.A STUDY OF SELECTED FACTORS RELATED TO SNOWMOBILE ACCIDENTS BEFORE AND AFTER ENACTMENT OF REGULATORY LEGISLATION IN THE STATE OF NEW YORK Thesis for the Degree of Ph. D. MICHIGAN STATE UNIVERSITY NANCY G. HINCKLEY 1972 This is to certify that the thesis entitled "A Study of Selected Factors Related to Snow- mobile Accidents Before and After Enactment of Regulatory L931°13t1%&&e 3%? State of New Yor Nancy G. Hinckley kl! has been acCepted towards fulfillment of the requirements for PHD nge in Education V/I/L/Ma/ J/ (Ila f”/ 2’) Major professor / Dateo tober 19 1972 0-7639 ‘ BIN-.DING BY ' HBAE 3. sons . .anox swam lat LIBRARY mamas .‘L - mien chm. a “in; statute‘s L r. ,. '3t0"6569i2fi5'fl _h‘lvolvmnt :~I&"-‘1"-4 IN: I " .L in. ”in in the stifle :~L Nu. :'.'_. =- the a"C1C§é.-’?:.* r‘l”‘.I‘-I‘.'-".: M-‘wo v ‘g il‘l which fI..".-- We 'i ,‘I'. [..;‘__\:‘:n v 1‘ fatal .rc'nw-y ‘ar'c'zr‘vyrzm V.:,1’~...v - Militia!) the ace L9; inn-shed N._ wt "v‘t '- 1&4 occurrences. in which :51 - wag-\- 1.11 3U» ‘11.!“ e g: > v ‘ “GM-Its and 25 3.1151 Lnjuay nu swat-L ’N “s conducted in law {ark we my a? that '- b. 0‘ tho Mb.- la legts‘atu'r. {33371-1?‘ em “55 ', ‘- —:..' .'., In. in. 54‘s 1 "D! -u. r (1‘ H ABSTRACT A STUDY OF SELECTED FACTORS RELATED TO SNOWMOBILE ACCIDENTS BEFORE AND AFTER ENACTMENT OF REGULATORY LEGISLATION IN THE STATE OF NEW YORK BY Nancy G. Hinckley Statement of the Problem The number and severity of injuries incurred tflirough snowmobile accidents is one aspect of the snow- mobile problem that state legislatures are considering when passing statutes regulating snowmobiles. This study attempted to ascertain the differences in snowmobile accident involvement preceding and following regulatory legislation in the state of New York. Prior to regulatory legislation the accidents included 200 on—road and 137 off— road occurrences, in which there were 246 nonfatal injury accidents and 14 fatal injury accidents. Following regulatory legislation the accidents included 281 on—road and 406 off-road occurrences, in which there were 576 non- fatal injury accidents and 25 fatal injury accidents. The study was conducted in New York because of the unusual situation of the snowmobile legislation restricting Nancy G. Hinckley " qgwu-biles from travel along the highways in the 1970—1971 t ‘jwfiflflherflseason whereas in the 1969-1970 winter season travel '_: ‘-along the highways was permitted. ,Y Methods of Procedure This study considered the selected factors related to the operator, the vehicle, and the environment pertaining to: The populations of 337 snowmobile accidents in the 1969-1970 winter season and 687 snowmobile accidents in the 1970-1971 winter season; the on-road sub-group of 200 Occurrences in the 1969—1970 winter season and 281 occurrences in the 1970-1971 winter season; and the off— road sub-groups of 137 occurrences in the 1969—1970 winter season and 406 occurrences in the 1970—1971 winter season. 'The data were collected from accident reports, computer analyzed for distributions of specified record columns, calculated for increase in per cent change, and tabulated. The Major Findings . The following facts should be considered when ‘interpreting the findings of this study based on data provided in accident report forms: (1) the total number of snowmobiles in the state of New York was not known; (2) the rate or amount of exposure to snowmobile use was not known: (3) all off-road snowmobile accidents involving , L . personal injury and/or property damage in excess of :9 Nancy G. Hinckley ?t~l970; and finally (4) in the 1969-1970 winter season ‘r‘I'fébiles had to be registered only if used on the road- .‘flig 1, whereas in the 1970-1971 winter season all snowmobiles ‘ _‘hed to be registered if used on other than private land. “:The following are the major findings. 1. Registration of snowmobiles increased 250 per cent from the 1969-1970 winter season to the 1970-1971 winter season. In the 1969-1970 winter season there were 90.1 accidents for each 10,000 registered snowmobiles and in the 1970-1971 winter season there were 52.7 accidents per 10,000 registered snowmobiles. Both winter seasons had eleven fatal injuries in the on-road accident sub—group. There were eleven more fatal injuries in the off- road sub-group in the 1970-1971 winter season than in the 1969-1970 winter season. Fifty-nine and four tenths per cent of the accidents occurred on-road in the 1969-1970 winter season, but only 40.9 per cent occurred on—road in the 1970—1971 winter season. \ 1:6: Of the on-road operations prohibited by the Harris '1 Bill in 1970-1971, 65.3 per cent involved collision Nancy G. Hinckley with a motor vehicle in winter season 1969-1970 and 45.2 per cent in winter season 1970-197. In both winter seasons the majority of operators involved in either on-road or off—road accidents resided in the county of their accident occurrence. ‘aDY OF SELECTED FACTORS RELATED TO SNOWMOBILE ACCIDENTS BEFORE AND AFTER ENACTMENT OF REGULATORY LEGISLATION IN THE STATE OF NEW YORK BY ufi'. Nancy G. Hinckley A THESIS ' 3 Submitted to Michigan State University in partial fulfillment of the requirements for the degree of DOCTOR or PHILOSOPHY College of Education 1972 ”a this area of \n “7-” “at. Gehrlng , r ‘ l"‘ ‘ . 1 State 152“."‘1rn‘; {3’ r .. 'g’ef the snuur . '0 ”I. IVA". I- . and ' ‘1‘." "- - ~ ~‘-l. . of Parks o"(. R’“ .' 'I":~‘ {‘9‘ a. ‘1. OCCldun- re: z a ’0 the “‘63?" 3’ ’3: LHL'; n . Gustaf 50.. . Fhsinuac. a". ”.L . men, and ‘Fr. Robe-1": '3. Haas. ‘ . 'IC “(:3 E :1 {2r diligent phase of this endsazar it ACKNOWLEDGMENTS This study would not have been commenced nor L¥aaccomplished without the cooperation and encouragement of '“Gnnmerous agencies and individuals. It is with a debt of "H. ‘“ ‘ gratitude that these acknowledgments are gratefully 7/ bestowed: M ’7 To Mr. Charles W. Bostick, Director, and Mr. D. T" try Negri of the Division of Research Development of the M 'i'. '1Iw York State Department of Motor Vehicles for providing 9 r. ‘3 v ._ pies of the snowmobile accident reports. To Mr. Ivan Vamos, Director, and Mr. Roy Roberts of Recreation and Planning Division of the New York State To the members of the Doctoral Guidance Committee, 7. Robert E. Gustafson, Chairman, Dr. Joseph G. Dzenowagis, V George R. Myers, and Dr. Robert O. Nolan, who fostered Lifiiry into this area of concern. li.:?‘To Mrs. Karen Gehring for diligent service during ii :1. I . \ , n if '%0‘Theorodore E. Hinckley, my husband, for sus— flith and confidence from the beginning to the end Study . "f: to THE 2.3"“ l;'; .‘1‘ v." ' ‘ "9‘ . » st Parry“ ‘ A235 Lutv'” ‘A fig 6,3; Imprr‘; "'W . Oéflni'r Ac: :, e a 2. F‘lwwi “.25 . I" L515”): 2 ‘: {)f": ~- ‘ :‘, .,_ . ' ; ' “it“ 1. H5 ..‘ Otf‘i'W 8.; 'K d 0?!" RU“: “3 r:-’:.' 9“OHF}C w‘fit‘z.’ ‘ ‘ V "int" "was ~i. s" Ar" ~ I -5 ’ I‘”n.‘._ _n\» x ' A v ‘I . ‘. 3‘, ’L ' » :Wiléd rtw;f.:.:..i; L'J ‘9 ,1‘. in- ‘ mrd9\ - o . . ~ . 1 IS?" 13:) HETRCM’KU Y . _ . an of the Ifi‘vpd'; r'? . ; K .15; teiii Var‘ors of Carrezn in I Study. . . . . 27 941 TABLE OF CONTENTS ms? OF TABLES o o o o o o o c o THE PROBLEM . . . . . . . Statement of the Problem. Purpose of the Study . . Assumptions . . Importance of the Study . Definitions of Terms . . Accident . . . . . . . Fixed Object . . . . . . Hidden Object. . . Motor Vehicle Accident Report Office of Parks and Recreation Accident Report . . . . Off-Road Accident . . . On-Road Accident. . . . Snowmobile. . . . . Winter Season 1969- 1970 . Winter Season 1970- 1971 . Organization of the Study . . ia7REVIEw OF THE LITERATURE . . . Research Studies . . RecOrds. . . . . . . . Summary . . . . . . . . 1' Q ffDESIGN AND METHODOLOGY . . . . V Selection of the Population and t Sub-GrOups. . . iCSelected Factors of Concern in '_\ 5 This- Study. a a o O o a .\_\. n . iv Summarized Accident Data and Hospital Page ix £0090 \ocoooqq H 26, ‘27 . / r 1.21.7. - .A n I r Collection of the Data Codification of the Data Treatment of the Data Summary . . . . X" .13. ANALYSIS OF THE DATA . Selected Factors of Operator . . . Age . . . . Sex . . the Population . . . Ownership Status. Residence of Operators Type of Accident. Region of Injury. Type of Injury Classification of Accident Operation at the Time of Occurrence I I I I I I I Apparent Cause or Contributing Circumstance Vehicle . . . Registration Status. Vehicle Make . Horsepower. . Environment . . County of Accident Location . . Surface Condition Week of Season Day of Week . Hour of Day . Weather. . . Visibility. . Selected Factors of Operator . . . Age ‘I I o 0 sex I ‘ I I the On-Road Ownership Status. Residence of Operators. Occurrence O Sub-Group. I‘. . Type of Accident . . . . . . Region of Injury . . . . . . Type of Injury. . . . Classification of Accident. . . Operation at the Time of Occurrence Apparent Cause or Contributing Circumstance. . . . . . . . vehicle. I I O I C O D I O 0 Registration Status . . . . . . Vehicle Make . . . . . . . . Horsepower . . . . . . . . . Environment . . . . . . . . . County of Accident Occurrence Location. . . . . Surface Conditions Week of Season. . Day of Week. . Hour of Day. . Weather . . . Visibility . . Operator . . . . . . . . . . Age . . . . . . . Sex . . . . . Ownership Status . . . Residence of Operators . Type of Accident . . . Region of Injury . . . Type of Injury. . . Classification Of Accident. . Operation at the Time of Occurrence. Apparent Cause or Contributing Circumstance. . . . . . .I . Vehicle. . . . . . . . . . . . Registration Status . . . . . . - "K vehicle Make I I I I o o o o 1 Horsepower . . . . . . . . . “.25; ."F; . f1" ., 3&51. 7 vi Selected Factors of the Off-Road Sub-Group. 102 103 103 Madmri.n Page Environment . . . . . . . . . . . 103 County of Accident Occurrence . . . . 103 Location . . . . . . . . . . 105 Surface Condition . . . . . . . . 108 Week of Season . . . . . . . . . 108 Day of Week . . . . . . . . . . 