticated planning techniques. ConsnLConclusionsLJncironmsnt-al :1 |.|. EJIiIEJ I Charactsristics The relationships in this section seemed to reinforce those found previously that the planning for larger jobs was supervised by a team and that these larger CM jobs were to be found in the public sector. The idea that the more complex the job the more complex the planning required was also supported by this section. This supported Burger and Halpin (1976) in their contention that present day projects were getting larger and more complicated and that this in turn called for an increasingly sophisticated project con- trol. WW mationshioleJliscussion Fifty-eight percent of the variability (see Table 5.2) in completing the project with a final cost equal or less than the owner's original budget (CSTOWNBG) was explained by a final cost equal to'or less than the final pre-bid 119 Table 5.2 variance (r2) Explained by Relationship of Dependent Variables Dependent Variable CSTOWNBG CSTPREBD JOBOWNDT JOBPREDT CSTOWNBG 1.00 .58 .19 .32 CSTPREBD .58 1.00 a .22 JOBOWNDT .19 1.00 .23 JOBPREDT .32 .22 .23 1.00 aAll values not appearing in the body of the table a p. greater than .05. 120 estimate (CSTPREBD) which also demonstrated the close rela- tionship of those measures of effectiveness linked to dol- lars. Completing the job on or before the date set during preconstruction planning (JOBPREDT) explained 23% of the variability in meeting the owner's original date (JOBOWNDT). It also partially confirmed the supposition that those meas- ures of effectiveness concerned with dates were linked, at least for the companies surveyed. Of the variability of completing the project with a final cost equal to or less than the final pre-bid estimates (CSTPREBD), completing the project on or before the date set during preconstruction planning (JOBPREDTO explained 22%. This added additional insight into what had been theorized in Chapter 4. That was that internally set goals were associated, as were goals set more external to the CM com- pany. This latter supposition was supported by the r2 between jobs completed on or before the owner's original date (JOBOWNDT) and completing the project with a final cost equal or less than the owner's original budget (CSTOWNBG). This r2 was .22. The relationship that cut across the boundary of date- cost and internal-external goals was that completing the job on or before the date set during preconstruction planning (JOBPREDT) explained 32% of the variability in final cost equal to or less than the owner's original budget (CSTOWNBG). 121 H!Dflhh£fii§.floi_l Discussion The hypothesis that the length of time a company had been performing CM contracts had a positive relationship with effectiveness was supported by the relationship of the organizational characteristic, years in CM. ‘This charac- teristic was positively related in two of four (50%) pos- sible correlations. The percent of CM jobs with a final cost equal to or less than the ownerfls original budget increased as the years in CM increased. Also increasing along with years in CM was the percent of CM jobs with a final cost equal to or less than the final pre-bid estimate. The data indicated that the years a company had been in the CM field was a factor in meeting those measures of effec- tiveness most directly linked to dollar value»(CSTOWNBG and CSTPREBD) but not those linked most directly with calendar dates (JOBOWNDT and JOBPREBD). Conclusions The data collected from this sample indicated that years in the CM field could be used as an indicator of the ability of a CM firm to meet those owner goals related to dollar value but not those related to calendar dates. This, in part, supported the GSA (1975), the AGC (1982), and especially Tatum (1979), in their views that experience in the construction field and the CM field in particular should be used to evaluate a CMfirm's potential. 122 H!D££h£fii§.flci_2 Discussion The hypothesis that the size of a CM company was posi— tively related to effectiveness was supported by the data in six out of 20 (30%) possible correlations. The number of full time employees the CM company had was found, for this sample, to be positively related to the percentage of CM jobs completed by the owner's original date. The percent of preconstruction phase employees who were permanent was found to be the best indicator of effectiveness. It was related, in this sample, to all four of the measures of effectiveness which were surveyed. The percentage of CM jobs completed by the date set during preconstruction planning increased with an increase in the dollar value of CM work which the CM firm could do with its present workforce. These relationships appeared to support the writings of Fox (1976), Diepeveen (1976), and Silverman (1976) when they argued that the increasingly larger construction projects were making necessary companies which could retain the ex- perience~gained from previous projects within the company itself. Conclusions Of the five characteristics, pertaining to organiza- tional size, which were investigated, the one which best predicted the ability of a CM company to meet an owner's goals was the percentage of preconstruction phase employees who are permanent employees. 123 H!DDLh£flifi_flbi_1 Discussion The hypothesis that exposure of CM managers to sources of information about new management techniques is positively related to effectiveness was not supported by the data gathered as a result of this study. In fact, the use of professional journals as a source of CM contract management information decreased as the percentage of CM jobs finished by the date set during preconstruction planning increased. Inspection of the means in Table 4.1 will show that, of the five sources of information surveyed, respondents indi- cated that they found only their own experience useful. The standard deviations for three of these five items was small, indicating a restricted range of responses. Therefore, as previously discussed, significant correlations were not statistically'possible. This lack of usefulness attributed to new information seemed to support the findings by the Business Roundtable (1982) that construction companies were not instituting the modern management systems which were available to other sectors of the business world. Conclusions This hypothesis was not supported by the data collected in this study. 124 H!RDLh£fiifi.NC._A DiscussionAConclusions The hypothesis that a network based scheduling system, used during preconstruction planning, had a positive rela- tionship to effectiveness was not supported by the data collected. This lack of significant relationships could have been explained by the way the survey instrument was worded (Question 25, Appendix B). The question asked con- cerned the proportion of CM jobs where a system was required by the owner, rather than the proportion of jobs on which they were used. To the extent that responding CM firms use such systems when not required by the owner, the data do not provide a valid test of this hypothesis. H¥Dnthfiflifi_floi_i Discussion They hypothesis that being hired as a CM prior to the hiring of the A-E was positively related to effectiveness appeared to be supported by the relationship of the environ- mental characteristic to the two measures of effectiveness related to meeting dates set (JOBOWNDT and JOBPREDT). It was not significantly related to those measures pertaining to dollar values. This appeared to support the concepts of Adrian (1981). Conclusions The data collected from this sample appeared to support the hypothesis that being hired as a CM prior to the hiring 125 . of the A-E was related positively to those measures of effectiveness related to meeting dates set. MothcsileoiJ Discussion The hypothesis that the CM company having the major role in establishing communication procedures for the man- agement team (owner, CM, and A-E) was positively related to effectiveness was supported, for two measures of effective- ness; the percentage of CM jobs with a final cost equal to or less than the final pre-bid estimate, and the percentage of CM jobs completed by the date set during preconstruction planning. Both of these measures of effectiveness were internal to the company itself rather than linked more directly to the owner. This seemed to indicate that estab- lishing team communication procedures was more closely re- lated to meeting internally oriented goals rather than those more externally (to the company) oriented. This appeared to contradict Thompson and McEwen (1958) who stressed the close relationship between goal setting in the organization and effectiveness in the external environment in which the or- ganization operated. Conclusions The ability of the CM to establish the team communica- tion procedures was related to the ability of the CM company to meet those internally established measures of 126 effectiveness, at least in so far as this sample represented the population. EXDQLhcfiiD_NDi_1 Discussion The hypothesis that project size had no relationship to CM effectiveness appeared to be'contradicted by the rela- tionship between the value of the smallest and largest (last five years) CM projects completed and both the final cost equal to or less than the final pre-bid estimate, and the jobs completed on or before the owner's original date. The dataindicated that the larger the project the larger per- centage of completed CM jobs that met these measures of effectiveness. This contradicted the belief of Linstrom (1982) that CM worked equally well on any size project. Conclusions The data collected in this study indicated that the larger a CM project was the larger was the percentage of projects that would be completed with a final cost equal or less than the final pre-bid estimate and on or before the owner's or iginal date. 8W DiscussionLConclusions The hypotheses that using computerized estimating tech- niques and “value engineering“ in preconstruction planning had a positive relationship to CM company effectiveness was not verified by the data collected from this sample. No 127 significant relationship for either characteristic to a measure of effectiveness was evidenced by the findings. HypothesileoiJD Discussion That using a team to supervise preconstruction planning had a positive relationship to effectiveness was supported by its relationship to the two measures of effectiveness linked most closely to meeting calendar dates. As the use of a team increased so did the percentage of projects com- pleted on or before the owner's original date and on or before the date set during preconstruction planning. This supported the findings by Fox (1976) and Pilcher (1976). Conclusions This sample indicated that the use of a team to super- vise preconstruction planning was positively related to the CM company‘s effectiveness in meeting those owner goals linked to calendar dates set. W41 Discussion The hypothesis that proposal of design and construction alternatives-by the CM had a positive relation to effective- ness was the hypothesis for which the simple correlations provided the most support. Proposal of design and construc- tion alternatives was positively related to all measure of effectiveness but percentage of jobs completed on or before the owner's original date. This provided additional support 128 for the contention of all in the literature, including the AGC (1982), ASCE (1976), and Adrian (1981) that the intro- duction of construction experience into the design phase by the CM is one of CMJs most important aspects. Conclusions This data indicated that CM firms which propose design and construction alternatives to the owner are more effec- tive than those which do not. HypothesisJoiJz DiscussionZConclusion The hypothesis that the use of “risk analysis“ in preconstruction planning had a positive relationship to effectiveness was not substantiated by the results of this study. No significant relationship was evidenced by the data collected. As shown by Table 4.10 the total value of CM contracts completed over the last five years (VALCMCTS) was the only organizational characteristic to show a significant differ- ence (t-value) in its relationship (-.54*) to this measure of effectiveness (CSTOWNBG) when the effects of both 129 environmental and planning characteristics were controlled. The t-value was not significant when only environmental characteristics were controlled. This meant that, while environmental characteristics were not affecting the rela- tionship, some combination of planning characteristics was. The relationship‘was an inverse one. This indicated that as the total value of completed CM contracts became smaller the likelihood of finishing the project with a final cost equal to or less than the owner's original budget increased. This appeared to indicate that smaller, less complex projects were easier to control, and thus more easily met the owner's budget, than were the large complex projects and that planning characteristics played an impor- tant role in the ability of the CM company to meet the owner's budget. The r for company organization (COORGAN) held relative- 1y constant regardless of whether environmental or environ- mental/planning characteristics were controlled. This in- verse relationship indicated that CM companies organized along a line concept, usually a smaller company, were better than staff organizations at keeping a project within budget and that neither the type of job nor the planning done affected this relationship. The manager's own experience, useful as a source of CM contract management information, (MANGREXP) maintained a significant relationship to meeting the owner's budget irre- gardless of the control of environmental or environmental/ 130 planning characteristics. This indicated that neither en- vironmental nor planning characteristics affected this rela— tionship and that the use of the manager's experience, a positive relationship, was important, in and of itself, in the capability of a CM company to meet the owner's budget. The interrelationship between these three company char- acteristics (VALCMCTS, MANGREXP, and COORGAN) and the abil- ity of the CM company to meet the owner's original budget appeared to support Fox (1976) who said that the builder who executes small units, which are comparatively simple cannot not necessarily conceive, and by implication does not need, of the organization and control mechanisms necessary to manage large projects. Conclusions The data collected indicated, by the significant rela- tionships and significant t-values, that smaller, line or— ganization CM companies, who rely on the manager's experi- ence for management information, appeared better able to meet the owner's budget than did larger companies. This was indicated as applying to smaller CM projects. A possible explanation may have been that small projects, done by large CM companies, tended to fragment the resources available to large companies and that management had a harder job track- ing actual cost as related to the budget. When the effects of both environmental and planning characteristics were controlled the number of years that a company had been in the construction business (YRSNBUS) was found to have a significant t-value for its relationship to final cost of a project equal to or less than the final pre- bid estimate (CSTPREBD). This indicated that younger, and thus usually smaller, companies were more likely to complete a project at, or under, the cost given in the final pre-bid estimate than were older companies. This finding was not supported by available literature and seemed to contradict the AGC (1982), the GSA (1975), and Tatum (1979) who felt that past experience was a good indication of potential. This relationship was not evident when only the effects of environmental characteristics were controlled but ap- peared when the effects of environmental and planning char- acteristics were controlled simultaneously. This indicated that, at least for young companies, planning characteris- tics, and not environmental characteristics, were important factors in their ability to meet the final pre-bid estimate. Conclusion The data collected indicated that younger, less experi- enced CM companies completed a larger percentage of CM projects with a final cost equal to or less than the final pre-bid estimate than did older, more experienced companies. 132 It also indicated that some combination of planning charac- teristics had a more important affect on this relationship than did environmental characteristics. A possible reason for this may have been that younger companies approach the CM process in a more innovative manner. Although this was not generally supported by this study one possible indica- tion is the relationship (Appendix F) of years in business (YRSNBUS) to the use of “risk analysis“ (-.30*). This was that younger companies appear to use “risk analysis“ on more projects than did older companies. JDDJEHMHJ¢£C_QDJNLJEICL3 Shumms.QnflflUflu_Dats Discussion As shown by Table 4.10 the relationship of the number of full time employees (NUMEMPFL) to completing the job on or before the owner's original date was not a significant relationship when either environmental or environmental/ planning characteristics were controlled. What was indicated as being significant was the change in t-values when both environmental and planning characteristics were controlled. .Additionally this appeared to suggest that what had made this a significant relationship was the effect which planning had on the relationship. The use of the manager's experience as a source of CM contract information.(MANGREXP) showed a significant t-value when its relationship to completing the job by the owner's original date had the effects of both environmental and 133 planning characteristics controlled. The t-value was not significant when only environmental characteristics were controlled. This appeared to indicate that not only was the manager's experience important, in a positive manner, but the effect of the planning characteristics was important also. This supported the findings of the ASCE (1975). Both the percentage of preconstruction phase employees who are permanent (PRECONEM) and the use of professional journals as a source of CM contract management information (PROFJOUR) maintained relatively constant r values regard- less of which other characteristics was controlled. The first was a positive relationship while the second was inverse. This meant that for these two company characteris- tics the effect of environment and planning were negligible. The higher the percentage of preconstruction phase employees who were permanent employees the better the CM companies surveyed appeared to do in completing the job on or before the owner's original date. This finding support the argument of Fox (1976), among others, that being struc- tured as a team was not enough. They (the team) needed to be able to work as a team and could only come from having worked as a team previously. The use of professional journals as a source of CM contrast information maintained a relatively constant nega- tive r during both partial correlation procedures. This appeared to indicate that, although unaffected by environ- mental or planning characteristics, the companies in the 134 survey got their CM contract management information from other sources. Conclusions Planning characteristics had an important impact on the relationships of both the number of full time employees and the use of a manager's experience as an information source to completing the job on or before the owner's original date. This data also appeared to support the argument of Fox (1976) mentioned previously. WW Set_Durino_Ercconstruction_21annino Discussion The effects of planning characteristics were important to the relationship of the total number of CM contracts completed in the last five years (NUMCMCTS) to completing the job on or before the date set during preconstruction planning (JOBPREDTW. ‘When environmental characteristics were controlled alone the t-value was not significant. ‘When both environmental and planning characteristics were con- trolled the t-value was significant and this indicated that some interaction of planning characteristics had an impor- tant effect. This finding indicated that the more CM contracts a company had completed in the last five years the larger percentage of projects they completed on or before the date set during preconstruction planning. Also suggested was 135 that the use of some combination of the planning character- istics investigated was important to the ability of the CM company to meet that date. This supported the majority of the literature reviewed (Goldhaber, et al., 1977; GSA, 1975; AGC, 1982: Tatum, 1979; Clough and Sears, 1979) in that the experience gained in planning a larger number of projects appeared to be a major factor in completing the project on or before the date set during preconstruction planning. As was found for completing the job on or before the owner's original date (JOBOWNDT) the relationship of the percentage of preconstruction planning employees who were permanent employees (PRECONEM) to completing the job on or before the date set during preconstruction planning was unaffected by either environmental or planning characteris- tics. This provided additional support for the views of Fox (1976). Conclusion For the data collected planning had a positive impact on the relationship between the number of CM contracts completed in the last five years (NUMCMCTS) and the percent- age of jobs completed on or before the date set during preconstruction planning. Additionally, neither environ- mental nor planning characteristics had an observable effect on the relationship of percentage of preconstruction plan- ning employees who were permanent employees to competing the job on or before the date set during preconstruction plan- ning. The formal updating of the dates set in the company's plan for the preconstruction phase (PLNUPDT), in its rela-e tionship to projects with a final cost equal to or less than the owner's original budget (CSTOWNBG), showed a significant difference in the value of its r when organizational charac- teristics were controlled and when organizational and envi- ronmental characteristics were both controlled. Both of these were inverse relationships which meant that those companies who updated their planned dates more frequently appeared to meet the owner's original budget more often than those companies who were less frequent in their updates. The fact that this relationship changed from not being significant, to being significant in both cases, indicated that, when the effects of either organizational characteris- tics alone or company and environmental characteristics together were controlled, frequent updating of planned dates had an important positive impact on the ability of a CM company to complete a project with a final cost equal to or less than the owner's original budget. This finding supported Densmore and Burgoine (1981) in their contention that if proper planning were achieved the project would be completed with the best use of available resources and would be successful. Additionally, this 137 supported the Business Roundtable (1983) in their finding that, through better planning, construction time on most projects could be reduced by 10% and consequently reduce the costs. ~ After the removal of the effects of organizational characteristics the r value of decisions affecting planning, made by the CM (DECBYCM), stayed relatively constant when the effects of organizational and environmental characteris- tics were also controlled. This appeared to indicate that the interaction of organizational and environmental charac- teristics'were having a masking effect on the importance of the CM making planning decisions and its relationship to the ability of a CM firm to meet the owner's original budget. Adrian (1981) stated that being involved with a project throughout design, construction and implementation placed the CM in a position to minimize the project's time and cost. This finding of increased decisions by the CM appeared to support that argument. Conclusions The analysis of the data collected indicated that fre- quent updating planned dates enabled a CM company to more often complete a project at or under the owner's original budget. In addition, it appeared that increasing the deci- sions made by the CM, which affected planning, also in- creased the ability of the CM company to meet the owner's original budget. The use of “risk analysis“ in preconstruction planning (RISKANL) showed a significant difference in its relation- ship to final cost equal to or less than the final pre-bid estimate (CSTPREBD) when the effects of organizational and environmental characteristics were controlled. Its inverse relationship indicated that the less those companies sur- veyed used it the more likely they were to complete the project with a:final cost equal to or less than the final pre-bid estimate. The fact that this planning characteris- tic became significant only after both organizational and environmental characteristics were controlled indicated that it was the environmental or job characteristics that had the major effect. Although one of the stated services which a CM firm should offer (Adrian, 1981: AGC, 1982; ASCE, 1976) for these companies it appeared that the majority of the jobs (owners) did not require it. .For this study a factor may have been that the companies surveyed were all relative- ly small (Appendix E) and that “risk analysis“ appeared to be associated with jobs done in the public sector, which in this study, were done by large companies with the presumably large resources needed to perform “risk analysisJ' Conclusions The use of “risk analysis,“ for the companies surveyed, appeared to decrease with the increased ability of a CM 139 company to complete a project with a final cost equal to or less than the final pre-bid estimate. JoDLComolctsLQLoLBsforc QunsLLsCLicinaLDatc Discussion The use of computerized estimating techniques in pre- construction planning (CMPEST) displayed a significant change in its relationship to jobs completed on or before the owner's original date (JOBOWNDT) when both organiza- tional and environmental characteristics were controlled but not when organizational characteristics were controlled alone. ‘This indicated, for these companies, that the job required the use of computerized estimating techniques rather than any internal company requirement. The positive relationship indicated that jobs on which computerized esti- mating was used more often met owner's original completion date than those on which it was not. Although these findings supported Adrian (1981) and Clough and Sears (1979), they more fully supported the Business Roundtable (1982) finding that computer estimating systems were not fully utilized by the construction indus- try. The data in the present study appeared to indicate that the use of computerized estimating was more a function of the job than of any policy within the CM company itself. Logic would seem to indicate that if a CM company had the system available it would be used for all jobs, regardless of any special characteristics of the individual job. 140 Setting dates, during conceptual planning, for complet- ing the design phase (SETDTDES) showed a significant change in r values when either organizational or organizational and environmental characteristics were controlled. This rela- tively constant negative relationship appeared to be affect- ed by some combination of organizational characteristics and not by environmental characteristics. The data indicated that these companies were better off not to set dates for completing the design phase. Setting them led to not com- pleting the job by the owner's original date. This same relationship was found to be true for completing the job by the date set in preconstruction planning also. (See next section.) Conclusions The conclusion supported by this data was that using computerized estimating was a function of environmental (job) requirement rather than internal CM company policy and that on jobs where it was used it had a positive impact on completing the job on or before the owner's original date. Additionally, setting dates, during conceptual planning, for completing the design phase had a negative influence on meeting the owner's original completion date. WW Sct_DuLino_2rsconstruction_Elanninc Discussion The use of “risk analysis“ during preconstruction plan- ning (RISKANL) showed a significant difference in its 141 relationship to jobs completed on or before the date set during preconstruction planning (JOBPREDT) when both organi- zational and environmental characteristics were controlled. This significant t-value was not evidenced when only organi- zational characteristics were controlled. This indicated, as for its relationship to meeting the final pre-bid esti- mate, that this planning characteristic was affected most by environmental or job characteristics and not any internal company characteristic. It also showed the same inverse relationship. For a full discussion of the possible expla- nation for this, see the section of this study entitled “Planning Characteristics Related to Meeting Owner Goals: Jobs Completed On or Before Date Set During Preconstruction Planning.“ ‘ The data collected also indicated that the negative aspect of using “risk-analysis“ was in some way a function of goals set within the CM company. IWLhad a significant negative relationship with the two measures of effectiveness linked most directly with the CM company (CSTPREBD and JOBPREDT) but had no significant relationship with those linked most directly to the owner (CSTOWNBG and JOBOWNDT) when both organizational and environmental characteristics were controlled. This seemingly contradicted Adrian (1981) who argued that this procedure was of benefit to the owner rather than the CM company. As was indicated by the data for meeting the owner's original date, the setting of dates, during the conceptual 142 planning, for completing the design phase (SETDTDES) had a significant t-value in its relationship to completing the job on or before the date set during preconstruction plan- ning when either organizational characteristics alone or when both organizational and environmental characteristics were controlled. The data indicated that this planning characteristic's negative relationship was affected by some combination of organizational characteristics and not by environmental characteristics. Conclusions The data collected and analyzed in this study indicated that those companies surveyed did not use “risk analysis“ to any extent and that by not using it they were better able to meet.the>completion-date set during preconstruction plan- ning. .Additionallyu the use of this planning characteristic was a function of some interaction of organizational charac- teristics as opposed to environmental characteristics. The setting of dates for completing the design phase, during conceptual planning, was indicated by the data collected by this study to impede the ability of the CM company to com- plete the project on or before the date set during precon- struction planning. DiscussioLSummarx SimolLCorrclations As indicated by Tables 4.5, 5.3, and in the discussion of the results, the larger, more experienced companies 143 Table 5.3 Summary of Organizational Characteristics Related to Planning Characteristics Organizational Total Planning Characteristics Related Characteristica Positive Relation Inverse Relation - Experience YRSNBUS g 2 YRSNHSE 3 l NUMCMCTS a 1 - Size NUMBRN CH 2 l NUMEMPFL 3 1 VALCMCTS 3 1 PRECONEM 4 g VOLWKPRS 4 g — Information PROFJOUR 1 fl SEMNHOUS fl 1 SEMBYPRO 1 2 INTERACT 1 2 MANGREXP 5 l - Organization COORGAN 2 3 aThese organizational characteristics are not rank-ordered. The data collected did not support that type of conclusion. 144 tended to utilize more of the planning characteristics which this study investigated than did the smaller, less experi- enced CM firms. This study also found that the use of outside sources of CM contract information was inversely related to the majority of the planning characteristics investigated. Those companies surveyed relied most heavily on the manager's own experience. Tables 4.6 and 5.4 indicate that the larger CM con- tracts, at least for the surveyed companies, appeared to be in the public and not the private sector. Additionally most of the owners for these larger contracts required the use of a network based scheduling system. ‘These scheduling systems did not appear to be generally required by the private sector owners. The larger jobs were also found to be those which, for the companies surveyed, required the use of more sophisti- cated project controls and the use of more varied planning (Tables 4.7 and 5.5). W Of the simple hypotheses which this study investigated, seven (58%) were supported by the data while five (42%) were not supported by the data. The majority of those found to be supported by the research were those that related, in some form, the size of the CM company to increased effec- tiveness, rather than the use of some planning characteris- tic. The major exception to this was the proposal of design and construction alternatives by the CM. This was related 145 Table 5.4 Summary of Organizational Characteristics Related to Environmental Characteristics Total Environmental Characteristics Related Organizational Characteristic Positive Relation Inverse Relation - Experience YRSNHSE l l NUMCMCTS 1 g - Size NUMBRNCH 1 l NUMEMPFL 2 fl VALCMCTS 2 l PRECONEM 1 {5 VOLWKPRS 2 fl - Information SEMBYPRO g 1 INTERACT 1 fl MANGREXP l l - Organization COORGAN 1 1 aThese organizational characteristics are not rank-ordered. The data collected did not support that type of conclusion. 146 Table 5.5 Summary of Environmental Characteristics Related to Planning Characteristics Total Planning Characteristics Related Environmental Characteristics Positive Relation Inverse Relation Value of smallest 1 2 project completed in last five years Value of largest 2 1 project completed in last five years Network based 2 4 scheduling system required by owner CM hired prior to l 0 hiring of A-E Percentage of 2 3 private jobs, as opposed to public jobs aThese environmental characteristics are not rank-ordered. The data collected did not support that type of concluSion. 147 positively to all measures of effectiveness except complet- ing the job by the owner's original date (See Table 4.9). EartiaLCorrolations DrcanizationaLCharactcristicLleatcd Lil—MW As indicated by Figure 5.1, when both environmental and planning characteristics were controlled the data indicated that planning was affecting the relationship of the value of CM contracts completed (last five years) (VALCMCTS) to final cost equal to or less than the owner's original budget (CSTOWNBG). Planning also had an impact on the relationship of years in the construction industry (YRSNBUS) to final cost equal to or less than the final pre-bid estimate (CSTPREBD). ‘This impact of planning was also seen in the relationship of number of full time employees (NUMEMPFL) and the use of manager's own experience (MANGREXP) to completing the job by the owner's original date (JOBOWNDT). Planning, as indicated by the data, has an effect on the relationship of the number of CM contracts completed in the last five years to completing the job on or before the date set in preconstruction planning. All of these effects were seen only after controlling for the environmental and planning characteristics and not when controlling for only environmental characteristics. This indicated that planning, and not environmental, charac- teristics were affecting these relationships. 