109 Hour of Day . . . . . . . . . . 111 Weather. . . . . . . . . . . . 113 Visibility. . . . . . . . . . . 113 Summary . . . . . . . . . . . . . 115 ‘I. SUMMARY, CONCLUSIONS AND DISCUSSION, AND RECOMMENDATIONS . . . . . . . . . . 116 . ‘r v ‘ ~ Sumary I I I I I I I I I I 116 Summary of the Major Findings. . . . . . 117 1 5.‘. Summary of the Selected Factors of ‘ the Population . . . . . . . . . 117 Operator . . . . . . . . . . . 118 vehicle. I I I I I I I I I I I 120 Environment . . . . . . . . . . 120 Summary of the Selected Factors of the On-Road Sub-Group . . . . . . . 122 Operator . . . . . . . . . . . 122 vehicle. I I I I I I I I I I I 125 Environment . . . . . . . . . . 126 Summary of the Selected Factors of the Off-Road Sub-Group. . . . . . . 127 Operator . . . . . . . . . . . 128 Vehicle. I I I I I I I I I I I 130 Environment . . . . . . . . . . 131 Conclusions. . . . . . . . . . . . 132 Discussion of Feelings Not Supported by Data . . . . . . . . . . . . 136 Recommendations . . . . . . 137 Recommendations for Further Study . . . . 139 I I I I I I I I I I I I I I 1 4’1 'Malcolm Baldwin's Model Law . . . . Motor Vehicle Accident Report, Form MV—104. . . . . . . . . Office of Parks and Recreation I.'Accident Report, Form MRV-ZOZS . . Vehicle and Traffic Laws Relative to a Snowmobiles in Effect During Winter Season 1969-1970 . . . . . . . The Harris Bill (4862-A) Relative to Snowmobile in Effect During Winter 'Season 1970-1971 . . . . . . . Page 145 152 154 156 160 LIST OF TABLES Q E 3EJEJ . Distribution of Snowmobile Accidents of A Interest in This Study . . . . . . . . é. 44‘ '4." Distribution of Population by Age . . . . . . “‘1 ' 4,2. Distribution of Snowmobile Accident v- ~ . Involvement of Operators by Sex . . . . . ’v- , . ‘El-3. Distribution of Ownership Status of -‘J*‘.4 ‘ Snowmobiles Involved in Accidents . . . . h? §i4w . Distribution of Snowmobile Operators Involved - ‘£,;'_ 'in Accidents by County of Residence. . . . ‘-_ Distribution of Residence of Snowmobile 3.1, ~Operator by County of Accident . . . . . Distribution of Type of Snowmobile Accident. . Distribution of Region of Injury of Operators Involved in Snowmobile Accidents . Distribution of Type of Injury to Snowmobile Operator. . . . . . . . . . . . . Distribution of Classification of Snowmobile : Accident 8 I I I I I I I I I I I I . Distribution of Snowmobile Accidents by ggi Operation at the Time of the Occurrence . . Distribution of Snowmobile Accidents by Apparent Cause or Contributing Circumstance . EDistribution of New York Snowmobile .‘;_Registration by County . . . . . . . . ix Page 27 34 35 36 37 39 40 41 42 43 44 45 47 Page Distribution of Registered Status of Snowmobiles Involved in Accidents . . . . 49 Distribution of Snowmobiles Involved in Accidents . . . . . . . . . . . . 50 Distribution of Horsepower of Snowmobiles Involved in Accidents . . . . . . . . 51 Distribution of Snowmobile Accidents by County of Occurrence . . . . . . . . 52 Distribution of Location of Snowmobile Accident by Terrain. . . . . . . . . 55 Distribution of the Surface Condition of the Snowmobile Accident Location. . . . . . 55 Distribution of Snowmobile Accidents by Week of Season . . . . . . . . . . 57 Distribution of Day of Week of the Snowmobile Accident. . . . . . . . . 58 Distribution of Snowmobile Accidents by Hour of Day . . . . . . . . . . . 59 Distribution of the Weather Condition at the Time of the Snowmobile Accident . . . 60 Distribution of Visibility at the Time of the Snowmobile Accident . . . . . . . 61 Distribution of On-Road Sub—Group by Age . . 62 Distribution of On-Road SnOWmobile Accident Involvement of Operators by Sex. . . . . 63 Distribution of Ownership Status of Snowmobiles Involved in On-Road Accidents . 64 Distribution of Snowmobile Operators Involved in On—Road Accidents by County of Residence . . . . . . . . . . . . 65 Distribution of Residence of Snowmobile Operators Involved in On-Road Accidents by County of Occurrence . . . . . . . 68 Distribution of Type of On-Road Snowmobile Accident . . . . . . . . . . . . Distribution of Region of Injury of Operators Involved in On-Road Snowmobile Accidents. . . . . . . . . . . . Distribution of Type of Injury to Snowmobile Operators in On-Road Accidents . Distribution of Classification of On—Road Snowmobile Accidents . . . . . . . . Distribution of Classification of On-Road Snowmobile Accidents by Operation Permitted or Prohibited by the Harris Bill . . . . Distribution of On—Road Snowmobile Accidents by Operation at the Time of Occurrence by Action Permitted or Prohibited by the Harris Bill . . . . . . . . . . . Distribution of On- Road Snowmobile Accidents by Apparent Cause or Contributing Circumstance. . . . . . . . . . Distribution of Registration Status of Snowmobiles Involved in On—Road Accidents . Distribution of Make of Snowmobile Involved in On—Road Accidents . . . . . . . . Distribution of Horsepower of Snowmobiles Involved in On-Road Accidents . . . . . Distribution of On-Road Snowmobile Accidents by County of Occurrence . . . . . . . Distribution of Surface Condition of On- Road Snowmobile Accident Location. . . . Distribution of On-Road Snowmobile Accidents by Week of Season . . . . . . . . . Distribution of Day of Week of On-Road Snowmobile Accidents . . . . . . . Page 68 69 70 72 73 75 77 78 79 80 82 84 85 86 Distribution of On—Road Snowmobile Accidents by Hour of Day . . . . . . . . . . Distribution of Weather Conditions at the Time of the On-Road Snowmobile Accident. . Distribution of Visibility at the Time of the On-Road Snowmobile Accident . . . . Distribution of Off-Road Sub-Group by Age. . Distribution of Off-Road Snowmobile Accident Involvement of Operators by Sex . . . . Distribution of Ownership Status of Snow- mobiles Involved in Off-Road Accidents . . Distribution of Off—Road Snowmobile Operators by County of Residence . . . . Distribution of Residence of Snowmobile Operators Involved in Off-Road Accidents by County of Occurrence . . . . . . . Distribution of Type of Off-Road Snowmobile Accident . . . . . . . . . . . . Distribution of Region of Injury of Operators Involved in Off-Road Snowmobile Accidents. . . . . . . . . . . . Distribution of Type of Injury to Snowmobile Operator in Off-Road Accident Occurrences . Distribution of Classification of Off—Road Snowmobile Accidents . . . . . . . . Distribution of Off-Road Snowmobile Accidents by Operation at the Time of Occurrence . . . . . . . . . . . Distribution of Off-Road Snowmobile Accidents by Apparent Cause or Contributing Circumstance. . . . . . . . . . . Distribution of Registered Status of Snowmobiles Involved in Off-Road Accidents. Page 87 88 89 91 92 92 94 96 97 98 98 100 101 101 102 " if- 61. Distribution " Snowmobile :4 . 62. Distribution 7, Snowmobile “144.165. ' Distribution ‘ by Week of 5,154., Distribution v ' Snowmobile ‘ ' 3,6,5. Distribution of Location of Off-Road .g§-160. Distribution of Off-Road Snowmobile " ' Accidents by County of Occurrence . Accidents by Terrain. of Surface Condition of Off-Road Accident Location. of Off-Road Snowmobile Accidents Season . . . . of Day of Week of Off-Road Accidents . . . of Off—Road Snowmobile Accidents by Hour of Day . xiii Distribution of Horsepower of Snowmobiles Involved in Off-Road Accidents pé'iibfl?fit--Distribution of Weather Condition at the . ‘ " Time of the Off-Road Snowmobile Accident 5?.. Distribution of Visibility at the Time of the Off-Road Snowmobile Accident. Distribution of Make of Snowmobile Involved in Off-Road Accidents . . . Page 104 105 106 108 110 111 112 113 114 CHAPTER I THE PROBLEM The development of the snowmobile occurred over a 1‘ beriod of fifty years. The first recorded motorized, over Show travel took place in Kiev, Russia in a machine built By Igor Sikorsky in 1909.1 Next, in 1913, the name snow- .» ‘5 fiile was copywrited by Virgil D. White of New Hampshire Who also invented and patented the Model T snowmobile.2 ‘ I In ‘1928 the Ford Motor Company provided snow vehicles for A‘Qlllzlsfal Byrd's polar expedition.3 The snowmobile, a hindhine with ski frontrunners and rear drive track without ‘ u... ' 1%‘1620dynamic cowling, was invented and patented by Carl J. 3lilison in 1929 in Wisconsin.4 Finally, following attempts y" 1‘) - c. B. Colby, "Getting the Picture," Outdoor Life ‘I, 1969), 6. 2"The First Snowmobile," Yankee (January, 1971) , H - 3James J. Tuite, Snowmobiles and Snowmobilin from); Cowles Book, 19695, p. E. f» IStephen A. Briggs, II, "Snowmobile History,” ’1’Ssrfet Con oress Proceedins, 26:40 (1965), p. 40. in 1923 and 1936, in 1959 Canadian Joseph—Armand Bombardier designed the snowmobile as we recognize it today.5 From Bombardier's meager beginnings in 1959, the srlcmmobile and support industries now boast a multi-billion dc>Jlar business.6 The growth in the snowmobile industry is exridenced by the attendance of 250 exhibitors and 4,000 desalers and distributors at the 1971 Third International Snowmobile Trade Show:7 The multi-billion dollar business is accrued through the cost of the snowmobile, trailer, CJJDthing, transportation, lodging, meals, extra equipment, and insurance. On the average an individual pays $1,200 for: a snowmobile and equipment8 and not uncommonly a family has two snowmobiles. The number of snowmobiles per capita in a family has become a status symbol.9 Snowmobile sales 5"Snow Vehicles, Machine Design, 38:138 (January, 1966), p. 140. 6Jack Olsen, "Bad Snow Out in the Cold Snow," §mrts Illgtrated, V01. 32, No. 11 (March 16, 1970), 28. 7Pierre Aubin, "Snowmobile Country-~The U.S.," EBDIeign Trade, 134:14—17 (November 7, 1971), p. 17. 8D. E. Clarkin, "The Industry Pledge," Proceedings ‘3f the International Snowmobile Conference (Minnesota Department of Conservation, February, 1970), p. 5. 