148 Measure of Organizational Effectiveness Characteristic Effected Relationship Value of total CM Final cost =< Inverse contracts completed owner's original in last five years budget Years in the Final cost =< Inverse construction final pre-bid industry estimate Use of manager's own Job completed on Positive experience as a or before owner's source of CM contract original date management information Total number of CM Job cdmpleted on Positive contracts completed in last five years or before date set during precon- struction planning Figure 5.1 Organizational Characteristics Whose Relation- ship to Meeting Owner's Goals Was Affected by Planning 149 Planning_Char.actsristics_Rslatsd to_Mcstins_ansr_Coals As indicated by Table 5.6 environmental (job) charac- teristics were found to be the important factors influencing the use of “risk analysis“ (RISKANL) and computerized esti- mating techniques (CMPEST) in their relationships to the measures of effectiveness. This was shown by the action of the t-values when, in addition to controlling organizational characteristics, environmental characteristics were con- trolled also. Updating the dates set during preconstruction planning (PLNUPDT) and setting dates for the completion of the design phase during conceptual planning (SETDTDES) were affected by both organizational and environmental characteristics. Wis This study was designed to investigate the effects of planning, during the preconstruction phase of a CM job, on the effectiveness of the CM company in meeting owner goals. More specifically, it was an attempt to determine the rela- tive impact of planning, on CM company effectiveness, when compared to the impact of the CM company‘s organizational characteristics and the job environment in which the company worked. Although some aspects of planning, in general, were indicated as affecting the ability of the CM company to meet the goals of the owner the results of the study appeared to follow no clear pattern. The factor that did stand out in a i150 unacceum scuu nosuumcoooxm mcuxsc uom ouec ecu occucn anxnxaece o>wucmoz ¢\z xxx no so coumdmsoo coo xmfixs no on: one menaceam ocucccao cOwu Assumoocoo ocuxsc Iosxumcoocuo ocwusc manna cownmc 0:» umm mumc ecu ouOMon no coduoassoo ecu u>.uumoz o>.umeoz xxx xxx no so emum.asoo son now mouse mauuuom mcwcccnm Accumcocoo ocwusc oucc Hecwmwuo omens cmwncc ecu n.xocao mucuon no sawucaaaoo ecu e>wucmmz o>wuumoz xxx xxx x0 co cmumumeoo non new mmucc unwuuom ncsvxccoou cuec Accumuuo ocfiumsuunc . m.xoczo ououon conwuousosoo c>wuwuom <\z xxx no so cmuonmsoo non no on: one .uno cannons Accwu .mwnaaece xmwus o>uuemmz ¢\z xxx vu unoo Assam no on: use mcwchHd uomcsn cOwuosxumcooous Hecdowxo n.uoc30 mcwusc uon neuac o>.uaooz o>.uomoz xxx xxx .- uuoo .m:.m muons mauuuoas aouueuueuoexeso auxunxuouoeuecu nouunwxouoexcsu moxunuuouoexecu oa coueamm Ouuuwuouoeuenu ueucolcouu>cm auscuueuxcomuo Heucoscouw>cm floccuueuxcemuo ocwcccam dwaaco.uo.oz xn concedes mOwumemuocumno Hmucmesoxfi>cm u0\ccm floccuumeccmxo >9 cmuowmwd mo: macoo m.xmc30 mcxuomz ou mwcchxumHmm mmocz monumflxouomumco moxccmHm o.m manna 151 discernible manner was that-the success of a company in meeting an owner's goals, as measured by this study, was more the result of an interaction of organizational and environmental characteristics than the clear cut action of the planning characteristics investigated. That is not to say that planning does not have a beneficial impact, logic says that it does, but that the relationship which specific planning characteristics have with success in meeting an owner's goals was unable to be delineated by this research. RsoomsndatioanoLEuturLssscarch Some questions which arose during the course of this study were unable to be answered either through the data collected in the study or through the available literature. The areas to which these unanswered questions pertain need to be investigated further in order that the underlying relationships may be better understood. The areas suggested for further study, in no particular order of importance, are: - The interaction of the decision making process be- tween the owner, CM, and A—E under CM contracts. - Sources of CM contract management information, other than managers' experience. — The use of goal setting in CM companies. - Is the effective use of CM limited to any certain range of project sizes/values? - Why do younger CM companies appear to meet final pre-bid estimates better than more established ones? 152 - How wide spread is the use of computerized estimat- ing in the CM field? A - Why did the use of “risk analysis“ appear to be negatively related to goals set internal to the CM company and positively related to externally linked goals? Finally, the pattern of correlations among the effec- tiveness measures and the other results suggests that effec- tiveness in CM companies is multidimensional, and involves both internal-external and date-cost dimensions. These study results lend credence to the writings of Mintzberg (1979), Miles (1980), and Jurkovich (1974) reviewed in Chap- ter 2. The organizational, environmental, and planning characteristics that are related to one aspect of effective- ness are not usually associated with the other aspects” This suggests that future research is needed to investigate (l) the relationships, including potential conflicts, among dimensions of effectiveness in CM firms, (2) other dimensions of effectiveness, including profitability and growth, and (3) the specific types of organizational, envi- ronmental, and planning characteristics associated with each aspect of effectiveness. Meanwhile, these results suggest that caution may be needed on the part of writers-~and readers--of literature who assume effectiveness to be uni- dimensional, and who make blanket statements about the need for, and positive effects of, aspects of the management of CM projects and firms. 153 Summon! This chapter discussed the significant results of the research, as indicated in Chapter 4. Also noted were the conclusions drawn by the researcher as the consequence of those results. Remarked on in the discussions presented in this chap- ter was whether or not the results of this research sup- ported or contradicted past research or information pre- sented by CM literature. Finally, this chapter recommended areas for future research and a warning of the dangers of drawing unwarranted conclusions from either this study or the writings of others pertaining to CM. BIBLIOGRAPHY BIBLIOGRAPHY Adrian. James J. Cut The Construction Management Process. (Reston Publishing Company, Inc., Reston, Virginia, 1981), p. 2, 9, 10, 15, 16, 26, 27, 47, 132. Barrie, Donald S. and Paulson, Boyd C., Jr. “Professional Construction Management.“ Journal of the Construction DasisomRroceedinos of the American Societxof ofCicil W, Vol. 102, No. C03, Sept. 1976, pp. 427- 428. Bhandari, Narindar. “Interaction of Information Flow with (:14 Systems,“ Journal of the Cicil Engineers- Eroceedincs of the American Society of Vol. 104, No. C03, September 1978, p. 263. Bosche, Richard V. “Rapporteur's Report,“ Proceedings of. Symposium and the CID lit-.65 on of Construction, U.S. Academy of Science, Washington, D.C., 19‘20' May 1976. Brickner, William H. and Code, Donald M. The 21 Broom (Winthrop Publishers: Cambridge, MA, 1977). Builders' Exchange. Construction Bum Guido, 1351 East Jefferson, Detroit, Michigan, 1982, pp. 85-87. Burger, A. M. and Halpin, D. W. “Organizational Concepts for Control of Large Construction Projects,“ Proceed: ings of the CID 21:15 Sxmnosium on and Manaoement of Construction. 0.8- Academy of Science- Washington, D.C., 19—20, May 1976. Burgess: Rose: A. Management in the Construction Industrx- (The MacMillan Press LTD, London, England, 1979). Emma. Tom and Stalker. G. M. The Management of Innotation (Travistock: London, 1961). Campbell, John N. “Organizational Effectiveness,“ Qrsaniza: , S. Lee Spray, Ed., (The Compara- tive Administration Research Institute: Kent State University, 1976), p. 32, 33. Choromokos, James and McKee, Keith E. “Construction Produc- tivity Improvement.“ Journal of. the Construction H.111: sion. Proceedincs of the American Societx of Cixil W, Vol. 107, No. C01, March 1981, p. 40. 154 155 Clough, Richard H. and Sears, Glenn A. Construction Project Management and Ed... (John Wiley 8 Sons: New York, 1979), pp. 21, 64. Cohen, J. and Cohen, P. ADDLied Multiple W lation Analxsis for the Behaxioral Sciences Second Edition (Lawrence Erlbaum Associates: Hillsdale, N.J., 1983). “Construction Management: The Man Behind the Concept,“ 110 114 W i Eguinment- Vol. 54, April 1972, pp. " 0 “Construction Management: The Theory Behind the Man,“ Con: Methods :- Eguioment- Vol. 54. March 1972. pp- 72-75. Deatherage. George E. Construction Company Organization Management (McGraw-Hill: New York, 1964), pp. 18-19. Diepeveen, W. J. “Project Management Through Building 11.5.. Academe of Science... . 0.0-. 19-20- Hay 1976- Vol. I, pp. 1136, I137, 1139. Dinsmore, Alexander F. and Burgoine, David. “Management Process: Planning and Control,“ Issues in W Journal of Professional Actieities. Proceedings of the American Societx of Citil Engineers. Vol. 107. No. 811- January 1981, pp. 269, 272. Dioguardi, Gianfranco. “Macrofirms: Construction Firms for the Computer 89c.“ Journal of Construction Engineering and Management... Proceeding of the American Societx of Cizil Engineers, Vol. 109, No. 1, March 1983, pp. 13- 2 Erickson, Carl A. and O'Conner, Michael J. Construction Contract Risk Assignment, U.S. Army Corps of Engineers Construction Engineering Research Laboratory Report No. CERL-TR-P—lOl, June 1979, p. 9. Fox, Arthur J. Keynote Address, Proceedings of the C13 21:5,: on organization and Management of Construc: tion, U.S. National Academy of Science, Washington, D.C., 19-20, May 1976. Vol. II, pp. 25-27, 32. Foxhall. William 13.- Professional Construction Management and Project Administration. (Architectural Record and the American Institute of Architects, New York and Washingtion, D.C., 1972), p. 6. 156 Galloway, Patricia and Nielsen, Kris. “Schedule Control for PCM Projects,“ Journal at the Construction Dixision. Proceedings of the American Societx of Cixil Engineers. Vol. 107, No. c02, June 1981, p. 324. General Services Administration. The CSA System for Con: struction Mangement, 18th S- F Streets, N.W., Wash- ington, D.C., April 1975, Attachment, p. 6. Goldhaber, Stanley and Jha, Chandra K. and Macedo, Manuel Cu Jr. Construction Management Principles Practices (John Wiley 5- Sons: New York, 1977). PP. 15, 16, 107, 288, 289. Guevara, Jose M. and Boyer, LeRoy T. “Communication Prob- lems With Construction.“ Journal of the Construction Disision. Proceedings of the American Societx of Ciril Engineers, Vol. 107, No. C04, December 1981, pp. 551, 554. Halpin, Daniel W. and Woodhead, Ronald W. Construction Management. (John Wiley & Sons: New York, 1980), pp. 23, 25, and 131. Heery, George T. “Construction Management Defined,“ The Engineer. No. 430, March-April 1974, p. 85. Herold, David M., “Long-Range Planning and Organizational Performance: A Cross-Validation Study,“ Academy of Management Journal. March 1972. Hofer, Charles W. and Schendel, Dan. Strategy. mini-1131219113. Analxtical Concepts (West Publishing Company: St. Paul, Minnesota, 1978), p. 2. Jurkovich, Ray. “A Core Typology of Organizational Environ- ments.“ Administratice Science Quarterlx. 19. 1974. P- 382. Klein, Stuart M. and Ritti, R. Richard. understanding Cr; ganizational Beharior (Kent Publishing COHIIWW8 308- ton, Massachusetts, 1984). PP. 454-469. Lefkoe. u. R. TheCrisisinConstructioni ThereIsAn Answer (The Bureau of National Affairs, Inc.: Washing- ton, D.C., 1970), p. 136. Lindstrom, Vernie G. “CM's Expanding Market,“ Constructor, September 1982, pp. 24-27. 157 Logcher, Robert D. and Levitt, Raymond D. “Human Informa- tion-Handling Capacity As A Factor In The Design of Project Control Systems,“ Proceedings of the C18 us Qrganizationand on of Construc: tion, U. S. Academy of Science, Washington, D .C., 19- -20, May 1976, Vol. I, pp. II- -136, II- 146. Macedo, Manuel C., Dobrow, Paul V., and O'Rourke, Joseph J. Yalue Management for Construction (John Wiley :- Sons: New York, 1978). P. 13. McGough, Elise Hosten. “Scheduling: Effective Methods and Technique8.' Journal of the Construction Dixision. Proceedings of the Engineers. American Societx of Cieil Vol. 108, No. C01, March 1982, pp. 75, 83, 84. Miles, L. D. TechniguesoflalueAnaleisandflngineering (McGraw-Hill: New York, 1961): P0 29. Miles. Robert H.