9Richard N. Humphreys, "Those Snowmobiles: Bane 0: Bone?" Vermont Life, Vol. 26, No. 2 (Winter, 1971), 10. information indicates that there are over one million snowmobiles in operation in North America.10 The varied uses and reasons for using snowmobiles lead to a large sales volume which is the generally accepted indicator of public acceptance. The varied uses of the snowmobile include: families enjoying the outdoors together, snowmobile clubs having developed from groups of people doing things together for social interaction,11 and sporting events having developed to provide an outlet for 12 competitiveness for many snowmobilers. The snowmobile is also a great boon to search and rescue teams and law enforcement officials in areas of heavy snowfall.13 Although snowmobiles are popular with many people, they are becoming unpopular among the environmentalists for harassing wildlife, for making trails which predatory animals use,14 for abusing public and private land,15 and 10H. K. Howe, Snowmobile Industry Sales (Washington, D.C.: International Snowmobile Industry Association, June, 1970), p. l. 11 . . . . . P. A. Snook, "Snowmobiling," National Wildlife, Vol. 7 (December-January, 1969), 43. 12John W. Malo, Snowmobilin -—The Guide (New York: The Macmillan Company, 1971), pp. 127-3 . 13Ibid., pp. 147-53. 14Richard E. Griffith, "Environmental Quality Impact," Proceedings of the International Snowmobile Con- ference (Albany, N.Y.: New York State Department of onservation, May, 1969), p. 80. 15Olsen, loc. cit., p. 30. 0 up “I "'0 f .,; n: ‘ 1"“ so 9 (4: U a . P-‘V ,. U' :- O .Uft \ 1144‘ '!‘ v7. 0.“ 0n- . 6.1. 4.. in NA is “d for polluting atmospherically and sonically.16 Also, private individuals dislike snowmobiles when the snowmobile is used for destruction of private property, tresspassing on private property, and for infringing on personal freedom by disturbing the peace.17 The conflicts between the snowmobile and other winter activities and motor vehicles have augmented the feelings rising against snowmobiles.18 Finally, the most important cause for the sentiment against the snowmobile is the number of operators, passengers, other winter sport participants, and spectators who are injured or killed through the unregulated use of the snow- mobile.19 The enactment of legislation usually lays the foundation or provides the means for regulation of man's activities by setting standards, imposing limits, and establishing enforcement. The aim of legislation is the regulation of the behavior of man to protect man from himself and others. For example, any game or contest has 16Elizabeth N. Layne, "Abominable Snowmen," American Heritage, Vol. 21:113 (February, 1970), 113. 17Diane Lansing, "Snowmobiles Push Further Afield," Christian Science Monitor (November 25, 1969), p. 6. 18Henry Giniger, "Scotters, (Snowmobiles, That Is) Hit the Alps," The New York Times (January 22, 1972), p. 8. 19National Safety Council, "Snowmobile Accident Summary 1969-1970 Winter Season" (Chicago, 111.: National Safety Council, 1970). pre-established rules and regulations; all forms of transportation have federal, state, and local regulations. Generally speaking man's activities are regulated. The increase in the number of the state legislatures passing statutes to regulate the use of snowmobiles is one indicator that the accident and injury statistics of snow— mobilers have been growing at an alarming rate. Twenty- two of the twenty-eight snow—belt states have legislation pertaining to the snowmobile. Of the twenty—two, all require a head light and tail light on the snowmobile, twenty allow snowmobiles to cross the highway, nineteen have registration requirements, eighteen have muffler requirements, and fourteen require accident reports.20 Many states also have equipment requirements relative to brake effectiveness.21 Malcolm Baldwin's Model Law was presented at the International Snowmobile Conference in Albany, New York, May, 1969. The titles within the law give an indication of its content. The titles are "Definition, Registration, Vehicle Identification, Licensing, Non Residents, Temporary Permission, Taxation, Dealers, Ownership Transfer, Noise 20"What You Should Know About Your Snowmobile and the Law," Snowmobile Handbook (Popular Science, 1972), pp. 42-43. 21"Winter's Horseless Sleigh: New State Law-- Proposed Local Regulations of Snowmobiles," Municipality, Vol. 65:30 (February, 1970), 31. and Exhaust, Operating Restrictions, Sanitation, Hunting and Use of Firearms, Liability, Accidents, Snowmobile Highway Use, Zones of Use, Municipalities, Penalties and Enforcement."22 The text of this Model Law may be found in Appendix A. The major concerns of individuals who want snow- mobile legislation are to have the vehicle registered and the operator licensed.23 However, according to some, there is little that legislation can do to reduce the hazard except to keep the snowmobile off the highway.24 A unique application of the motor vehicle law allowed snowmobiles to be operated upon the public highways of New York State after being insured and registered with the Department of Motor Vehicles for highway use.25 How— ever, subsequent to the enactment of the Harris Bill (4862-A) snowmobiles were registered with the Office of Parks and Recreation and were restricted to only direct crossings of highways at an angle of approximately ninety degrees and use of bridges and culverts in order to cross 22Proceedin of thg 1969 International Snowmobile Conference (Albany, N.Y., May, 1969; Albany, N.Y.: New York State Conservation Commission, 1969), pp. 40—44. 23"Cool, Fast Fun--and Trouble, Too," Life, Vol. 70, No. 7 (February 26, 1971), 21. 24D. Bell, "The Move to Harness the Snowmobiliacs," Maclean's, Vol. 80:4 (April, 1967), 3. 25"Vehicle and Traffic Law," New York Department of Metor Vehicles (Albany, N.Y.: September, 1969), p. 193. "a body of water.26 Therefore, in the winter season of 1969-1970, prior to the enactment of the Harris Bill snow- mobiles were permitted to travel along highways. With the enactment of the Harris Bill, during the winter season of 1970-1971 snowmobiles were forbidden use of the highways except for crossing. This, then presented an exceptional opportunity to study the apparent effects of regulatory legislation on accident frequency and severity in New York state. Statement of the Problem The snowmobile problem is as complex as our society. The reduction of the number and severity of injuries incurred through involvement in snowmobile accidents is one aspect of the problem. New York's state legislature enacted a law to regulate snowmobile use to ameliorate the snowmobile accident and injury dilemma. It was hoped that this study would reveal that the law enacted in New York state caused modification of snowmobile accident and injury involvement. Purpose of the Study The purpose of the study was to ascertain the particular factors that were most conspicuous in snowmobile 26J. L. Harris, et a1., "An Act to Amend the Vehicle and Traffic Law and Conservation Law in Relation to Regis- tration, Operation and Control of Snowmobiles,“ The issembly of the State of New York, No. 4862-A (February, 970). accidents preceding and following the enactment of regu- latory legislation in the state of New York. This study considered factors relative to the operator, the vehicle, and the environment for on-road and off-road snowmobile accidents in the winter seasons of 1969—1970 and 1970-1971. Assumptions The information collected from the New York Department of Motor Vehicles accident report form (MV-104) and the New York Office of Parks and Recreation accident report form (MRV-ZOZS) was assumed to be factual and objective. Importance of the Study Public and legislative concern has fostered legis- lative action. Hopefully, the information revealed through this study will disclose that persons concerned with the snowmobiling dilemma have made meaningful decisions and the elected representatives have passed legislation that deals effectively with the problem. This endeavor may serve as a base of information for future legislative and decision- making needs and may also be used as base year data for a longitudinal study. Definition of Termg Accident An event, occurrence, or happening which is un- expected or undesigned; it has an element of chance or probability, and has undesirable or unfortunate results.27 Fixed Object A visible immovable obstruction such as a tree or fence post. Hidden Object An obstruction not readily visible such as a stump covered with snow. Motor Vehicle Accident Report The accident report form MV-104 which must be completed by a police officer for any accident meeting statute definitions for on- or off-road accidents.28 A copy of the report is contained in Appendix B. 27Stannard J. Baker and William R. Stebbins, Jr., Dictionary of Highway Traffic (Evanston, 111.: North- western University, 1960), p. 2. 28Theodore E. Hinckley, "Analysis of Snowmobile Accidents Involving Young Operators in the State of New York" (unpublished Doctoral dissertation, Michigan State University, 1971), p. 11. 10 "_§flof Parks and Recreation "ant Re-ort U' The accident report MRV-ZOZS which must be completed [-Jn'é , fl'hy the accident subject for any accident meeting statute \‘ definitions for on- or off-road accidents. A copy of the Report is contained in Appendix C. l ‘ .‘3 ‘ - 1U .gt ~:' " An accident that occurs outside the highway right Off-Road Accident .J\{."oEWay. Reporting of such occurrences in the winter season :féii of 1969-1970 was not required, except in the case of a . fatal injury. Reporting to the Office of Parks and Recreation in the winter season of 1970-1971 was required :i, if there was resulting injury and/or property damage in ;;$£Ig§§€§s of $100.00. 5 xii OmbRbad Accident i‘ _ \}"‘; éflria* An accident that occurs inside the highway right of .‘m‘q. :. ta. flayt— Resulting personal injury and/or property damage in L x6583 of $100. 00 which, according to the law, must have :?~hnen.reported to the Department of Motor Vehicles in the Mal iflfihbbr season of 1969- -1970 or the Office of Parks and 4’ g,- n ll Snowmobile A motor—driven sled propelled by an endless track and steered by the use of a ski-like structure, designed to be operated on snow.29 Winter Season 1969-1970 Beginning November 1, 1969, and continuing through March 30, 1970. Winter Season 1970-1971 Beginning November 1, 1970, and continuing through April 30, 1971. Qgggpizatiop of the Study In Chapter II a review of the literature related to snowmobile accidents will be presented. The chapter will be divided into two sections: research studies to determine factors prevalent in snowmobile accident occurrences and summarization of accident data and hospital records. Chapter III will include the design and methodology of the study. The population will be described as well as the two sub-groups of special interest. In Chapter IV data gathered from the New York Department Motor Vehicle Accident Report MV-104 and the New York Office of Parks and Recreation Accident Report 291bid., p. 12. W A“ .- g, . 9““ ‘ i?" a..." '4: L .4 . ; ‘5‘; a“: . .. .1 :69, 9-33 havm pa «9c qk» ' Harder to azsttrmin . K ‘ . _ 12 solstionships and accident factors. “i In Chapter V the summary, conclusions, discussion SW» rs not supported by the data, recomendations, ndations for further research will be presented. ._ “9151*1‘ -'. ‘J .1938 Pro: . . - snowman; Lw 4'- atstz'atftg. "1f. , .ltudie‘s an ‘ ‘zv ..- (er howled; ' - " i ~ are is conca: w -. ‘-..-.2 '1 . ' '- S‘Ohi o: rt” gaiatfch ¢1 a. *hc 16: J.\ 3 ~ 1‘; A... accident Qatari-Incas m" .4 .“M and hospital recur-an, (mi- -. ’g.\':'-;' ~. into two parts . Regent h Studin .. y I. of the tire: research studies paw?" 5.26. e; m) CHAPTER II REVIEW OF THE LITERATURE Legislation is considered to be one of the ways to solve the problems caused by the phenomenal growth in the use of snowmobiles. Twenty-two states and four Canadian provinces have passed such legislation. The compilation of accident statistics by law enforcement agencies and research studies into the problem are attempting to provide a basis for knowledgeable legislation. The review of the literature is concerned with the major findings and recommendations of the research studies that were under- taken in order to ascertain the factors prevalent in snowmobile accident occurrences and a summarization of accident data and hospital records, which serves to divide the review into two parts. Research Studies One of the first research studies pertaining to snowmobiles was conducted by D. Barry Negri of the Depart- ment of Motor Vehicles. He prepared a preliminary review of accidents involving snowmobiles occurring in the winter 4 .7 13 O .w d Jun ID‘ .- J94 A i 14 seasons of 1967 and 1968. He followed the first study with a detailed investigation of snowmobile accidents from January, 1969 to June, 1970, a one and one—half year period. In the preliminary review Negri reported that two-thirds of the accidents occurring on public roads involved collision with other motor vehicles, 49 per cent occurring off-road involved the snowmobile overturning, occupant falling off, or an event resulting from proceeding over bumps and ditches; the body areas sustaining the highest frequency of injury were the legs and head; more than half the accidents occurred on a combination of Saturday and Sunday; and half the accidents occurred from 3:00 P.M. to 8:00 P.M. Negri's recommendations in the first review included that: Snowmobile occupants wear helmets, snowmobile operators while driving on public highways should be extremely aware that automobiles represent a special hazard, and snowmobile operators should make frequent mechanical checks to be sure their vehicle is in good working order.1 In the second report, a detailed investigation, similar findings were reported: Approxi- mately two-thirds of the accidents occurring on public roads involved collisions with another motor vehicle, 44 per cent involved overturning, falling off, or 1D. B. Negri, Accidents Involvin Snowmobiles--A Preliminary Review, No. 1970-1 (AISany, N.Y.: New York State Department of Motor Vehicle, Division of Research and Development, February, 1970). 15 proceeding over bumps and ditches; the body areas of highest frequency of injury were the legs and head, however there was a 29 per cent reduction in the probability of sustaining head injury for those wearing helmets. An additional finding was that snowmobile lighting may be deficient. Recommendations from Negri's second report included: Suggestion for further study to determine if snowmobile lighting is deficient, requirements and standards for helmets, public information concerning hazards of snowmobiles crossing public highways, vehicle safety maintenance, and snowmobiles should be equipped with a safety mechanism to prevent the throttle from sticking in the open position.2 Next Alfred S. King investigated the specific factors that were most prominent in snowmobile accidents in the state of Michigan. His information was obtained from traffic accident reports, driving records, and per- sonal interviews. King's major findings included: January as the peak month for accidents; approximately one-fourth of the drivers had accidents in counties other than where they resided; the combination of Saturday and Sunday accounted for 77 per cent of the accidents; over half of the accidents occurred between the hours of 4:00 P.M. and 2D. B. Negri, Snowmobile Accidents--A Detailed Investigation, No. 1970-2 (Albany, N.Y.: New York Depart- ment 0 Motor Vehicles, Division of Research and Develop- ment, December 1970). ‘I 1: ' 16 12:00 midnight; the average age of all the snowmobile drivers involved in accidents was 27.69 years; and over half the fatal accidents occurred when the driver attempted to cross the highway. King's major recommendations included: snowmobile regulations for an age limit for snowmobile operators; restricted use of snowmobiles on regularly traveled highways; requirement of safety helmets and goggles; research into better design and safety equip- ment for snowmobiles; and providing snowmobile safety information through the public media. Further study was recommended in the areas of legislation, safety equipment, and effects of the snowmobile on the wilderness.3 Most recently, the descriptive study of Theodore E. Hinckley attempted to identify the commonalities of snow- mobile accidents. Forty-two young operators in the state of New York received an in—depth study. Data were col— lected from the motor vehicle accident report, snowmobile accident report, subject interview, school record report, and abstract of the driving record. Major findings included: A majority of the subjects indicated an interest in participating in a snowmobile operation and maintenance course; the majority of the snowmobiles in the study were unregistered; the majority of the accidents occurred under 3Alfred S. King, "A Study of Selected Factors Related to Snowmobile Traffic Accidents in the State of Michigan" (unpublished Doctoral dissertation, Michigan State University, 1971). 17 seemingly ideal conditions of weather, light, and terrain; over 74 per cent of the accidents were in collision with another motor vehicle; vehicle deficiencies were present in over 11 per cent of the accident occurrences; and over half the subjects in the sample felt that alcohol in their system may have been a factor in the accident. Recommen- dations cited were for the snow-belt states to earmark funds from snowmobile registration for the development of trails and/or areas for snowmobile use; a public education program be provided for snowmobilers and non-snowmobilers; snow-belt states cooperate in the development of a uniform accident reporting instrument; and uniform signs be developed. Hinckley indicated that further study is needed in the areas of the effectiveness of restrictive legis- lation in frequency and severity of accidents, to determine the accident rate per mile or per hour of snowmobile operation, and to establish standards regarding the vehicle and its components.4 Summarized Accident Data and Hospital Records Much of the literature regarding snowmobiles is .based on summaries of accident data and on summaries of hospital records. This section will be organized into t11CDse findings and recommendations pertaining to the Operator, the vehicle, and the environment. .——— 4Hinckley, loc. cit. 'vF 34 (I) e-‘ 18 Common factors reported in summaries of accident data and hospital records as they relate to the operator include: A disproportionate number of victims either killed or injured in snowmobile accidents have been in the S,6,7,8,9,10,11,12 24 and under age group; a reportable number of vehicle operators were considered alcohol 5J. W. Martyn, "Snowmobile Accidents," Canadian Medical Association Review, Vol. 101:770-72 (December 27, 6R. H. Dominici and E. H. Drake, "Speed on Snow-- The Motorized Sled," The American Journal of Surgery, Vol. 119 (April, 1970)T7 7R. L. Withington and L. W. Hall, "Snowmobile Accidents: A Review of Injuries Sustained in the Use of Snowmobiles in Northern New England During the 1968-1969 Season," Journal of Trauma, Vol. 10 (September, 1970). 8William Castor and Hugh McIntyre, "Snowmobile Accidents," Canadian Medical Association Journal, Vol. 102:421 (February, 1970). 9Ontario Department of Transportation, "Snowmobile Collisions on Highways and Roads in Ontario," Prepared for the 1970 International Snowmobile Congress, Duluth, Minne- sota, by the Research Section (Toronto, Canada: Ontario Department of Transport, February, 1970). 10"Snowmobile Accidents in Canada Winter of 1969- .1970," Canada Safety Council (Ottawa: October, 1970). 11"Snowmobi1e Accident Summary 1969-1970 Winter Season," National Safety Council (Chicago, 111.: 1970). 