- Macro Organizational Behacior. (Goodyear Publishing Company: Santa Monica, California, 1980), p. 22, 223, 224. Mintzberg. Henry- The Structuring of organizations. (Pren- tice-Hall: Englewood Cliffs, N.J., 1979) PP. 305-467, 268. Pilcher, Roy. “Rapporteur's Report,“ Proceedings of the CIA 11:55 ammonium on Qrganizationand Management of Construction, U.S. Academy of Science, Washington, D.C., 19-20' May 1976' V01. II, Pp. 31-41, 43-44, 49. Rad, Parviz F. and Miller, Marion C. “Trends in Use of Construction Management,“ Journal of the Construction Dirision. Proceedings of the American Societx of Cisil Engineers, Vol. 104, No. CO4, December 1978, pp. 515- 523. Silverman, Robert L. “A Multi-Discipline Time Approach to Building Construction,“ Proceedings of the CIP Weds, on Qrganizationand Management of Construc: tion, U. S. Academy of Science, Washington, D. C., 19- ~20, May 1976, Vol. I, pp. II-246 - II- 252. Sloma. Richard 8. Box to Measure Managerial Performance. (MacMillan Publishing Company, Inc.: New York, 1980), pp. 65, 66. for the Social Sciences. Ed. Bowman. Kenneth J. and Cahill, Matthew. (McGraw-Bill: New York, 1975), Pp. 1’ 194' 280' 302. (“r 158 Steers, Richard M. organizational Effectiuenessr A Eehax: ioral lieu, (Goodyear Publishing Company: Santa Moni- (13;; California, 1977): PP. 26, 27, 42, 43, 136, and Subcommittee on Construction Management Organization and Evaluation of the Committee on Professional Construc- tion Management of the Construction Division, American Society of Civil Engineers. “Professional Construction Management Services.“ Journal of the Construction Diri: sioni Proceedings of the American Societx of Ciril Engineers, Vol. 105, No C02, June 1979. PP. 139-156. Tatum, Clyde 8. “Evaluating PCM Firm Potential and Perform- ance.“JournalortheConstructionDieision.-.Proceed: ingsoftheAmericanSocietrofCixilEngineers. Vol. 105, No. C03, Sept. 1979, pp. 239- 251. The Associated General Contractors of America, 1976, Con; struction Mangement Control Process. Washington. D.C. The Associated General Contractors of America, March 1979, Construction Management Guidelines. Washington. D.C. The Associated General Contractors of America, 1982, owner Guidelines for Selection of. a Construction Manager. Washington, D.C. The Business Roundtable, 1983. Modern Mangement W A Construction Industrx Cost Effectiteness Project Be: pm, New York, New York, p. 2, 16-18. The Business Roundtable, 1983. More Construction for the Monexi Summarx Resort of the Construction Industry CostEffectireness Project. New York, New York, pp. 11- 13, 17, 18, 29, 30. Thompson, J. D. and McEwen, W. J. “Organizational Goals and Environment." American Sociological 33.11.31: 1958. PP- 23-30. Thune, Stanley and House, Robert, “Where Long-Range Planning Pays Off.“ Business Horizons. August 1970. P- 33- Ziegenhagen, Deuard A. and Bowlby, George. Techniques for Political; Analgsis, (Bolbrook Press: Boston, 1971), {k APPENDICES APPENDIX A List of Construction Management Contractors APPENDIX A List of Construction Management Contractors The A. M. E. Group, Inc. 1825 Brinston Ave. Troy, MI 48084 ASR Multi Construction, Inc. 5600 Crooks Rd., Suite 200 P.O. Box 10 Troy, MI 48099 Adair-Chaldecott Construction Co., Inc. 4027 E. Nine Mile Rd. Warren, MI 48091 Amurcon Corp. 26555 Evergreen, Suite 1717 Southfield, MI 48076 A. J. Anderson Construction Co. 21044 Kelly Rd. East Detroit, MI 48021 Atomic Construction, Inc. 20043 W. Ballantyne Ct. Grosse Pte. Whods, MI 48236 Geo. W. Auch Co. 3646 Mt. Elliott Ave. Detroit, MI 48207 Barton-Malow Co. 13155 Cloverdale Oak Park, MI 48237 Brown-Schroeder & Co. Box 27 Richmond, MI 48062 Webster Buell 27630 Southfield Rd. Lathrup Village, MI 48076 H. F. Campbell Co. 9301 Michigan Ave. Detroit, MI 48210 Oscar J. Chapaton 39288 Dodge Pk. Rd. Sterling Hts., MI 48078 Chapoton General Contracting Co., Inc. 32625 W. Seven Mile Rd. Livonia, MI 48152 The Christman Co. 408 Kalamazoo Plaza Box 14120 Lansing, MI 48901 The Christman Co. G-3512 W. Bristol Rd. Box 248 Flint, MI 48501 Christopher Construction Co. 8345 Lynch Rd. Detroit, MI 48234 Clark Construction Co. P.O. Box 40087 Lansing, MI 48901 Edward Colbert/Systems 237 N. Woodward Birmingham, MI 48011 Collins & Catlin, Inc. P.O. Box 529 Port Huron, MI 48060 Comprehensive Management Services, Inc. (CMSI) 220 W. Congress Detroit, MI 48226 Construction Management, Inc. 21800 W. Ten Mile Rd. Southfield, MI 48075 Walter L. Cause 8 Co. 12740 Lyndon Ave. Detroit, MI 48227 Cunningham-Limp Co. 1400 N. Woodward Birmingham, MI 48011 D. J. R., Inc. 227 Iron Detroit, MI 48207 R. E. Dailey 8 Co. 19200 W. Eight Mile Rd. Southfield, MI 48075 Ken Daly General Contractor, Inc. 1520 N. woodward, Suite 107 Bloomfield Hills, MI 48013 Danic Co. 16338 Andover Dr. Fraser, MI 48026 Darin & Armstrong, Inc. 23999 Nerthwestern Hwy. Southfield, MI 48075 Henry de Koning Construction Co. 2459 S. Industrial Hwy. Ann Arbor, MI 48104 Dumas Concepts in Building, Inc. 9215 Michigan Ave. Detroit, MI 48210 J. L. Dumas & Co. 1000 Long Blvd., Suite 8 Lansing, MI 48910 R. W. Edgar 8 Co. 2852 Benson Detroit, MI 48207 Elgin Builders, Inc. 21415 Civic Center Dr. Suite 211 Southfield, MI 48076 Elzinga & Volkers, Inc. 86 E. 6th Holland, MI 49423 The Emanuel Co. 14385 Wyoming Ave. Detroit, MI 48238 Etkin, Johnson & Korb, Inc. 10111 Capital Ave. Oak Park, MI 48237 Felker Construction Co. 8226 Michigan Ave. Detroit, MI 48210 Ferguson, Hogle, Brassell Constr. Co. (J. A. Ferguson Constr. Co.) 32715 Folsom Rd. Farmington, MI 48024 Fordon Construction Co. 28000 Middlebelt Rd. Farmington, MI 48018 J. A. Fredman, Inc. 735 S. Paddock St. Pontiac, MI 48053 Freeman-Darling, Inc. 20337 Middlebelt Rd. P.O. Box 66 Livonia, MI 48152 The Garrison Co. 24400 Indoplex Circle Farmington Hills, MI 48018 E. Gilbert & Sons, Inc. 45887 Mound Utica, MI 48087 Granger Construction Co. 6267 Aurelius Rd. P.O. Box 22187 Lansing, MI 48909 R. C. Hendrick & Son, Inc. P.O. Box 1886 427 Atwater St. Saginaw, MI 48605 Elise Hosten-McGough & Associates 2809 Saddlewood Rd. Orchard Lake, MI 48033 Irving-James Corp. 26561 W. Twelve Mile Rd. Suite 207 Southfield, MI 48034 Paul H. Johnson, Inc. 225 Merrill Birmingham, MI 48011 F. J. Jones 5 Co. 24333 Southfield Rd. Suite 104 Southfield, MI 48075 Kapila Contracting Co., Inc. 7439 Middlebelt Rd. Suite 2 West Bloomfield, MI 48033 Kingston Contractors, Inc. 19675 W. Ten Mile Rd. Southfield, MI 48075 D. M. Kitchen Building Co. 1925 Heide St. Troy, MI 48084 Robert J. Koepsell Building Co. 23780 Mack Ave. St. Clair Shores, MI 48080 Matthew Lalewicz, Inc. P.O. Box 847 Bloomfield Hills, MI 48013 D. W. Lewis & Co. 24655 Southfield Rd. Suite 100 Southfield, MI 48075 MSI Construction Managers 23309 Plymouth Rd. Detroit, MI 48239 K. H. Mahnick & Associates, Inc. 5700 Orion Rd. Rochester, MI 48064 Manix Inc. 6785 Telegraph Rd. Glover Bldg., Suite 101 Birmingham, MI 48010 F. H. Martin Construction Co. 22700 Wood St. St. Clair Shores, MI 48080 Master Plan Construction Div. of Leo's Corp. 555 Oliver St. Troy, MI 48084 Miller-Davis Co. P.O. Box 2367 1029 Portage St. Kalamazoo, MI 49003 Edward V. Monahan, Inc. 21321 Kelly Rd. East Detroit, MI 48021 J. G. Morris Co. 8600 Church Rd. Grosse Ile, MI 48138 Newmyer Contracting, Inc. 1700 N. Opdyke Rd. Pontiac, MI 48057 Nerth Construction Co. 401 N. Jackson P.O. Box 116 Jackson, MI 49204 R. L. Owen Co. 7771 Auburn Rd. Utica, MI 48087 Palmer-Smith Co. 20840 Southfield Rd. Suite 200 Southfield, MI 48075 Paragon Construction Corp. 12433 E. Eight Mile Rd. Warren, MI 48089 Parliament Construction Co. 30200 Telegraph Suite 251 Birmingham, MI 48010 K. Pemberton Construction Co., Inc. 12641 Stark Rd. Livonia, MI 48150 Joseph Pope Construction Co. 477 N. Dixie Hwy P.O. Box 983 Monroe, MI 48161 Prater, Wells & Associates Ltd. 19847 James Couzens Hwy Detroit, MI 48235 Pyramid Construction Co., Inc. 31471 Northwestern Hwy. Farmington Hills, MI 48018 Remer + Webber Construction Programmers 3260 Coolidge Hwy. Berkley, MI 48072 Roberts & Dudlar, Inc. 20525 Freemont Livonia, MI 48152 A. z. Shmina & Sons Co. 13000 Newburgh Rd. P.O. Box 2129 Livonia, MI 48151 Smith & Andrews Construction Co. 13100 Northend P.O. Box 3845 Oak Park, MI 48237 Spence Brothers 417 Mo Coskry St. P.O. Box 1568 Saginaw, MI 48605 Strobl Construction Co. 5612 E. Davison Ave. Detroit, MI 48212 Talbot & Meier Inc. 1000 Larchwood Detroit, MI 48203 Taubman Construction, Inc. 3270 W. Big Beaver Rd., Suite 300 P.O. Box 3270 Troy, MI 48099 Time Construction Co., Inc. 2526 Bretby Troy, MI 48098 True Management, Inc. 8344 Hall Rd. Utica, MI 48087 Turner Construction Co. 932 Fisher Bldg. Detroit, MI 48202 Utley—James, Inc. 1100 Opdyke Rd. P.O. Box 1100 Pontiac, MI 48056 Robert Van Kampen Co. 12836 Fenkell Detroit, MI 48227 Aldinger Walbridge Co. 38099 Schoolcraft Livonia, MI 48150 Glenn E. Wash 8 Associates, Inc. 14541 Schaefer Detroit, MI 48227 Waterford Construction Co. 4511 Highland Rd. Pontiac, MI 48054 K. H. Wehner (P.E.) Engineering 8 Construction Consultants Holly, MI 48442 M. Weingarden Associates, Inc. 20900 Hubbell Oak Park, MI 48237 P. H. Williams a Son, Inc. 20070 Coryell Birmingham, MI 48010 Williams 8 Richardson Co., Inc. 10611 W. McNichols Rd. Detroit, MI 48221 woodland Construction, Inc. 30850 Groesbeck Roseville, MI 48066 APPENDIX B SURVEY INSTRUMENT MICHIGAN STATE UNIVERSITY WWW mum-mnem-m mum-communicate (”hm lurch 1984 Dear Construction Executive, I am doing Master's thesis research in the Building Construction Program of the Agriculture Engineering Department, Michigan State University. I would like to be able to identify those aspects of a company's pro-construction planning which contribute to organisational success is the field of CONSTRUC- TICI MANAGEMENT. The voluntary participation of your company in the study is important. A high rats of return is the survey will enable ms to better define those aspects of planning which are important to companies in the field of CONSTRUCTION MANAGI- MENT in Michigan. In return, on request. I will provide feedback to your company rogsrding results. no absolute anonymity and confidentiality of your response is guaranteed. Please do not put your name or identify your firm on the questionnaire. Upon receiving your completed questionnaire I will losd your response into the computer, and than destroy your questionnaire. Data will be aggregated across the entire sample only by such classifications as company size, ate. No indi- vidual company data will be used or made public. Even though your company may have other types of construction operation, this survey is targeted only to those projects which your company undertakes under a CONSTRUCTION MANAGEMENT form of contract. The term 'CONSTRUCTION MANAGEMENT' is used here as defined by either The American Society of Civil Engineers on- tha Associated General Contractors of America. mastions are asked about the characteristics of your company and the type of CONSTRUCTION MANAGEMENT pro- Jocts it undertakes, planning conducted during the pro-construction phase. and how your company measures its performance. I am hoping to have your completed questionnaire within two weeks. Should you have difficulty with this request or regarding the questionnaire, please do not hesitate to contact so. This research is totally supported by my own funds and not affiliated with a consulting firm or national organization. Sincerely, David A. Booths (517) 351-5571 Would you like a copy of the feedback report? Please telephone ms at 353-0101 or write. To assure you anonymity, please do not include a written request on the questionnaire you ram. usua-Wwwwmw 167 1158 company; Please otrnleuths answer’fhr each questicaLuhich best describes how.yn|, This section of the questionnamre asls qmssticas about the characteristics of your see your company in relationship to the questica. 