12William Carlson and Marion Compton, "Snowmobile Crash Analysis," Highway Safeg Research Institute (Ann Arbor, Mich.: March, 1971). l9 13,14,15,16 involved; the largest percentage of snowmobile 17,18,19,20,21,22,23,24 operators were male; the type of injury most commonly reported was the fracture;25’26'27'28 and the most common regions of injury were the lower 13Ontario Department of Transport, loc. cit. 14Martyn, loc. cit. 15Dominici and Drake, loc. cit. 16Richard W. McLay and Stanley E. Chism, "A Snow- mobile Accident Study," A Report of a Study Given at the International Snowmobile Conference (Albany, N.Y.: May, 1969). l7Dominici and Drake, loc. cit. 18Martyn, loc. cit. 19Withington and Hall, loc. cit. 20Castor and McIntyre, loc. cit. 21Ontario Department of Transport, loc. cit. 22 "Snowmobile Accidents in Canada,’ loc. cit. 23"Snowmobile Accident Summary," loc. cit. 24Carlson and Compton, loc. cit. 25Stanley E. Chism and A. Bradley Soule, "Snow- zmobile Injuries: Hazards from a Popular New Winter Sport," JRDurnal of the American Medical Association, Vol. 209, NO. II (September, 1969). 26Martyn, loc. cit. 27Dominici and Drake, loc. cit. 28Withington and Hall, loc. cit. 20 extremities and the head;29'30'3l'32'33 and finally, many of the studies recommended the use of protective helmets and goggles.34'35'36'37 Common factors reported in summaries of accident data and hospital records as they relate to the vehicle included: Strangulation of operators due to clothing 38,39 caught in moving parts of a snowmobile; injuries or 29Martyn, loc. cit. 30Dominici and Drake, loc. cit. 31Castor and McIntyre, loc. cit. 32Withington and Hall, loc. cit. 33Chism and Soule, loc. cit. 34Raymond T. O'Dell, "Report on Oversnow Vehicles," United States Department of the Interior National Park Service, June, 1968. 35Diminici and Drake, loc. cit. 36Withington and Hall, 16c. cit. 37Castor and McIntyre, loc. cit. 38R. Dominici, "Safety," Presented at the Third Illiliual International Snowmobile Congress (Portland, Maine: October 13, 1970). 39"Snowmobile Accidents in Canada," loc. cit. () 21 40,41,42 fatalities due to sticking throttles; injuries due to insufficient padding and support;43'44'45'46'47'48r49 lights inadequate for illuminating the path ahead and for 4oDominici and Drake, loc. cit. 41Martyn, loc. cit. 42Withington and Hall, loc. cit. 43R. C. Sturgis, et a1., "Ergonomic Study of Snow- mobiles," A Study made at the Highway Safety Research Institute, Ann Arbor, Michigan: Supported in part by an Exploratory Research Grant from the National Safety Council, Chicago, Illinois, June 30, 1970. 44Richard W. McLay, "Machine Considerations," Recommendations of a Machine Safety Workshop Held at the International Snowmobile Conference (Albany, N.Y.: May 20-21, 1969). 45Henry Kao, "Human Factors," Recommendations of a Human Factors Workshop Held at the International Snowmobile Conference (Albany, N.Y.: May 20-21, 1969). 46Richard W. McLay, Paul M. Whalen, and William T. Kurth, "Methods for Eliminating Snowmobile Caused Spinal Injuries," Presented at the International Snowmobile Con— iference (Duluth, Minn.: February 9-11, 1970). 4.IMcLay and Chism, loc. cit. 48Castor and McIntyre, loc. cit. 49Chism and Soule, loc. cit. 22 50,51,52,53,54,55 recognition of other vehicles; ineffective steering and inherent vehicle instability;56'57'58 ineffec- tive brakes,59'60'61'62 unsafe windshields;63'64 unshielded mechanisms;65’66'67 excessive 50McLay, loc. cit. 51Kao, loc. cit. 52Martyn, loc. cit. 53Dominici and Drake, loc. cit. 54Sturgis, loc. cit. 55Withington and Hall, loc. cit. 56Chism and Soule, loc. cit. S7Martyn, loc. cit. 58Dominici and Drake, loc. cit. 59McLay, loc. cit. 60Chism and Soule, loc. cit. 61Martyn, loc. cit. 62Dominici and Drake, loc. cit. 63Withington and Hall, loc. cit. 64Dominici and Drake, loc. cit. 65"Snowmobile Accidents in Canada," loc. cit. 66Chism and Soule, loc. cit. 67Dominici and Drake, loc. cit. 23 noise;68,69,70,7l 72,73, 74,75,76,77 horsepower yielding high speeds; and vehicle design.78'79'8o'81 Common factors reported in summaries of accident data and hospital records as they relate to the environment include: A majority of the accidents occurred during dark hours, however many of the studies did not consistently 68McLay, loc. cit. 9Castor and McIntyre, loc. cit. 7o"Snowmobile Accidents in Canada," loc. cit. 71Martyn, loc. cit. 72McLay, loc. cit. 73 Kao, loc. cit. 74Dominici and Drake, loc. cit. 75Martyn, loc. cit. 76Chism and Soule, loc. cit. 77O'Dell, loc. cit. 7BChism and Soule, loc. cit. 79McLay, Whalen, and Kurth, loc. cit. 80Dominici and Drake, loc. cit. 81Withington and Hall, loc. cit. demark the line between daylight and darkness: 86,87,88,89 24 82,83,84,85, a majority of the accidents occurred on the roadway and a majority of those were with other motor vehicles; 90'91'92'93'94'95 and a disproportionate number of the accidents occurred on Saturday and Sunday.96 records Based on the summary of accident data and hospital recommendations were made in the areas of 82McLay and Chism, loc. cit. 83Castor and McIntyre, loc. cit. 4Dominici and Drake, loc. cit. 85Withington and Hall, loc. cit. 86"Snowmobile Accidents in Canada," 100. cit. 87Ontario Department of Transport, loc. cit. 88"Snowmobile Accident Summary," loc. cit. 89 Carlson and Compton, loc. cit. 90Martyn, loc. cit. 91Chism and Soule, loc. cit. 92Ontario Department of Transport, loc. cit. 93"Snowmobile Accident in Canada," loc. cit. 94"Snowmobile Accident Summary," loc. cit. 95Carlson and Compton, loc. cit. 96 "Snowmobile Accident Summary, loc. cit. ‘5‘: my" C - aflfln sliv ‘ ‘ an! who 6 5.44 25 97,98 99 legislation, improved forms for accident reporting, 100,101,102,103,104,105 educational training programs, and publication of owner-operator manuals.106'107 Summary The review of the literature revealed the major findings and recommendations of the research studies carried out by Negri, King, and Hinckley. Collateral information was provided through the summarization of accident data and hospital records pertaining to the operator, the vehicle, and the environment. 97Chism and Soule, loc. cit. 98Withington and Hall, loc. cit. 99Withington and Hall, loc. cit. 100Charles E. Garrison, "Maine Safety Report," Recreational Industry_(November, 1969). lolO'Dell, 10C. cit. 102Castor and McIntyre, loc. cit. 103Martyn, loc. cit. 104Withington and Hall, loc. cit. . 105"Snowmobile Survey," Research Committee, Public L71=¢1nlities Section, National Safety Council (Chicago, Ill.: Auguet, 1969). 106"Snowmobile Survey," loc. cit. 107Withington and Hall, loc. cit. CHAPTER III DESIGN AND METHODOLOGY In this chapter the design and methodology used in the treatment of the data are delineated. The chapter includes: Selection of the population and sub-groups, selected factors of concern in this study, collection of the data, codification of the data, treatment of the data, and summary. Selection of the Population and Sub-groups The population for this study was comprised of the 337 snowmobile accidents reported to the New York Department of Motor Vehicles in the winter season of 1969-1970 and the 687 snowmobile accidents reported to the New York Office of 1?arks and Recreation in the winter season of 1970-1971. Iflae population was subsequently divided into two sub- Eilroups of on-road and off-road accident occurrences for ‘Eeéich of the winter seasons. The on-road sub-group consisted ‘3’15 200 snowmobile accidents for the winter season of 1969- :1-53'70 and 281 snowmobile accidents for the winter season jL-SI'70-l97l. The off-road sub—group consisted of 137 26 27 snowmobile accidents for the winter season of 1969-1970 and 406 snowmobile accidents for the winter season of 1970-1971. Snowmobile accident reporting differed between the 1969-1970 and 1970-1971 winter seasons. In the 1969- 1970 winter season, on-road snowmobile accidents that involved personal injury and/or property damage in excess of $100.00 and off-road snowmobile accidents that involved fatal injury had to be reported to the New York Department of Motor Vehicles. In the 1970-1971 winter season all snowmobile accidents that involved personal injury and/or property damage in excess of $100.00 had to be reported to the New York Office of Parks and Recreation. The preceding information is organized and presented in Table 3.1. TABLE 3.l.--Distribution of Snowmobile Accidents of Interest in This Study. Snowmobile Accidents 1969-1970a 1970-1971b Population 337 687 On-road 200 281 Off-road 137 406 aSnowmobile accidents reported to New York Depart- ment of Motor Vehicles. bSnowmobile accidents reported to New York Office of Parks and Recreation. Selected Factors of Concern in this Study The selected factors of interest in this study were grouped into three general areas: The operator, the 28 vehicle, and the environment. The factors considered in the area of the operator were age, sex, residence, owner- ship, region of injury, type of injury, operation at time of accident, classification of accident, and apparent cause of the accident. The factors to be considered in the area of the vehicle were registration, make, and horsepower. The environmental factors considered were the date, day of week, time, location, county, weather, surface condition, visibility, and terrain. These data were obtained from the Department of Motor Vehicles accident report form MV-104 and the Office of Parks and Recreation accident report form MRV-ZOZS. Collection of the Data The Department of Motor Vehicles provided motor vehicle accident reports for the 337 accidents of the winter season 1969-1970 population. The Office of Parks and Recreation provided access to the 687 accident reports of the winter season 1970-1971 population. Codification of the Data Codifying manuals were developed for use with the Department of Motor Vehicles accident report form MV—104 and Office of Parks and