1. Now many years has your coapany been offering its services, in some fora, to the construction industry? (1) 1-5 yrs (2) 6-10 yrs (3) 11-15 yrs (I) 16-20 yr! (5) over 20 yrs 2. Now many years has your coapany been offering CONSTNUCTION MANAGEMENT services as defined by the A.S.C.l. or the A.G.C.? (1) 1-3 yra (2) 1-6 yrs (3) 1-9 yrs (1) 10-12 yrs (5) over 12 yrs 3. Now aany years has your company had an inshouse design capability? (1) None (2) 1-5 yrs (3) 6-10 yrs (I) 11-15 yrs (5) over 15 yrs 3. Now aany branch offices, not including field offices, does your company have? (1) None (2) 1-5 (3) 6-7 (I) 11-15 (5) over 15 Hhat percent of your cospany's CONSTRUCTION MANAGEMENT projects are done: 5- in_Ninhiaan3 (1) o: (2) 1-253 (3) 25—505 (1) so-1sx (5) 75-1005 6. in.aid=laatacn_atatas3 (1) 0! (2) 1.25! (3) 25-501 (1) 50-151 (5) 75-100: 7- in_tha_cnntinantal_nnitad_§tataa3 (1) as (2) 1-253 (3) 25-501 (1) 50-751 (5) 15-1001 8. in_tha.liA..Canada..and.Hasicc? (1) o: (2) 1-25: (3) 25-501 (1) 50-7ss (5) 75-1001 9. Innld_lida? (1) o: (2) 1-253 (3) 25-501 (1) 50-751 (5) 75-1001 10. Now aany full time employees, excluding trades (carpenters, electricians, eth. does your company havs? (1) favor than 50 (I) 251 to 350 (2) 51 to 150 (5) over 350 (3) 151 to 250 11. 12. 13. 1'1. 15. 169 Now,many CW MANAGEMENT contracts has your conany completed in the last five years? (1) 1-10 {2) 11-20 (3) 21-30 ('1) 31-110 (5) Over 110 Nhat is the approxiaate total value. excluding real estate cost. of the new construction which your company has put-in-place under CONSTRUCTION MANAGEMENT contracts in the last five years? (1) Less than (2) 82.5-30 (3) 330-60 hill ('1) “0-90 sill (5) our 390 “.5 I111 lill Ill]. Nhat percent of those individuals whoa your coapany usually eaploys. during the pro-construction phase of a CONSTRUCTION MANAGEMENT project are m employ- ass? (1) 1... than (2) 20.101 (3) 10-60: (1) 50.801 ' (5) 00-1001 20: In today's construction dollar, what is the approxi-te volume of C.M. work which your company can handle g]; m tin, with your present workforce? (1) less than (2) O1-1O sill (3) $10-20 mill (I) $20-30 hill (5) over $30 $1 sill sill What percent of your cospany's in-place construction voluss (dollars). over the last five years, has been generated by CONSTRUCTION MANAGEMENT jobs? (1) 0-20! (2) 2140‘ (3) 111.603 (11) 61-80! (5) 81-1005 To what extent have you and your managers found the following to be useful as sources of intonation for aanaging your cospany's CONSTRUCTION MANAGEMENT contracts sore efficiently? 16. W 1 2 3 11 5 (Not at all ( Soaewhat ( Very useful) useful) useful ) 17'. Was). 1 2 3 11 5 (Not at all (So-awhat (Very useful) useful) useful) (Not at all (Souewhat (Very useful ) useful) useful ) 1370 Towhatextenthaveymandymrsanagarsfoundthefollcwingtobeusafulassources of information for unsging your company's CONSTRUCTION MANAGEMENT contracts more efficiently? (Cont.) 19. W 1 2 3 I) 5 (Not at all (Somewhat (Very useful) useful ) useful) 20-1Nanasaniaunxn_ssnanianca 1 2 3 '1 5 (Not at all ( Sosauaat (Very useful) useful ) useful) 21. If you had to characterise your company's design would you say it was organised along: 1 2 3 N 5 (a LINE organi- (a COMBINATION) (a STA" organi- sation) sation) NOTE: LINE refers to an organisational design where decisions on all projects are made by the highest executive in the organisation, and responsibili- ties for carrying out decisions are then delegated to employees. STA" refers to an organizational design where organisational authority is shared among several functional area managers, each of whom is responsible for his own area. COMBINATION refers to an organizational desin which is a blending of both LINE and STARE. This section of the questionnaire asks questions about the type of CONSTENCTIN MANAGlllTprojectsuichyourccqsnyundertahss. Plessscirclethsanswardlich bestdescribashcwnsssyou-ccqsnyisrelaticnehiptothauestics. 22. Nhat is the approximate dollar value, excluding real estate cost, of the m CONSTRUCTION MANAGEMENT project which your company has done in the last five years? (1) Lass than (2) ”ODE-1.5 (3) 81.5-5 sill (11) 85-10 sill (5) Over 010 .500! I111 '111 23. Nhat is the approximate dollar value, excluding real estate cost, of the 1m CONSTRUCTION MANAGEMENT projact which your company has done in the last five - years? (1) Less than (2) S1-1O mill (3) 810-20 sill (A) $20-30 mill (5) Over $30 $1 sill mill 171 . 2!. In your experience, once a CONSTRUCTION MANAGEMUT contract has been signed, what part of the time does your company have the major role in establishing team (owner, C.M., Architect-Engineer) co-anicaticn procedures? (1) Never (2) 1/3 (3) 112 (N) 2/3 (5) Always 25. Nhat portion of your company's CONSTRUCTION MANAGEMENT contracts require a net- work based scheduling system as a requirement, not an option, of the owner? (1) None (2) 1/3 (3) 1/2 (R) 2/3 (5) All 26. that part of the time is your company hired, under a CONSTRUCTION MANAGEMENT contract, prior to the Architect-Engineer being hired? (1) Never (2) 1/3 (3) 1/2 (11) 2/3 (5) Always 27. Nhat percent of your company's CONSTRUCTION MANAGEMENT jobs, over the last five years, were done for private, as opposed to public, owners? (1) OS (2) 1-25’ (3) 25-501 (11) 50-755 (5) 75-1003 nisuctiosofthsquutionnainashquesticuabcutthaplaminguhichycsrcos- pany does during the pre-constructicn phase of a CONSTRUCTION MANAGEMENT project. Pleuecirclethsananrwhichbestducribuhowmseeyourminnlmtics— ship to the mastics. 28. On what percent of your company's CONSTRUCTION MANAGEMENT jobs does on m M supervise the entire pre-construction phase of the project? 1 2 3 ‘1 5 (Never) (Rarely) (Sometimes) (Usually) (Always) 29. On what percent of your company's CONSTRUCTION MANAGEMENT jobs is the supervision of the entire pre-construction phase shared by a team? 1 2 3 N 5 (Never) (Rarely) (Sometimes) (Usually) (Always) 30. Nhat percent of the time does your coapany use computer generated schedules to assist in planning during the pro-construction phase? (1) Never (2) 1-305 (3) 3040‘ (’1) 60-901 (5) Always 31. Nhat percent of your company's CONSTRUCTION MANAGEMENT jobs incorporate 'Value Engineering' into planning during the pre-construction phase? (1) None (2) 1-301 (3) 30-501 (’1) 60-905 (5) All 32. 33- BI. 35. 36. 37. 38. 39. 1372 On what proportion of your company's CONSTRUCTION MANAGEMENT jobs does your ccnany use ccquterised esti-ting techniques during the pre-oonstruction phase? 1 2 3 I 5 (no C.M. jobs) (sost C.M. jobs) (all C.M. jobs) To what extent do the steps which your company uses for planning a CONSTRUCTION MANAGIIENT job vary with the dollar value (sise) of the job? 1 2 3 I 5 (Never) (Rarely) (Sometimes) (Usually) (Always) On what percent of your company's CONSTRUCTION MANAGEMENT jobs does your ccmany, during conceptual planning, set dates for completing the design phase? (1) None (2) 1-305 (3) 30.605 ‘ (I) 60-905 (5) All Once set, how often are the dates in your company's plan for the pre-construction phase formally updated? 1 2 3 I 5 (Daily) (Semi-weekly) (Neekly) (Semi-monthly) (Monthly or less often) Does your company apply any formalized sethod of 'risk analysis' to the project during the conceptual stage? 1 2 3 I 5 (Never) (Rarely) (Sosatises) (Usually) (Always) For what percent of the jobs does your company propose m alternatives during the pre-constructicn phase of a CONSTRmTION MANAGDTENT project? 1 2 3 l1 5 (Never) (Rarely) ( Sometines) (Usually) (Always) For what percent of the jobs does your conpany propose W alternatives during the pre-construction phase of a CONSTRUCTION MANAGEMENT project? 1 2 3 '1 5 (Never) (Rarely) (Sosatises) (Usually) (Always) In your experience, once a CONSTRUCTION MANAGEMENT contract has been signed, what percent of decisions affecting planning during the pre-construction phase is mm; made by the ONNER? (1) None (2) 1-301 (3) 304“ (N) 60-90! (5) All 1373 NO. In your experience, once a CONSTRUCTIN MANAGEMENT contract has been signed, what percent of decisions affecting planning during the pro-construction phase is m made by the CGSTEUCTION MANAGER? (1) lone (2) 1-305 (3) 30-608 (N) 60-901 (5) All ’11. In your experience, once a CONSTRUCTION MANAGEMENT contract has been signed, what percent of decisions affecting planning during the pre-conatruction phase is m made by the Architect-Engineer? (1) None (2) 1-305 (3) 30-60! (N) 60-905 (5) All Thisseoticsofthsuastic-einaflsquesticuabostyosrcqny'sempciasouin themMAEAu-Tfieldcverthelastnnyearm. Rlessscirclethemmsr hichdasa-ibashosneesyosrm's ”foul-nos. N2. N3. NN. N5. Nhst percent of your company's completed CONSTRUCTION MANAGEMIT jobs had a final cost equal to or less than the m original budget? (On average for the last five years.) (1) None (2) 1-301 (3) 30-60$ (N) 60-903 (5) All Nhat percent of your company's completed CONSTRUCTION MANAGEMENT jobs had a final cost equal to or less than the final pre-bid estimate? (On average for the last five years.) (1) None (2) 1-303 (3) 30-601 (N) “-9“ (5) All Nhat percent of your company's CONSTRUCTION MANAGEMENT jobs were conleted by the SIM—'1 original completion data? (On average for the last five years.) (1) None (2) 1-3OI (3) 30-605 (N) 60-901 (5) All Nhat percent of your company's CONSTRUCTION MANAGEMENT jobs were completed by the date established during pre-construction planning? (On average for the last five years.) (1) None (2) 1-303 (3) 304” (N) 60-90‘ (5) All Of the CONSTRUCTION MANAGEMENT jobs for which your coapany was asked to partici- pate in a selection interview by an ONNER, what percent did your company mm contract for? (1) None (2) 1-30’ (3) 30405 (N) 60-90‘ (5) All 174 '17. Now do you believe your conany's growth, over the last five years, compares with other companies of your sise offering CONSTRUCTION MANAGEMENT services? (This is only in reference to the CONSTRUCTION MANAGEMENT portion of your company) 1 ‘ 2 3 11 5 (Slower) (Same) (Easter) Thimseoticsofthauutionninasksquutionsaboutyurccwsuduringthslatut couleted fiscal year. Anticipating your sensitivity to some of the questions, I egeissouldlikstousunyourthstyourrupouuwillbegW Atntimssillanyofthisinfor-ticsbekmntoamonabutmysalf. Themality anduufulnsuofthsfesdbsckwhichycuressivenosmsandtheuufulnsssoftha istI-tinsfiichyoshsvealrudygivendepndsupcnthacoqletauuofthsouu- tic-sire. Iassotaskingforspecificfiguras, onlyratios. PLEASE cm 0": NS. These ratios are for the ENTIRE company N9. __ These ratios are for the CONSTRUCTION MANAGEMENT Division only. Please give the following ratios for the latest completed fiscal year: 50. Operating profit/gross fixed assets __ S 51. Net profit after tun/(Allow - Liabilities) __ f 52. Income before taxes/Equity __ 1 'Please feel free to use the remaining space for any additional co-ents. THANK IOU FOR IGOR TIME AND EFFORT. PLEASE FOLD IOU! comm QUESTIONNAIRE AND MAIL II II was STAMPID mops PROVIDED. IF YOU 113003le A cumin 0! RBOLIS, IOU HILL REBIVI II II APPROXIMATELY SIX wuss. THANK YOU. APPENDIX C STATISTICAL DEFINITIONS AND FORMULAS USED TO ANALYZE DATA APPENDIX C Statistical Definitions and Formulas Used to Analyze Data MEAN: The sum of the individual values for each case divided by the number of cases. _ XX X:— n Where § - sample mean 2x = sum of values of all cases n = number of cases in the sample STANDARD DEVIATION: The square root of the averages of the squared distances of observations from the mean. 2(x - §)2 n Where 3 = standard deviation of the sample 2 = symbol for the sum of all the (x - §)2 x = the observation the sample mean x n = the number of cases RANGE: The minimum value given for a variable subtracted from the maximum value given. 175 176 PEARSON PRODUCT-MOMENT CORRELATION: The general formula PARTIAL for computing Pearson product-moment correlations is - 2 1:1(X1-XHY1-Y) _ _ 1/2 {[2“ (x -x) 2] [2" (YI-Y) 2]) 1:1 1 1=1 Where X1= 1th observation of variable X Y1: 1th observation of variable Y N = number of observations N 2: 1=1X1/N i mean of variable X mean of variable Y K21 II M K: \ 2‘. ll CORRELATION: The basic formula for the compu- tation of partial-correlation coefficients is _ r.. - (r. )(r. ) rij.k — 13 1k 3k 2 2 \/ l rik J l rjk Where k = the control variable i the independent variable the dependent variable Us II (the order of i and j is immaterial) APPENDIX D KEY TO VARIABLES Iariahle CSTOWNBG CSTPREBD CMPEST CMPPLN COMGRWTH COMMO CONSTALT COORGAN DECBYAE DECBYCM DECBYOWN DESGNALT HIREBFAE INPLVOL APPENDIX D KEY TO VARIABLES Machine Percent of CM jobs with final cost equal to or less than owner's original budget. Percent of CM jobs with final cost equal to or less than final pre-bid estimate. Percent of time computer estimating techniques used during preconstruction phase. Percent of time computer generated schedules used to assist in preconstruction planning. CM company growth as compared to competition. Part of time the company has major role in establishing team (owner, CM, and A-E) commu- nication procedures. p Proposal of construction alternatives by CM. Company organization. Percent of decisions affecting planning, dur- ing preconstruction, made by A-E. Percent of decisions affecting planning, dur- ing preconstruction, made by CM. Percent of decisions affecting planning, dur- ing preconstruction, made by owner. Proposal of design alternatives by CM. Part of the time the CM company is hired before the A-E. Percent of in-place construction volume (dol- lars) generated by CM contracts for last five years. 