Recreation accident report form MRV-ZOZS. Each selected factor of concern in this study was itemized with the responses assigned a number from O to 9. The number of the response was entered on a summary sheet, then transposed to punch cards. on u .4 p. “I Q. ‘4 F1 \ I ha. ) (h 0” 29 Treatment of the Data The punch cards were submitted to the computer for distribution of specified record columns. The per cent change was calculated for most of the selected factors. The per cent change was computed by finding the difference between the frequencies of the two winter seasons for the specified selected factor, dividing by the frequency of the 1969-1970 winter season selected factor, and multiplying by 100. The value of the per cent change was rounded to the nearest whole per cent. The data were then organized into three parts for analysis. The first part was con- cerned with the selected factors relating to the populations of the winter seasons of 1969-1970 and 1970-1971. The per cent change for the population of 337 snowmobile accidents in the 1969-1970 winter season and the population of 687 snowmobile accidents in the 1970-1971 winter season was an increase of 105. Therefore, the expected increase in per cent change for each of the selected factors in the popu- lation would be 105. An increase in per cent change in excess of 105 would indicate more than the expected increase, while an increase in per cent change of less than 105 would indicate less than the expected increase. The second part pertained to the selected factors of concern in the on-road accidents of the 1969—1970 and 1970-1971 winter seasons. The per cent change for the on-road sub-group of 200 snowmobile accidents in the 1969-1970 winter season and the 281 in the 1970-1971 winter 30 season was an increase of 40. Therefore, the expected increase in per cent change for each of the selected factors in the on-road sub-group would be 40. An increase in per cent change in excess of 40 would indicate more than the expected increase, while an increase in per cent change of less than 40 would indicate less than the expected increase. The third part treated the selected factors of concern in off-road accidents of the winter seasons of 1969-1970 and 1970-1971. The per cent change for the off- road sub-group of 137 snowmobile accidents in the 1969- 1970 winter season and the 406 of the 1970-1971 winter season was an increase of 195. Therefore, the expected increase in per cent change for each of the selected factors in the off-road sub-group would be 195. An increase in per cent change in excess of 195 would indicate more than the expected increase, while an increase in per cent change of less than 195 would indicate less than the expected increase. The data will be presented in table form in Chapter V. Summary The design and methodology included in this chapter described the selection of the population and sub-groups, selected factors of concern in this study, collection and codification of the data, and treatment of the data. The 31 results of the computer analysis will be discussed and presented in Chapter IV. CHAPTER IV ANALYSIS OF THE DATA Chapter IV includes an analysis of the data col— lected by the methods described in the preceding chapter. The results of the analyses are reported in three major parts, each of which is further divided into selected factors regarding the operator, the vehicle, and the environment. Part one deals with the populations of 337 snowmobile accidents in the winter season of 1969—1970 and 687 snowmobile accidents in the winter season of 1970-1971. The sub-groups of on-road snowmobile accidents of 200 in the winter season of 1969-1970 and 281 in the winter season of 1970-1971 are included in part two. In part three the sub-groups of off-road snowmobile accidents of 137 in the winter season of 1969-1970 and 406 in the winter season of 1970-1971 are presented. The analysis of the data is revealed through tables and statements. The following facts should be considered when interpreting the findings of this study based on data provided in accident report forms: (1) The total number of snowmobiles in the state of New York was not known; 32 33 (2) The rate or amount of exposure to snowmobile use was not known; (3) All off-road snowmobile accidents involving personal injury and/or property damage in excess of $100.00 had to be reported in the winter season 1970-1971, whereas only off-road snowmobile accidents involving fatal injury had to be reported in the winter season 1969-1970; and finally (4) In the 1969-1970 winter season snowmobiles had to be registered only if used on the roadway, whereas in the 1970-1971 winter season all snowmobiles had to be registered if used on other than private land. Selected Factors of mopulation Data from the Department of Motor Vehicles accident report MV-104 and Office of Parks and Recreation accident report MRV-ZOZS relative to the operator, the vehicle, and the environment pertaining to the populations of 337 snow- mobile accidents in the winter season 1969-1970 and 687 snowmobile accidents in the winter season of 1970-1971 are presented in this section. The expected increase in per cent change for each of the selected factors in the popu- lation is 105. Operator Age.--The age of the population is depicted in Table 4.1. The ages ranged from under fourteen to over fifty-one years. The mean, median, and mode of the ages of the population in the winter season 1969-1970 were 24.5 34 TABLE 4.1.--Distribution of Population by Age. 1969-1970 1970-1971 Years Per Cent Change Number Per Centa Number Per Centa 0-14 32 9.5 99 14.4 208 15-20 88 26.1 166 24.2 97 21-26 68 20.2 124 18.0 82 27-32 53 15.7 99 14.4 86 33-38 32 9.5 94 13.7 194 39-44 14 4.2 43 6.3 207 45-50 11 3.3 24 3.5 118 Sl-over 15 4.4 26 3.8 60 Unknown 24 7.1 12 1.8 50 Total 337 100.0 687 100.1 Mean Median Mode 1969-1970 24.5 years 23.7 years 17.5 years 1970-1971 25.2 years 24 years 17.5 years % Change 3 1 O aActual computed value rounded to the nearest tenth. 35 years, 23.7 years, and 17.5 years, respectively. The mean, median, and mode of the ages of the population for the winter season of 1970-1971 were 25.2 years, 24.0 years, and 17.5 years, respectively. The largest increase in per cent change occurred in the under fourteen and thirty-nine to fourty-four year age groups with 208 and 207, respectively. The least amount of increase in the per cent change occurred in the fifty-one years and over age group with 60. §gx.--The sex of the operator is revealed in Table 4.2. In the winter season of 1969-1970, 9.2 per cent of the operators were female, compared with 89.0 per cent male. In the winter season of 1970-1971, 11.2 per cent of the operators were female, compared with 88.5 per cent male. This indicates an increase in the per cent change of 148 for the females and 103 for the males between the two winter seasons. TABLE 4.2.--Distribution of Snowmobile Accident Involvement of Operators by Sex. 1969—1970 1970—1971 Per Cent Sex a a Change Number Per Cent Number Per Cent Male 300 89.0 608 88.5 103 Female 31 9.2 77 11.2 148 Unknown 6 1.8 2 .3 -66 Total 337 100.0 687 100.0 aActual computed value rounded to the nearest tenth. 36 Ownership Status.--The status of ownership of the snowmobile is shown in Table 4.3. In the winter season 1969-1970, 199 of the operators involved in snowmobile accidents owned their own snowmobile, compared to 382 in the 1970-1971 winter season. This represents an increase in the per cent change of 92. Operators involved in snow- mobile accidents on snowmobiles other than their own in- cluded 127 in the 1969-1970 winter season and 269 in the 1970-1971 winter season which is an increase in the per cent change of 112. TABLE 4.3.--Distribution of Ownership Status of Snowmobiles Involved in Accidents. 1969-1970 1970-1971 Ownership Per Cent Status Number Per Centa Number Per Centa Change Owned 199 59.0 382 55.6 92 Not Owned 127 37.7 269 39.2 112 Unknown 11 3.3 36 5.2 227 Total 337 100.0 687 100.0 aActual computed value rounded to the nearest tenth. Residence of Operators.--The number and per cent of the residence of operators involved in snowmobile accidents per county in the 1969-1970 and 1970-1971 winter seasons are listed in Table 4.4. Counties with the largest number of operators involved in snowmobile accidents were Oneida—- 12.2 per cent, Onondaga--ll.3 per cent, Oswego-—9.2 per 37 TABLE 4.4.--Distribution of Snowmobile Operators Involved in Accidents by County of Residence. 1969-1970 1970-1971 County Per Cent Number Per Centa Number Per Centa Change Albany 2 .6 9 1.3 350 Allegany 2 .6 2 .3 O Broome 3 .9 12 .8 300 Cattaragus 4 1.2 3 .4 -100 Cayuga 9 2.7 18 2.6 100 Chautauqua 3 .9 5 .7 66 Chemung 3 .9 1 .2 -200 Chenango 2 .6 7 1.0 250 Clinton 5 1.5 17 2.5 240 Columbia . . . . 12 1.8 1200 Cortland 4 1.2 7 1.0 75 Delaware 1 .3 5 .7 400 Dutchess 4 1.2 9 1.3 125 Erie 14 4.2 19 2.8 36 Essex 1 .3 10 1.5 900 Franklin 9 2.7 27 3.9 200 Fulton . . . . 7 1.0 700 Genesee . . . . 5 .7 500 Greene 2 .6 7 1.0 250 Hamilton . . . . 3 .4 300 Herkimer 6 1.8 11 1.6 83 Jefferson 28 8.3 43 6.3 54 Lewis 4 1.2 46 6.7 1050 Livingston l .3 5 .7 400 Madison 14 4.2 14 2.0 0 Monroe 10 3.0 17 2.5 70 Montgomery 5 1.5 12 1.8 140 Nassau l .3 . . . . -100 New York City 3 .9 . . . . ~300 Niagara . . . . 7 1.0 700 Oneida 41 2.2 32 4.7 700 Onondaga 38 1.3 58 8.4 56 Ontario 2 .6 7 1.0 250 Orange 2 .6 3 .4 50 Orleans 1 .3 3 .4 200 Oswego 31 9.2 34 5.0 1 Otsego 3 .9 3 .4 O Putnam . . . . 2 .3 200 Rensselaer 4 1.2 5 .7 25 Rockland l .3 l .2 O St. Lawrence 28 8.3 43 6.3 54 Saratoga 6 1.8 22 3.2 266 Schenectady . . . . 4 .6 400 38 TABLE 4.4.--Continued. 1969-1970 1970-1971 Per Cent County Number Per Centa Number Per Centa Change Schoharie l .3 1 .2 0 Schuyler 2 .6 3 .4 50 Seneca 2 .6 5 .7 150 Steuben 5 1.5 7 1.0 40 Suffolk 2 .6 l .2 -100 Sullivan 2 .6 5 .7 150 Tioga 2 .6 S .7 150 Tompkins l .3 2 .3 100 Ulster 1 .3 4 .6 300 Warren . . . . 