177 Mable INTERACT JOBOWNDT JOBPREDT JOBSCNT MANGREXP NTWRKSYS NUMBRNCH NUMCMCTS NUMEMPFL ONESUPER PLNUPDT PLNVSSIZ PRECONEM PROFJOUR PVTJOBS RISKANL SEHBYPRO 178 Meaning Interaction with design firms useful as a source of CM contract management information. Percent of CM jobs completed by owner's origi- nal completion date. Percent of CM jobs completed by date set dur- ing preconstruction planning. Percent of CM jobs actually contracted for after participating in owner's selection in- terview. Manager's own experience useful as a source of CM contract management information. Part of CM contracts which require a network based scheduling system as a requirement of the owner. Number of branch offices. Number of CM contracts completed in last five years. Number of full time employees. Percent of CM jobs with one supervisor for preconstruction phase. Formal updating of plan for preconstruction phase. Extent to which planning steps vary with pro- ject size. Percent of preconstruction phase employees who are permanent. .Professional journals useful as a source of CM contract management information. Percent of CM jobs done for private, as op- posed to public, owners over last five years. Application of formalized method of "risk analysis' during the conceptual stage. Seminars by professionals useful as a source of CM contract management information. Eariahls ssuuaons SETDTDES TMSUPER VALCMCTS VALENG VALLGPRJ VALSMPRJ VOLWKPRS YRSNBUS YRSNCM YRSNHSE 179 Meanina In-house seminars useful as a source of CM contract management information. Percent of CM jobs on which dates for complet- ing the design phase are set during conceptual planning. Percent of CM jobs with team supervision for preconstruction phase. Value (dollars) of CM contracts completed in last five years. Percent.of time ”value engineering“ incorpo- rated into preconstruction planning. Value (dollars) of largest CM project in last five years. Value (dollars) of smallest CM project in last five years. Volume (dollars) of CM contracts which can be handled with present workforce. Years in the construction industry. Years offering CM services. Years of in-house design capability. APPENDIX E FREQUENCY HISTOGRAMS 180 .m. >uau=auga o~ m. ~_ 4 a o .....IIOOO-OOU.OIIOO—OOIOI..OO ......INO-IOIOOI...“ mug-moo zuzac. m- A . A~ . cached muu.aso xuzaxn m-_ . A.. . «aaa11.1111 ...... 11111411111“ V muu.auo zuzuxo on . «111114114111111141111411---1114111411144141.-11“ muu.ooo tux¢¢o mo cunts: >uzu=auxh on o: On o~ o. o —OOOOO0.00—0.0...OIO-OOOOIOOOO-.OI.0.0.I.IQII.I..." axon» . A . .4 case“ was > m.-.. . ~— . a“ ¢ 1. . Am m as.“ use: . N Ills-II ( “A‘1‘“1“1“‘144“““4“"1‘ >h_a_n¢o — uaou xuzcntsx v. ZOHFmHDH 1 _ menu umxxmxr n. ZOHFmHDO 1 meoumoumfim wocmsvoum H. 53:3... o~ _ ~_ a a O -....I.... ......CCC-OIOUOOIOU ......C..-...I.I..." wcdur u. A . .~. . 41111111-1-111-111-11111111111m «Qty» «.10. . «o . ceaeeceeaeeeeead m¢¢u mus . u cacao“ «com» on: . A“ ' 143114311414114441131111 _ n ¢u> no. . an essence.“ A (u 8. made» suzuaonxa cm as on o~ o. o -00............O...—OI0............CIIU—UCOOCOI... . m¢¢u> an A ..~ V 11111-114----141444<1w _ occur o~u _ . an ace . sch» m.-.. . a . aces“ «can» 9..» . .m . coach“ mnuz.m:. 30_hu:¢hmzou a. «com» W mnsmflm moon scams» a. sousuuco . moan masmmx> «- acaemuaa . 181 >92u30u¢u o~ o. N. a 4 o _ .........._......... . hauucuo oo.-oo A Ao. . aacaceaecccaceaaa«eaaaaaceaauaccaeaeeaaau«can.ac“ knuucwo oo-o¢ _ An . «Accessed hzuucua cone; . A: . ecuaeecaeed hzuucua oeuo~ _ A~ . ceased hauucuo ON v . A: . aeseeeaeead hxwxoxu=auxa o a A o ONGOINOO¢sOOIIINEO-OUONINOOI—IIIII.I.....-IOUOCI- . . 20.43.: can A Am v cocoaaoaaaascaaaaccaacoanacacoocacaaooccauacad zo.nn_: oo-oom _ A. . caucus 33...: 3-03 A“ ' 3114411141111111‘43‘1‘114114‘41341 zo_nn_z on-m.~» ' .1 I 4‘ , zo.nn.: m.~m v A0 v sahoods«nakaahccaoiafihskacahuad mean» A boas z. mhueaczoo to so was.» A uQOU taxouuco na- IOHHmmDO 1 A uOOu whutua¢> Nu. ZOHPmaDO I no.ucoos A.m mcsmam >92u30uca o~ o. ~. 4 a o -....0....-.........-......... ......O...’........” «pouchzou to o: A _ A . accuses.“ mhuachxou to on-.~ . A. . eeee A mku¢¢h2¢u (u an-.. . A- v 1‘1‘34‘11‘31131‘1‘1‘134‘1333 mPUCCFIOU ‘0 0—1— h- I 3111114‘411411113114111114111411“111141111‘1 «can» a pass a. mhu<¢pxou to no gusts: cm. as on an o_>uau=ou¢m . ......._........................................ muu>04 m can A " ~ . a.“ muu>9natu omnuAma . A. . a“ muusonazu om_-_m . A~ . he“ ouu>oaotw on v . as” v ‘4‘111‘344‘3‘1‘343‘434‘331‘1‘ muu>0aotu at.» 443m mo aunts: u A moon abututaz dd. IOHBGHDO A moou Jumtutsz Odo IOuhmmaa 182 Auxuaouca ON A «A m a o -I.I..OI.. D.C.-.COO—ICOOOCCO. IIOIUUO..-I.......l- A A~ A «enced Aauuma hdxlutOm A Am. A «eceeaeeeaccareaaseaaeeauacaaeseeeeusaq A Am A unu<.<«<<<<4¢<<1<<<uxu30u¢A 2 _ ArizzA . o ......O... ....IICC. I..IIIII........'.I— A A Aauuma raw) AA A are“ gamma: hcxleOm A AAA A «ac«as.aaceaaeacaeaeaeaeeceeaecsaaaa«accused A AA. A 141-1-4411141114114141114111a Aadmma 44¢ bc #0: A A eeeaeaaau oAzA hut Ao uu¢=Om m1 maoxcaafi Act; A uaou maczatum NA. ZOHHmHDO 1 A maOU caofinocs cu. IOHhmHDO 1 A@.ucooA H. saunas... Ari... .A_AA._. A bluucuo ovoAo A A: A unacceaaaeu uucuo occAw A Am eeceeeaeeeaauu hxuuxua oouAa A AA A ---«11114111114414A zuuuuo 041A~ A An aeeaeeeeeeceeu hauucuo ouuo A fl- v ‘1‘331131311431RININNIINRNNN‘NNN tu tocA utaAo>.uu m ousmflm u A mean 49>4A8A an. IOHBQHSO 1 ~ 0669 n¢L33Ao> vac IOHPmuDO 1 183 A Auzuaaucm A~A.A_A.A Auchm A Ac A «1111111 111111 111111A A An A sauaecaaa zoAh<8AntoU III'II‘I‘ AOA A flaflflama<1<<<<11<<111111111411141141111 II 11‘ ' 4 Au A cause“ AzAA A An A aeaeaeaeu zoAhCNAxouxo >8¢A¢6u Auzuaouca c~ w— NA 4 1 O ......O...—...-.....-......... .....ICII-I....I.I._ A 43Aum: >¢u> A Ao~ A aa«acacaaaaaaaaaac«accuse«cocacaeeaaauaccaaccaaauaa A A AA A eeeacaacaeaeaaaaca« 43Awm: huzuaouca 2 .A.AA... ......I... A 4=Aum= >¢u> A A“ ' “11“‘I“““‘““m A” v ‘3‘N‘NN‘N‘3131‘111‘1‘1 A Aauuma h<:)u¢cm A A“- v N141411‘d‘4‘4‘41111111111‘141‘11111‘14M A AA A see“ 43Auw: 44¢ h: 08 A AA w «new 0A2. hut sou mtcAA zquua13 Puccuth >uauaouca oA........4 o A A o _ A A 4=Auma >cu> am V 1‘141‘1141‘41111“ 111111 1“ A A A0 v 1‘11‘1‘4‘N14‘41‘3331‘1‘1‘1‘33‘1111344 A 43Aum= hoziutom A Am A 11111111111111111111111111111111111 11111 111111 A A Am A 1111111111111111111111111111111 A 4:Aum: 44¢ h< box A A“ v 11““1“144‘4“131“‘NN‘N‘AR‘N‘N 0A2. but tam A01; >¢ m¢¢zA¢un A mean huacupz. on. soups-ca 1 A uaou onus-tum n4. zo~pmm=a 1 183 Auzuaauci oA A. «A 4.........A.........o A. A A -.....II.. .....I............ AA8¢Atou Auzuaouxa om...... — N. a ‘ o - ON NODQOOOOI-OCOOOOOOC ......IOO‘OOOOOOOOI- A 4: a .2 ARE). A AA A ecucaaeeeeaaeeaaead Aauuma b¢u> A AN v ““‘N‘4114‘1111111 ‘. v 44414411111111111111‘ A 43Aum: h<23utcm A Am— V 1111111411111141d411111114111‘1‘11411111m A AA A see“ 4: u 3 44¢ ho as A A m AA w use“ oAzA but 30A mtxAA zuAmu91) bucduhlA Acauaauca eeeeeeeeqeaeeaeeeeOoeee 4 ~ O - IO........IOOOI-IOOINIIOO“ Asian: >¢A> _ oA -. A“ . 4‘3‘333414113‘1‘3131131113“ A A Ao A 4111111111111111111111111111111 A 4=uum= hdxiutdm A Am v III 4141111111141111141111441111111114111111111114 A A A 4amum= 44‘ Pd P08 A A0 A 1111111111111111111111111111111 0A2. but (no AO¢A >0 muczAtuw A mean Podcuth 0d. ZOHEBIDO 1 A ueou eggs-sum 32 33.11.52 1 184 A.........A.........A.........A.........A.AAAAAAAAA A utAh uxh no 44¢ A A“ v ‘1‘““14“‘<3“‘3‘4‘1‘““M utA» Ax» Ac mo¢A2b1ozh A A: A 11111111111111111111A at.» at» Ao A4¢x1uxo A AA A 11111111111111111111111111111111111A utAh ax» Ao A4¢x use A A0. A «nu11111111111111111111 1111111 11111111111111111111A at.» at» .6 mac: A A“ . ‘414‘1‘1‘141‘1‘1‘1‘111111111111 «Asia >. a~¢.=aux mom auxum ecozhux Auxuaauca o~ . A. 4 a o -Oo..m...a ......OOO—NIOOOIOOO DION-...l-oOOOOOOIIU— . . m>¢34< Aa. A «a:«ca«a«aaeaeeaecaaecaaaeaaeeq «(Aw Ac ma¢A2h103h A n A ueceeeeau utAh Ao A4¢21u80 A an A 11111111111111 1 utAh A0 O¢A1h1w8° A A0 v 111111111111111111111 cwuoco ottou t¢uh but has I. u4°¢ cofi¢t A moan wrung)»: ma. sanemmsa 1 moOU Ottcu Cu. BOHBmHDO 1 Ao.ucooA A.m champs >oauaaug. cu A u. 4 a o .........I ......IOO-OOOIODOOO ......O...‘........“ 85.44.: can A A .44.: on» 1 oam A A A eeaeeeeeeed 80.44.: On 1 0A» A Au A echoed 26.44.: CA» 1 o.Aw A 30.44.: o.Au w A A; A aeeeeeaaeau as» m hm¢4 a. can to hmuu¢¢4 Ac ua4¢> suauaouzA o~ . A. A A o -esaaeoeee eaasseoee-IOOOOOOss soaaOllll-IOOIIOOOO. 86.44.: oAn 1 mm " AA A has“ doAAAA¢ m» 1 m..» . a A coaceaaeaeu zoAAA.: m..» 1 soon“ A 11 111111 11111111111111A zoom» v . AQ— v 1““!1131111!“14111311111‘1‘1‘411111114141111111“ Am A 1 an» m hm¢4 a. .05 to hnu44¢¢m be ua4¢s soon, fittfl44¢> MN. IOHBWHDO 1 A uaou fil‘tm4¢> -c ZOHPmmaa 1 185 o. A A A A Accuses.» A m>¢34¢ A Am A 11111111111111111111111111 A >44¢am3 A A“ v 11111111111111111111111111 A mutAhutan A Aa A 1111111111111111111111111111111111111111111111 A >4u¢¢¢ A A“ ' 1.1111111111111111111111111111111111111111111111 A ¢u>ua A a. v 111111111111111111111 08A38¢4o raucous; nuaA>¢uoan t¢ub A Auauaoumm wwzzz.A::::L::::?::::A::::; A n>¢34¢ A An A «caeeceeeeaaaq >44¢ama A A~A A 1«A111111111111111111111111111A mutAhutOm A .0 v 111111111111111“ >4u¢¢¢ A AA A 111111111111111A ¢u>uz A An A eeeueeeau uxAxa¢4A hmZOUACA umA>¢uA=m >A98A ~80 A mean «meant» o~. scuamnao 1 A wnou Cutauulo ON. IOHBMHDO 1 AG.HCOOA H Auguaauga ”fizzz.A::::fl::::+::::?::::« hzuuxua ooA an " AoA A 111111111111111111111111111111111111 11111111 1111A Auch; “A1om A An eeeaeaeeaaeeea A h8g0: A om1n~ A An caeeeeaau hxuucuo na1A A An A aeaaeeeed hxuucum o A A~ A cocoa“ «comma uh¢mA¢A can noon pauu¢um OWOOCOIOII m. - * ‘ >ugugw‘“ - 000.000.000.00... ....OIOOO-OOOOOOI... A A m>¢34¢ An A cease“ «(Ah uzw A0 nachboarh A n A cheeses.“ utAh uxh no A4¢x1ulo A A“ v 11111 11111 111111111 m utAh uxh Ac ocAsh1u80 A A - ' 1111111111111111111111111111111111111111 u1¢ uCOAu. Quch ICAA Cu .m musmflm . ~ menu m-°fih>t RN. Icahn-=0 1 menu. u¢Aou¢Az 0N. Iawhmlao 1 186 AuxuaaugA o~ A «A 4 a 0 ......U... COCO-ltlo-IOOIIOOOO ......OIO-IIOOCOOOO" m><34< A An A «cc¢¢¢‘¢« >444u¢¢¢ A AA A 4“‘4“““-‘«‘4“A ¢u>ux A Am A c‘c¢¢«a.¢acacu nofi no ua4<> 3h.) muA¢¢> 98.88¢4t puzuaoucA 2 a::;:w::::A . o A mcofi tu 44¢ A A; A ¢¢«««c‘uc4« moan tu Amos A A4 A ¢¢¢‘«c¢¢¢«« A A: A «cccgcc«¢¢« mnaq to a: A 0” III IKIIII II <4414¢4((d41144‘14441ii11411441‘411d1111114411414‘4 I A uzAh<¢Ahmu cuh33t0903 aces (u no h¢¢A A mean uAmu>xAA 2. Havana . A woou hmuAtu «2 22.530 u Ac.ucooA 4.m musmflm >uxuzau¢n A ~A d a o I.....O...IC...O.I. ......O...‘....CO.." 44¢ A AAA A 44“4‘-4‘¢“4<““‘1<‘4““‘A m hzuuxus omuoo A A: A c«¢¢cc‘c¢cd a hauucus OOan A hzuuxun OnuA A Am A cgqcccccc¢cccq a mac: A An A .«ccc‘ A . . moan cum: Calm u=4<> at.» ocu4¢> An. IOHhunao I >98u90m¢m A NA a a o ......OOD-CIOOQCOOO .........-.......OO" m>¢34¢ A An A «cccccccc m A firm cu; oaoow A A: «ccc«¢¢cc«« a hxuucus Ian A AA 3A ac.“ n bzuuxus OmoA A AAA A 144444“4“ 1111 <4<‘«‘«q“4‘m ~ ¢u>ux A v ‘4‘11‘11“4“1‘I‘111““44‘(4‘I4“.“ - A mean cum: auxum oupccusuo cupagtou at.» 24AA¢u on. acaamusa - 187 u 4 >unuaau¢m A w” — 4000......-.........- . A m>¢34¢ A Am A ccccccc¢cccccu >44uau=oA¢A o~ w— ~A & a o .........I..........-......... I...‘..............“ m><14< A Am A ««c««ccc«¢ccc« >444u¢¢¢ A an— v 1““ “““ ““‘4“‘4‘“1‘4““““‘m ¢u>ux A A” v ‘1‘44‘14‘1“““4““ mAm>4~xuu3uA an A A c¢«« oaAax¢4A hmzouuc; olAcaa subcata «8‘4; >usuaau¢A o~ A «A a a o .......... ...Il....-......... ......... .........” 44¢ A AAA A “«“““‘<‘<““““-‘4“-‘A hxuu¢um 00.00 A As. A .cc¢a«¢c¢¢¢¢«cc¢¢cu bxuunum owuon A An A «ccc¢c«¢cccccccc.¢ccu hung at annA A An cc¢c«¢¢a« use: A An A «cacccccu Az‘AA 4uzuaau¢A cu A «A a a 0 .000000000 ciloooogo-ooooooclo oooccooIo-OOOOOOOO.“ 44¢ A An A cc...“ Azuuzug oa-o¢ A A: A ¢c¢¢¢¢¢ccc« Azuucua ooIOn A A~A A c«c.¢ac«¢cc«c«acccutcccc«¢¢«¢«d hauucus onIA A AAA A «I-IIIIIIIIIIIIIII0 monmAuun uzAat¢4t AuzuaouaA on A ~A * a o ......I... ......IOO-I..l..... ......O..-........." hzuucun oanm A AA A «.¢¢«¢cc«¢¢¢«««« hzuucum ooIOn A AAA A ¢«‘««c«‘c¢«¢accccc¢cccaccuccc«ccc«cc¢c¢¢ccc« hzuuxu; onIA A An A ¢c¢¢¢c««c««cc« mac: A A4 A «auccucccca to >- aonnAuua uaAaa¢4A A uaou AAA-um: av. onamuau I A moou tu>ouuo O: saga I AUAHCOUA H. «A . Auauaoucm A wmcitol..0 .....0.0I-......I.O*OO..C.O............" 44¢ A AA A cc.“ handcuc oano A A A cc.“ AzuucuA o¢-on A A“. v ‘1‘“1{ddd‘114(““1144‘4411141441‘14<1m hxuuzum onIA A An— v *<‘441“¢411111411““1‘144‘11414m use: A Au A «cc... maul): >- ozoAaAuua oaAll¢4A AusuaoAcA o~ A ~. A e -OO-OOOOOO ......OCI-oIOOOOOOI ......I..-...COUIII- A m»¢34¢ A An A IIIIIII‘IIII-IIIIIIII A AAAcama A A“ U ““({““1““““““‘ A auzAAuzou A A“. V 11‘““““444““““‘“‘4“““‘4““‘ uaAax¢4t I aunOAocs uu>Ah¢I¢uh4¢ baton m musmflm A unou xab>19ua an. IOHBDIGO I uGOu h4¢hwlou on. IOHanaa I 189 >98 on O: on ca 0. uaaucm -.........-...............I...-I...........-......- A 44‘ A Au A cc“ Axuugug on- A a A IIIIIIIIIII 34 ”Buuxus OOIOH A A A a¢ccc¢¢« A hzuucug OnIA A An A «cc hm80uw¢m a. bum uh¢a b. 8.; “-05 to AuguaoucA o~ A ~. 4 a o —OOOIIOOIO ......OOO-OOOOIOOOI 00.0.9000..........“ 44¢ A AA A «cad hzuucug omuo¢ A Ao~ A nga«««c«cc.¢c¢¢««¢««ccuccu‘ccc«qccccccuqcc4¢«¢¢c¢¢« wzuuzua oo-on A c¢c¢.c¢¢¢ccc«« hzuucuc anIA A An A ¢«¢«c¢¢«¢¢c«cd u A AA ...d An uh¢o «Ace uACuzao r. 8AA «new to n N moon beget-ow av. lauhmuao I uncu hallooofi QV¢ ZOHBDISO I AGAHGOOA H o~ A >uzu99u¢m A“ v ‘4‘“““““‘““‘ — “1111444IIIIIIIIIIII14411111141411111111 wauucus O¢Ion cc¢¢.c«c¢‘cc¢c ht new; IA n “A om ..." An A «cmnmuccw ...-4 An bun oAnIuc; 4¢8AA VI hmou 1.. aces to o~ A ~A >08u30ucn A 44¢ A Am A cac¢8¢c¢cc¢ccu hxuuxux OOIow A A». A IIIIIIII IIIII IIIIIIIIIII- IIIII III--III«2¢ntou u A menu 8h3¢o¢ou 5v. IOHBQHDO I AUAHCOOA H. AuaA:aA¢A o~ A ~. A A o . Au A c¢¢ccc AzuuuuA on-oo n A. A acccccccccccc¢.cccccc hxuucus OOIOn A A. A IIIIIIIIIIIIIIIIIIIII humus»; onIA A An— y 1111111111111111111111111111111111 «DA hu¢¢hzou >44¢=hu¢ m-OS (u m wusmflm uOOU Axum-on ow. sauna-=0 I APPENDIX E PEARSON CORRELATION MATRIX 191 Aoo.vI.a....Ao.vI.m...mo.VI.m..c I~n. vA. mA. we. vo.- m~.- .An. Am.- A~.- mA.- .on.- oA. no. «A. mooap>m no. vA.- vo.- AA.- AA. «A. ma. mo. no.- .on. «o ..ov. m~.- «oo.- u¢u¢u¢A= «o. no.- no.- mo. ..oc. no. Ian. mw. vo.- vA. vo.- ~A.- mo.- mxmxazr: mA. «n.- vA.- ac. Ao.- vo. .An. no.- go. .on. mo. ..vv. mo.- so. oxxou vA.- .vn.- mo.- mA.- ..vv. ...vs. oo. ...~o. ..om. ...om. ...vm. oA. ho. co. namuqa¢> no. mo. AA.- oo.- soo.- oo. mo.- «A. m~.- Ao.- AA.- .on.- mo. oA.- aza:m4¢> WA. «A.- AA. so. AA. .Av. A~.- ...om. .09. .mn. .on. so.- ac. Ao.- z4usooo -. go. «A.- oA.- ~o.- oA.- ...om. n~.- mA. no. coo. mo. Inc. «A. unusua¢x oo.A .ov. .an. va. AN. no.- «A. AA.- «o.- mo.- AA.- Ao. v~.- AA. pu¢xmpx~ .3. 84 ...3. .2. 3f 23. .3.- ..«vi 2.- ..ovf o~.- Si .3.- S.- 92.5.3 .~n. ...oo. oo.A .vn. oo.- aA.- .nn.- mo.- Ao.- m~.- voo.- no.- A~.- AA.- «sonata. on. Ion. .vn. oo.A vo.- «A.- ..av.- 9A.- m~.- -.- .on.- nA.- aA.- 0A.- uaongoam A~. «A.- mo. vo.- oo.A «An. .mm. ...om. MA. «A. oA.- ma. mA. FA. aosaman so.- ..mv.- oA.- NA.- Inn. oo.A .on. ...Am. ...Am. ..mv. ..mv. oo.- -. .nn. mamuzaos «A. n~.- .nn.- .I~v.- .nn. Ian. oo.A oA. .mn. mw. «A. AA. n~. ..Av. sarcomas AA.- ..~v.- no.- «A.- ...om. ...Ao. oA. oo.A ..On. ..ov. ...Am. ao. AA. vA. mpuxuq¢> ~o.- AA.- so.- m~.- MA. ...»m. .on. ..om. oo.A an. ...MA. mo. .Av. Inn. npuzuxaz no.- ..ov.- n~.- -.- on. ..mv. mw. ..cv. aN. co.A ..om. m~. ~oo.- on. amaxuxaz AA.- o~.- voo.- ..on.- oA.- ..mv. oA. ...Am. ...MA. ..om. oo.A «o. c~. can. :uaanzax no. m~.- no.- AA.- an. oo.- AA. mo. ¢o. m~. ~o. oo.A «A.- .A. umazmxx v~.- mo.- A~.- «A.- mA. -. MN. MA. ..A.. «oo.- o~. n~.I oo.A ma. swam-a AA. so.- AA.- 0A.- «A. .nn. ..Av. vA. .nn. m~. ...an. cu. n~. oo.~ maazmua .MmmumMMWI4mmmmmmmWI4mmumummM uaonsosa ao>AAzA mamanqos .mmmoouxa meuzuq¢> mauzuzaz ammzuzaz zuzxnzaz muzzmax :uamx» -mmnxm¢» macaques XMHUM: COMUMHm-HHOU GOWHMQQ Hum mHQMAH. m XHazmmm¢ 192 NO.I chn.I NN.I O—.I an. n~.I OO.A an. ccnv.I hu- ucchm.n ON.I aOv.I c-ov. mu. mO.I OO. mu. #0. NO. 0A. OO.A 0N. ccmv. an. no. NN.I ha. nc-Ao. NO.I NN. cnn.I cOn. acnv.I ON. OO.A NO. «mm. 00. AN. ON.I ON. hO.I MN. can. VO.I mO. NH. «'0'. OH. OO.A no. On. NH.I ccov. AA.I uNn. .On. ON. ma. 6A.I ccahm.1 an. .mn. no. OO.~ ON. cacvn. amn.l ON.I an. chm. OO.I .vm. ccmv.I ON.I AO. OO. ON. ON. OO.A v0. hO.I OO.I v". chv. NA. vn. N~.I cov.l NN.| AN. Nu.I «cavn. CO. OO.~ O~.I mo.I uOV.I ON. NA. NA. nu.l acct. NA. ON.I Icmv. amn.l NO.I O~.I OO.A ccnv.l OA.I NOO.I QN.I can. cmn.I an. mo. NO. mu. QA.I OO. mu. NN. cmn.l NO. n~.I FO.I «QM. cOV.I vA. 0A.I OO.I NN.I cvn.l mo. nu.I we. OO. nN.I AA. hN. nvn.I mm. VO.I (A.I nO.I NA.I an. N~.I n~.I no. nO.I v~.I OO.I 0O. wO. h~.I mO.I 0O. m~.I OO.I hO. Ou.I nN.I CO. - nw. OA.I VA. 0H.I CO.I ha. 00. uO.I ccvv. Ao.l nu. «O. v~.I aunt. FA. cmn. NO. ~O.I mN.I nu. «cow. .0. c-cmh. 0O. «chv. O~.I 0n.I no. 00. mm. NO. hO.I can. mN. no. «On. wO. OO.I AN.I «econ. NA.I chm. amn- VN. OO. mO.I cacnm.l 0O. '6'. MO.I ccaNo. an. ocean. nNAI AN.I OH. nN. «out. OA.I vu. ON.I hO-I mN. o0. c-Om. mN.I «‘0'. ma. an. nu.l NA. vN. aNn. O~.I m~.I uan. vO.I uwn. accom. hO.I can. MO. QO.I co. BA. «com. me. NO.I can.I NO. VA. @O. cc-vm. H~.I can. MOO. MN. OA.I do. we. hA.I mu. mu. ccov. VO.I ccvv. OA. cOM.I NO.I no. NO.I un.l On. VA. OA. OA.I mO. NN.I N~.I mO.I 50. GO. mo. ccwv. mN.I mu. vn.I ON. OA.I OO. mu. NOO.I OO.I ho. OO. mu.l dO.I Na. Na mmgm Pwmmlu Dzmd<> Ema—6 mum: mtg. mugmmzo WOOD—5AA gamma A I m>gE 9.50 angi> 2.5-wag $80 OXNAAUZ‘A WOOOE>L fl nxmlmdfl> IOOOhOIL 40>Afi§u mflmlIdOD [SIOUIBQ JhmdaI-al luxflnlfii nuclmlb lUSmlr AU.u:ooA Hm wanna 193 AOAUGOOA Hm manme Mo. mo.- MA. no. MM. AA. .oM.- ...Mo. Mo.- MM. .oM. .MM.- Mo.- MM. Moo. Ao. .oM. ..vv. no. vA. MM.- oM. Mo.- MM. MM. MA. co. .MM. MA.I MM.- Mo. oM. no. «0. .mo. .MM.- oA. .vM.- .oM.- .mM. Mo.- .MM. MA. MA. ...Mn. AM. .MM. MM. mo.- oM. co. .MM. .AM. .vM. MM. ..Mv. MA. MA. MA. .MM. no. no. oA.- .oM.- MM. oo.- .- MM. MA. MM. Mo.- oA. MA. AA. .MM. oM. MM. Mo. ...vm.- MA. MM. AA. MA. Ac.- oA. MA. voo. MA.- AM.- .MM.- Mo. ..ov.- MA. ..Mv.- ..mv.- oA. .vM. no. ..A.. Mo.- ..mo. MM. ..Mv. ..Av. vM.- .vM. MA. MM. .ov. AA. ..Mv. .vM. MM. Mo. AA. MM. oo.- vM.- MM.- oM. Mo.- Ac. no. oM. mo. oA. ao.- ..Mc.- vM.- MA.- vA.- MA.- MM.- co. oo.- mo. oM. MM. MM.- mo.- Ao. .vM.- Mo.- MA.- mo.- oM.- MM.- Ao.- mo. oo.- oM. MM. oM.- oM. no. Mo. MM.- .MM.- vo.- MM.- Ao.- no. no. Mo. Mo.- .MM. MM.- oM.I .nM. MM. MA. ..Av. no. MA. Moo. Mo. MM. oM. oA. Mo.- MM. '0.- IoM. no. .oM. MM. vM. oM. AM.- MM.- .mM. AM.- MM.- Mo. .MM. 0M. ..Mv. MA.- ...MM. ...mm. .oM. ...Mm. MM.- MM. .vM. MM. MM. oA.- ..om. .oM. oM. AM. MA. 8M. MA. MA. oA.- .MM.- .MM. vA.- MM.- MM. MM. oM. MM. oM.- oM. MM. MM. MM. .MM.- ..Mv.- ...MM. MM.- MA.- MA. vM. MA. no. .MM. MM. .AM. vA.- MM.- AM.- MM. MM. vo.- MA.- 0A.- vM. «A. MM. oA.- oM. vM. vo. Mo. .oM.- MM.- ..ov. MA.- cM.- MA. MA. MM. MA.- oM. MM. MM. vA.- Mo.- MA.- voo.- MM. oA. MA. Mo. Mo.- oM. MA. oo.- MM. MM. ..om. ..ov. oA.- Mo.- MM. Mo.- oM. oA.- vM. MM.- MM. Mo.- no. MM. Mo.- Mo.I ..Mv.- vA. .mM. Mo. oo.- .aM.- no. vM.I nun-usao announce Managua» -mmmmmaou a-nxmpmo .mmmmoymo uMMnumo sarcoma zzoxaoua MAMemzoo aaczcnmm az4umM¢ Managua muaeaamm 28E flung—H: mymlzgz 9.80 533:) DAM—13> 249—000 $3025- SEN amino-mm 33m Isaiah agamlu 194 QN.a mN.I ON.I NN.I VN. ON. cccnm. mN. nN. NN.I NO. nO.I ccov. NO.I SD 5N. mO.I NO. «6. «mm. .2... chv. ON. ON. OO. MN. nN.I NN. NN. ...—go ON. caom... 03”.: NO. ON. OO. n.—.u NN. ON... an. ON.I ON. .I NO.| g8 NN. HN.I nO.I mN.I hN. cOn. «cohm. AN. ON. ON. ON. NN. nN. OO. Eamon. mN. MN.I ON.| ac¢n.l chv. 5N. acyom. ON. mN. an. vN. NN. 1N. NN. in. OO.I vN.I mO.I vo.l OO. mN. can. NN. NN. vN.I CO. QN.I «.8. NO.I Oman-Frau 7N.| mN.I ON.I NN.| vN. ON. c-cnm. mN. nN. NN.| NO. mO.I ccav. NO... ”(x-U! ON. VO. NO... no. No. MN.| ON. an.a .15... NN. ON.I 'OO.I NO.I vN. you-U! hO.I . I 0O. 50. NN. cyan . cVn . inn . cccz. . hN . chv. ..N . 0N. nan. ENS NO. 3. 8.1 nO. ON. AN: nN. vN.I NN.| VO.I 0N.I ON. NO.I No. Fin-mg mO. ON. ON.. NO.| ON. NN.I mN. NN.I NN.I nN.I ON.I NN. ON. 60.0 fig! ON. NN. ON. «me. no.1 no. ON.I 5N. 0N. ON.I AN. nO. ON.I aOn.I dam: no. NN.I ON.I ON.| nN. can. «.3. ON. VN. ON. NN. nO.I QN. mO. SE5.— ON. OO.I ON. ON.| VO.| ON. «On. ON. ON. ON. NN. ON. hN.| VN.I wank—Fun «CNv.I «mn.! MN.| MN... vN.I ON.I NN.I NN... 0N. VO.I MN. NO.I mN.I Nummgn ON.» NO. 8. OO. vo. c-nv. NO. chm. ON. NN.I OO. ON.’ NN... mN. Es NOO.I nN.| nN.I nO.| MN. hN. OO. cmn. MN. NN. hN. NO. ON. vN.I u§> VN.| hO.I NN. 0N.| ON.| cmn. nN. vN. chv. vN. «.3. OO. CN. ON. inn—IO «can. «in. AN. 8.: 9N. NO. no. no. 2.: «Na. OO. hN.I ON. ON.I Inna-g cmn.l ccOQ.I own.I OO. ON.I NO.I #0.! mo.u QN. 0N.I NO.I 0N. ON.I 0°. GNAOMMZO BEE»: 933:3 maozzrmm 5529... 49:5 mas—50> :mzoumma m§3§ mpbzuzaz amnxmvsz :uzmgz ”Aw—Em: .629; 89.0: a Aw.ucoov NH manna 195 m0. AN. AN. NN. NO. n0. NN. ON. OO. AN. OO. ON. cmn.: .cOO. ON.: AO.I oOn. awn. OO. NN.: no. «00. ON.: NN. ON. AO.I ON. .aNO. NN. ON.: NN. mN.: AN. OO.: OO.: NO. AN.I ON. ON. NN. ON. NO.I ON. AN. AN. cuom. cOn. cmn.: ON. «on. no. cccnm. ON. ON. nOO. c-mO. ON.I nOO.I OO. OO.: awn. mN.I OO. ccOO. ON. NN. can. NN. NN.: MN. NO. ON. NN. NN. NO. OOO.: ON. mO. OO. an. no. can. NN.: chO. can. MN.I NN. AN.I ON.| ON. «on.l ON.I OO. OO.: ON.: ON. no. ON.: ON. ON.I ON.: NOO. chO. «Nn.: cccno. ON. cOn.: ON. cOn.: NO. cawO.: cOn. NN.: ON. NO. «can. ON.: AN. AO.I . AO.: ON. OO. me ccCOm.: ON. ON. ON. ON.I ON. ON. OO. NO.I AN. ON. cOn.I an. OO.: NN. c-AO.: NN. ON. ON.: NN. ON. ON. nnn.| «on. MN. c0n.: «Nn. OO.: On. c¢OO.I «OO. OO.: ON. ON. ON. NO.I OO. aOn.: mN. cOn. «On. NN. NN. ON. NN. ON.I OO.: ucOm. NO.I mN. mN.: NO.I OO. «0.: MN. AN. ON. COn. ICNO. ON. OO. ON. «NM. OO.: NO.I NN. cOn. «Nn. chO. NN. NO.I OO. cOn. OO.N mN.: «on. ON.I NN. NO.I ON. ON. NN.: ON.: OO.: NO.I OO.N ON.: «ON. ON.: ON. cAn.I mO.I ccho. AO.I CNN. nN. ON. cOO.I ON.| ON. OO.N OO. O0. AO.I NN.: OO. AO.I MN. awn. «An. c-NO. ON. own. cOn. OO. OO.N m0.: NO. ON.I mN. NN. one. ON. OO.: NN. NN. ON.: ON.: OO. OO.: OO.N .CCNO.I ON. AO. cnn.: OO.: ON. «On. ON. MN. NN. ON. AO.I NO. cacNO.: OO.N nN.I NO. com. mO. AN.| acmO.: NN.: NN.: Nngm has 22> NN.—LED Oman? zmmbmuzo WOOOE “(LOB—N: m>w§£ 9.50 ELSJ<> a§3<> 210180 Flu—2‘! Av.ucoov NONOUBO ZION-ODD hqIam kwflhlu NH mNQMB 11965 ON. ON.: AN. OO. mN.: NO.I ON. 3. ON. MNN. ON. OO.N ON. OO. ON. CNN. OO.: NO.I can. NOO. ccoAm. MMOO. MMMOA. OO.N NN.: ON. ON. MMNO. ccamm. AN. AO. MM.A MM. .MM. MA. MM. .MM. MM.- MA. MM. ..MM. .MM. MA. .AM. MM. MM.A MA. MM. MA.- MMM. MA. MM. .MM.- MA. AM.- MM. MM.- .MM. MA. MM.A ..MM. ..AM. ...AM. MA.- ..MM. MM. .MM. ..MM. MA. .MM. MA. MM. ..MM. MM.A MM. ..MM. MM.- MA. AA. MA. AA. MA.- MA. Mm. MA.- ..AM. MM. MM.A ...MA. MA.- MA. AM. ..AM. ...AM. MM. MM. MM.- MA. MA.- MM.- MA.- MA.- MM.A MM.- .MM.- AM.- AA.- MM.- MA. MA. MM. ..MM. MA. MA. MM. MM.- MM.A .AM.- .MM. .MM. MM.- MA.- MM.. .MM.- MM. AA. AM. MM. .MM.- .AM.- MM.A MMM.- AM.- MM. AA. ooMM. MA. .MM. MA. ..AM. ..AM. AM.- MMM. MMM.- MM.A ...MM. MA. MM.- .MM. AM.- ..Mm. AA. ...AM. ...MM. AA.- .MM. AM.- ...MM. MM.A MA. MM.- MA. MM. MA. MA.- MM. AM. MM.- MM.- MM. MA. MM. MM.A AA.- .AM. MM.- .MM. MA. MM. AM. MA. MA.- AA. MM.- MM.- AA.- MM.A MM. MM.- MM. MM. MM. MM. MA.- MM.- MA. MM. MM. .MM. MM. MA.- MA. MM. MA.- MM. MM. .MM. MA. MA.- MA. MA. MM.- MA.- AM.- MM.- AA. MMM.- MA. AA. MM.- MA.- MM. MA.- MA.- MA. MM.- .MM. AM. AA. MM. AM. AA. AM. MM.- AM. MM. AM. MM. ..MM. .MM. MA.- ..AM. MM. MM. MM. AM.- MMM. .MM. MM. MM. MM. MM.- MM. AA. .MM. .MM. AM. AM. MM.- ..AM. MM.- MM. MM. MM.- MA. AA.o MM.- .MM.- MM.- MMM.- MM. MM. .AM.- AM. MM.- .MM.- MM. MM.- g plow-MA. 83.32. 32333 EMA—Memo go MMAMMMM [...-70303 .3333 54528 AMSMMM 42552 NOOOIAO mmdbbbfim AO.ucOUV Na mNQMB OOIIOFOO OEIIOIOU EIOOOOO hOflOOOOO bOIIOOOO Oflulmhmu u‘xflofla IUOOUOO IIONOUOO OBOEOIQU batluafla ZJOOIU GOOOOIB OanmmIO