11 1.6 1100 Washington 1 .3 21 3.0 2000 Wayne 6 1.8 41 6.0 583 Westchester 1 .3 l .2 0 Wyoming 9 2.7 4 .6 -56 Yates . . . . 5 .7 500 Out of State 6 1.8 11 1.6 83 Total 337 100.9 687 99.0 aActual computed value rounded to the nearest tenth. 39 cent, Jefferson-—8.3 per cent, and St. Lawrence--8.3 per cent in 1969-1970 and Onondaga--8.4 per cent, Lewis--6.7 per cent, Jefferson--6.3 per cent, St. Lawrence--6.3 per cent, and Wayne--6.0 per cent in 1970-1971. The counties with the largest increase in the per cent change were Washington, Columbia, Warren, and Lewis with 2000, 1200, 1100, and 1050, respectively. Table 4.5 indicates that 78.9 per cent of the 1969-1970 winter season and 75.8 per cent of the 1970-1971 winter season operators were involved in snowmobile accidents in the county in which they reside. This represents an increase in the per cent change of 92. In the 1969-1970 winter season 1.8 per cent of the snowmobile accidents involved operators from out of state and in the 1970-1971 winter season 1.6 per cent of the snowmobile accidents involved out of state operators. TABLE 4.5.--Distribution of Residence of Snowmobile Operator by County of Accident. 1969-1970 1970-1971 Residence a a Pgfiagegt Number Per Cent Number Per Cent 9 Same County 266 78.9 521 75.8 92 Other N.Y. County 65 19.3 155 22.6 138 Out of State 6 1.8 11 1.6 83 Total 337 100.0 687 100.0 aActual computed value rounded to the nearest tenth. 40 Type of Accident.--Table 4.6 shows that in the 1969-1970 winter season 4.2 per cent of the accident occurrences involved fatal injuries, however, in the winter season 1970-1971 only 3.7 per cent of the accident occurrences involved fatal injuries. Non-fatal personal injuries accounted for 73.0 per cent of the snowmobile accidents in the 1969-1970 winter season and 83.8 per cent in the 1970-1971 winter season. There was a decrease in the per cent change of 79 for fatal injuries and an increase in per cent change of 134 for non-fatal injuries. TABLE 4.6.--Distribution of Type of Snowmobile Accident. 1969-1970 1970-1971 Type Per Cent Number Per Centa Number Per Centa Change Fatal Injury 14 4.2 25 3.7 79 Non-fatal Injury 246 73.0 576 83.8 134 Property Damage 77 22.8 86 12.5 12 Total 337 100.0 687 100.0 aActual computed value rounded to the nearest tenth. Region of Injury.--Table 4.7 shows that in the 1969-1970 winter season the areas of the body of snowmobile Operators most frequently injured were the lower extremities with 28.2 per cent and the head with 16.9 per cent, and in the 1970-1971 winter season the areas of the body of snowmobile operators most frequently injured were the lower extremities with 31.2 per cent and the head with 22.1 per 41 TABLE 4.7.--Distribution of Region of Injury of Operators Involved in Snowmobile Accidents. 1969-1970 1970-1971 Per Cent Reg1on Number Per Centa Number Per Centa Change Head 57 16.9 152 22.1 167 Neck 3 .9 14 2.0 367 Chest 14 4.2 44 6 4 125 Emper Extremities 15 4.4 55 8.0 214 Back 16 4.8 36 5.2 266 Lower Extremities 95 28.2 214 31.2 125 Combination 31 9.2 50 7.3 6 Unknown 106 31.4 122 17.8 15 Total 337 100.0 687 100.0 aActual computed value rounded to the nearest tenth. cent. The area of the body that received the largest increase in the per cent change was the neck with 367. Type of Inju;y.--Table 4.8 indicates that the type of injury most frequent in the 1969-1970 winter season was the fracture with 18.1 per cent and in the 1970-1971 winter season it was the laceration with 27.9 per cent. It also shows that the type of injury that had the largest increase in the per cent change was the laceration with 226. Classification of Accident.--In both the winter seasons the classification of accident that was most frequent was the collision with a motor vehicle. As shown in Table 4.9 in the winter season of 1969-1970, 46.3 per 42 TABLE 4.8.--Distribution of Type of Injury to Snowmobile Operator. 1969-1970 1970-1971 Per Cent Type of Injury Number Per Centa Number Per Centa Change Fracture 61 18.1 180 26.2 195 Laceration 59 17.5 192 27.9 226 Contusion 30 8.9 97 14.1 223 Sprain 19 5.6 47 6 8 147 Concussion 9 2.7 22 3.2 144 Miscellaneous 44 13.1 19 2.7 —57 Combination 10 3.0 17 2 5 70 Unknown 105 31.2 113 16 5 Total 337 100.1 687 99.9 a Actual computed value rounded to the nearest tenth. cent of the accidents involved the motor vehicle and in the winter season 1970-1971, 24.4 per cent of the accidents involved the motor vehicle. However, the increase in the per cent change for collision with a motor vehicle was only 8 as compared to the increase in the per cent change of overturnings which was 362. Occurrences classified as "other" include collision with trains, going through ice, strangulation, etc., which had a per cent change increase of 200. Operation at the Time of Occurrence.--Table 4.10 shows that cruising was the most common mode of operation in both winter seasons with 62.0 per cent in 1969-1970 and 61.0 per cent in 1970-1971. The largest increase in the per cent change is apparent in the "Sporting Events, 43 .nucmu ummumwc mnu ou ompcdou msHm> pmuomeoo Hmsuomm H.ooa 5mm 0.00H hmm Hmuoe oom m.m om m.m mm umnuo cos 6. v . . . . muam moa m.o as ~.H 4 pomhno cwmnam\coamaaaoo mqm m.aH NNH «.0H mm pomflno umxflm\coamaaaoo mm «.mH mm m.¢a ma mflflnoezocm\coamaflaoo m v.4m moa m.ov mma .>.z\coamaaaoo o m.H NH o.m NH cemumm\a0amaaaoo Hm v.m mm m.m ma mesm Ho mcaooaxm «mm m.aH ONH a.» om mcacusuum>o oma m.v mm «.4 «a Who Hams mmcmno mucwu Mom Hmnfidz mucmu umm HOQESZ cofiumoflMHmmmau ucmpfioo< ucmo Hmm Hamfl-oamfi osmaummma .mucmpfloo¢ mafinoezocm mo coflpmowmwmmmau mo coflusnfluumfloll.m.v mamde 44 TABLE 4.lO.--Distribution of Snowmobile Accidents by Operation at the Time of the Occurrence. 1969-1970 1970-1971 . Per Cent Operation Number Per Centa Number Per Centa Change Crossing Highway 44 13.0 57 8.3 30 Cruising 209 62.0 419 61.0 100 Maneuvering 44 13.1 134 19.5 202 Towing 3 .9 18 2.6 500 Parked, Stopped 17 5.0 7 1.0 58 Starting 10 3.0 4 .6 -60 Racing, Sporting 1 .3 40 5.8 3900 Event Overtaking 6 1.8 4 .6 33 Slowing, Stop 3 .9 . . . . -300 Unknown . . . . 4 .6 400 Total 337 100.0 687 100.0 aActual computed value rounded to the nearest tenth. Racing" area of operation which was 3900. The area with the least increase in the per cent of change was crossing the highway with 30. Apparent Cause or Contributing Circumstance.-- Imprudent speed and reckless driving combined were the apparent cause or contributing circumstance for 53.4 per cent of the population for the 1969-1970 winter season and 63.0 per cent of the 1970-1971 winter season as shown in Table 4.11. The apparent cause or contributing circumstance that exhibited the largest increase in the per cent change is unfamiliarity of terrain at 1367. Lack of experience 45 .nucmu ummummc on» on pmpcsou msHm> pwusmaoo Hmsuocm o.ooa awe o.ooa 5mm Hmuoe m m.m mm m.m mm azoaxca om- m. m m.m NH wammoHo 00» mcazoflfiom eons 4.6 we m. m camuume mo Spaumaaasmmco no- 6. a m.m NH umnuo Sb cmxmuum>o Hm v.m mm m.m ma mocmaummxm mo xomq mam H.a me v.~ m suaaanama> uoom mma ~.0H on o.m am “swamaswm m>auommmo mm- m.¢ mm a.mH mm camam op muaaamm mmm m.mm mmm m.om on mafl>auo mmmaxomm NH H.m~ oom m.~m OHH cmmmm unmasumeH mmcmno ucmo mom monasz mucmu mom nmnEdz mocmumasouflu mcflunnfiuucoo pcwu mom mmsmu ucmummmm Hemauonmfl osmaummma .mocmumesouau mcwusnwnucoo no mmsmo ucmnmmmm ma mucmpfioo< mawnoEBOCm mo cowusnwhumwoll.aa.e mamfie 46 and imprudent speed exhibited the least increase in amount of per cent change at 21 and 12, respectively. Vehicle Registration Status.--Tab1e 4.12 shows that in the 1969-1970 winter season the counties with the highest registrations were Erie--2877, Oneida--2729, and Onondaga-- 2516 and in the 1970-1971 winter season Oneida--10,096, Onondaga--7698, and St. Lawrence--7272 were the highest. No county decreased in the number of registrations. Rock- land had the highest increase in per cent change and Chautauqua had the lowest increase in per cent change at 754 and 109, respectively. Table 4.13 indicates the status of registration of those snowmobiles involved in accidents. In the 1969-1970 winter season 50.7 per cent of the snowmobiles were not registered and in winter season 1970-1971 36.7 per cent were not registered. In the 1969-1970 winter season 47.8 per cent of the snowmobiles were registered and in the 1970-1971 winter season 63.2 per cent were registered. The per cent change for registered snowmobiles was an increase of 108 and for unregistered snowmobiles was an increase of 47. The vehicle and traffic laws relative to snowmobile registration for winter season 1969-1970 may be found in Appendix D and for winter season 1970-1971 in Appendix E. 47 TABLE 4.12.--Distribution of New York Snowmobile Registration by County. 1969-1970 1970-1971 Per Cent County Number Per Centa Number Per Centa Change Albany 342 .9 2286 1.8 568 Allegany 262 .7 1044 .8 298 Broome 479 1.3 1963 1.5 310 Cattarague 768 2.0 1841 1.4 140 Cayuga 808 2.2 1751 1.3 117 Chautauqua 1034 2.8 2157 1.6 109 Chemung 157 .4 516 .4 229 Chenango 672 1.8 1946 1.5 190 Clinton 589 1.6 3683 2.8 525 Columbia 192 .5 1073 .8 459 Cortland 638 1.7 1523 1.2 139 Delaware 306 .8 1841 1.4 502 Dutchess 292 .8 1591 1.2 445 Erie 2877 7.7 6088 4.7 112 Essex 291 .8 2300 1.8 690 Franklin 536 1.4 2842 2.2 430 Fulton 614 1.6 2427 1.9 295 Genesee 377 1.0 1237 .9 228 Greene 248 .6 1334 1.0 438 Hamilton 102 .2 746 .5 631 Herkimer 1102 2.9 4084 3.1 270 Jefferson 2110 5.6 5652 4.3 168 Lewis 590 1.6 3029 2.3 413 Livingston 465 1.2 1429 1.1 207 Madison 1215 3.2 3429 2.7 186 Monroe 1749 4.6 5291 4.0 202 Montgomery 513 1.4 2280 1.7 344 Nassau 48 .1 214 .2 346 New York City 26 .1 107 .1 312 Niagara 434 1.2 1372 1.0 216 Oneida 2729 7.3 10,096 7.7 270 Onondago 2516 6.7 7693 5.9 206 Ontario 558 1.5 1698 1.3 204 Orange 155 .4 1227 .9 692 Orleans 269 .7 825 .6 207 Oswego 2121 5.7 5600 4.3 164 Otsego 459 1.2 2006 1.5 337 Putnam 52 .1 264 .2 408 Rensselaer 214 .5 1589 1.2 642 Rockland 35 .1 299 .2 754 St. Lawrence 1893 5.1 7272 5.6 284 Saratoga 680 1.8 3310 2.5 387 Schenectady 401 1.1 1732 1.3 332 48 TABLE 4.12.--Continued. 1969-1970 1970-1971 Per Cent County Number Per Centa Number Per Centa Change Schoharie 372 1.0 1411 1.1 279 Schuyler 213 .5 561 .4 163 Seneca 248 .6 790 .6 218 Steuben 583 1.6 1926 1.5 230 Suffolk 42 .1 212 .1 405 Sullivan 231 .6 1460 1.1 532 Tioga 257 .7 785 .6 205 Tompkins 564 1.5 1353 1.0 140 Ulster 234 .6 1679 1.3 618 Warren 258 .7 1785 1.4 592 Washington 225 .6 1669 1.3 642 Wayne 1395 3.7 3563 2.7 155 Westchester 73 .2 428 .3 486 Wyoming 577 1.5 1502 1.2 160 Yates 173 .5 515 .3 198 Total 37,410 99.3 130,396 99.3 aActual computed value rounded to the nearest tenth. 49 TABLE 4.13.--Distribution of Registered Status of Snowmobiles Involved in Accidents. 1969-1970 1970-1971 . Per Cent Registered a Chan e Status Number Per Cent Number Per Centa 9 Registered 161 47.8 434 63.2 107 Not Registered 171 50.7 252 36.7 47 Unknown 5 1.5 1 .2 -80 Total 337 100.0 687 100.1 aActual computed value rounded to the nearest tenth. Vehicle Make.--Tab1e 4.14 shows that in both the 1969-1970 and 1970-1971 winter seasons that Ski-Doo vehicles were most frequently involved in accidents with 47.8 per cent and 55.2 per cent, respectively. Table 4.14 also shows that there were eleven more makes of snowmobiles involved in accidents in the 1970-1971 winter season than the 1969-1970 winter season. Sno Prince, Massy Fergeson, and Artic Cat showed the largest increase in per cent change at 700, 700, and 495, respectively. Horsepower.--Of the 77.2 per cent of the snow- mobiles where horsepower information was available, as shown in Table 4.15, 33.5 per cent were in the 17-21 range in the 1969-1970 winter season. In 1970-1971 where 94.0 per cent of the snowmobiles had horsepower information available, as shown in Table 4.9, 23.7 per cent were in the 17-21 range. The 17-21 horsepower range was most 50 TABLE 4.14.--Distribution of Snowmobiles Involved in Accidents. 1969-1970 1970-1971 Per Cent Name Number Per Centa Number Per Centa Change Ski Doo 161 47.8 242 35.2 50 Polaris 21 6.2 39 5.7 85 Sno-Jet 23 6.8 29 4.2 26 Moto Ski 13 3.9 43 6.3 233 AMF-Skidaddler 10 3.0 24 3.5 140 Ski Roule 11 3.3 16 2.3 46 Artic Cat 17 5.0 101 14.7 495 Scorpion 16 4.8 25 3.6 56 Fox Trac 2 .6 2 .3 O Rupp 5 1.5 22 3.2 340 Boaski 11 3.3 13 1.9 27 Alouette 4 1.2 7 1.0 75 Evinrude 6 1.8 7 1.0 17 Yamaha 5 1.5 8 1.2 60 Sno Squire 1 .3 3 .4 50 Starcraft 3 .9 7 1.0 133 Massey Ferguson . . . . 7 1.0 700 Ariens Arrow 1 .3 5 .7 25 Northway 1 .3 3 .4 200 Wildcat 1 .3 1 .2 O Chaparral l .3 5 .7 400 Viking . . . . 3 .4 300 Johnson 2 .6 4 .6 100 Bolens D/A . . . . 2 .3 200 Mercury . . . . 4 .6 400 Sno Prince . . . . 7 1.0 700 Sno Bug 3 .9 . . . . -3OO Wheel Horse . . . . 2 .3 200 Yukon King 2 .6 1 .2 -100 Sno Ghia 1 .3 2 .3 100 Eskimo . . . . 2 .3 200 Home Lite . . . . 2 .3 200 Tradewinds . . . . 2 .3 200 Auto Ski . . . . 4 .6 400 Husky . . . . 2 .3 200 Auberg 4 1.2 . . . . -400 Unknown 11 3.3 38 5.5 245 Total 337 100.0 687 99.5 aActual computed value rounded to the nearest tenth. 51 TABLE 4.15.--Distribution of Horsepower of Snowmobiles Involved in Accidents. 1969-1970 1970-1971 Per Cent Horsepower a Change Number Per Cent Number Per Centa 0-16 59 17.5 108 15.7 83 17-21 113 33.5 163 23.7 44 22-26 37 11.0 154 22.4 316 27-31 33 9.8 96 14.0 190 32-36 6 1.8 74 10.8 1103 37-41 3 .9 19 2.8 534 42-46 9 2.7 10 1.5 11 47-51 . . . . 4 .6 400 52-56 . . . . 1 .2 100 57-over . . . . 17 2.5 1700 Unknown 77 22.8 41 6.0 -47 Total 337 100.0 687 100.2 aActual computed value rounded to the nearest tenth. frequent for both winter seasons. There was a total increase in the per cent change of 2200 for the horsepower range of 47 and over. Alone, in the horsepower range of S7 and over there was an increase in the per cent change of 1700. The next largest increase in the per cent change at 1103 was the horsepower range of 32-36. Environment County of Accident Occurrence.--Tab1e 4.16 discloses that Onondaga, Oswego, and Oneida counties had the highest incidence of accident occurrence with 12.5 per cent, 11.3 per cent, and 10.7 per cent, respectively for the 1969-1970 52 TABLE 4.16.--Distribution of Snowmobile Accidents by County of Occurrence. 1969-1970 1970-1971 Per Cent County a a Change Number Per Cent Number Per Cent Albany 2 .6 10 1.5 400 Allegany 3 .9 . . . . -300 Broome 3 .9 9 1.3 200 Cattaraugus 6 1.8 5 .7 -16 Cayuga 6 1.8 21 3.1 250 Chautauqua 3 .9 6 .9 100 Chemung 1 .3 . . . . -100 Chenango 3 .9 11 1.6 267 Clinton 6 1.8 16 2.3 167 Columbia . . . . 11 1.6 1100 Cortland 2 .6 5 .7 250 Delaware 1 .3 5 .7 400 Dutchess 4 1.2 11 1.6 200 Erie 12 3.6 16 2.3 33 Essex 1 .3 13 1.9 1200 Franklin 10 3.0 37 5.4 270 Fulton 1 .3 6 .9 500 Genesee 1 .3 4 .6 300 Greene 3 .9 6 .9 100 Hamilton . . . . 4 .6 400 Herkimer 8 2.4 27 3.9 238 Jefferson 24 7.1 30 4.4 25 Lewis 7 2.1 58 8.4 728 Livingston . . . 6 .9 600 Madison 16 4.8 14 2.0 -16 Monroe 8 2.4 12 1.8 50 Montgomery 4 1.2 9 1.3 125 Nassau . . . . . . . . . . New York City . . . . . . . . . . Niagara . . . . 4 .6 400 Oneida 36 10.7 29 4.2 -19 Onondaga 42 12.5 61 8.9 45 Ontario 3 .9 8 1.2 167 Orange 1 .3 1 .2 0 Orleans 1 .3 6 .9 500 Oswego 38 11.3 23 3.4 -38 Otsego 3 .9 3 .4 O Putnam . . . . . . . . . . Rensselaer 2 .6 3 .4 50 Rockland 1 .3 . . . . -100 St. Lawrence 30 8.9 45 6.6 50 Saratoga 6 1.8 18 2.6 200 Schenectady . . . . 1 .2 100 TABLE 4.16.--Continued. 53 1969-1970 1970-1971 Per Cent County Change Number Per Centa Number Per Centa Schoharie 2 .6 2 .3 O Schuyler 3 .9 3 .4 0 Seneca 2 .6 5 .7 150 Steuben 8 2.4 8 1.2 0 Suffolk . . . . . . . . . Sullivan 3 .9 5 .7 67 Tioga 1 .3 6 .9 500 Tompkins 1 .3 3 .4 200 Ulster 1 .3 4 .6 300 Warren . . . . 19 2.8 1900 Washington 4 1.2 28 4.1 600 Wayne 5 1.5 36 5.2 620 Westchester . . . . 1 .2 100 Wyoming 7 2.1 9 1.3 28 Yates . . . . 4 .6 400 Unknown 2 .6 . . . -200 Total 337 100.6 687 100.2 aActual computed value rounded to the nearest tenth. 54 winter season. Table 4.10 also shows that Onodaga, Lewis, and St. Lawrence counties had the highest incidence of accident occurrence with 8.9 per cent, 8.4 per cent, and 6.6 per cent, respectively in the 1970-1971 winter season. Warren, Essex, and Columbia counties show the greatest increase in the per cent change with 1900, 1200, and 1100, respectively. Oswego county, one with high accident occurrence in the winter season of 1969-1970 showed a decrease in the per cent change of 38. Location.--Table 4.17 shows that 59.4 per cent of the snowmobile accidents in the 1969-1970 winter season occurred on the roadway. However, in the 1970-1971 winter season only 40.9 per cent of the snowmobile accidents occurred on the roadway. The largest increase in the per cent change was the use of trails at 770. Another large increase in the per cent change was the use of the woods at 400. The per cent change for snowmobile accidents occurring on a lake or pond decreased 367. Surface Condition.--Tab1e 4.18 indicates that the road condition most common to snowmobile accidents was smooth with 76.0 per cent for the 1969-1970 winter season and 52.3 per cent for the 1970—1971 winter season, respectively. The classification of "other" includes railroad beds, ice, hill, etc., which exhibited an increase in the per cent change of 425. The increase of the 55 TABLE 4.17.--Distribution of Location of Snowmobile Accident by Terrain. 1969-1970 1970-1971 Per Cent Terrain a a Change Number Per Cent Number Per Cent Lake or Pond 14 4.2 3 .4 -78 Woods 5 1.5 25 3.6 400 Field or Yard 99 29.4 262 38.1 164 Trail 10 3.0 87 12.7 770 Roadway 200 59.4 281 40.9 40 Unknown 9 2.6 29 4.2 250 Total 337 100.1 687 99.9 aActual computed value rounded to the nearest tenth. TABLE 4.18.--Distribution of the Surface Condition of the Snowmobile Accident Location. 1969-1970 1970-1971 Surface Per Cent Condition Number Per Centa Number Per Centa Change Smooth 256 76.0 359 52.3 41 Rough 65 19.3 275 40.0 323 Other 4 1.2 21 3.1 425 Unknown 12 3.6 32 4.7 116 Total 337 100.1 687 100.1 aActual computed value rounded to the nearest tenth. 56 per cent change for smooth surface was 40 and the increase for the per cent change for rough surface was 323. Week of Season.--Tab1e 4.19 shows that during the week of December 28, 1969 to January 1, 1970, 58 snowmobile accidents occurred which accounted for 17.2 per cent of the total. Table 4.19 also shows that during the week of January 17, 1971 to January 23, 1971, 66 snowmobile accidents occurred which accounted for 9.6 per cent of the total. The week comparable in the 1970-1971 winter season to the week of highest frequency in the 1969-1970 winter season (58 snowmobile accidents) included 63 snowmobile accidents which was the second highest frequency in the 1970-1971 winter season. Table 4.19 shows that the snow- mobile accidents in the winter season 1970-1971 started a week later and lasted a month longer than in the winter season 1969-1970. Day_of Week.--Tab1e 4.20 shows that the combination of Saturday and Sunday account for a majority of the snow- mobile accidents with 56.4 per cent in the 1969—1970 winter season and 54.0 per cent in the 1970-1971 winter season. The largest increases in per cent change occurred on Thursday and Friday with 155 and 122, respectively. Hour of Day.--Tab1e 4.21 shows that in both winter seasons the hour of day when snowmobile accidents were most likely to occur is from 2:01 P.M. to 5:00 P.M. with 28.8 S7 .nucwu ummummc on» on pmocson mSHm> omusmeoo Hmsuoém m.mm Nam o.OOH Nmm Hmuoe m. N NHns HHns NN m.H m OHue H -v HN m.H m m -4 NNIH N.H H NNum NNum 0N m.s Hm NNum HN-m v.m HH HNum mH-m NH m.N NH 0N-m «H-m m.m NH «Hum m .m NH N.H mm HHum N .m N.N m N -m H .m NH o.m mm o .m mNuN m.m NH NNuN NN-N 8H 0.0 Hs NNuN HNnN H.N mN HN-N mH-N mH H.m NN ON-N HHnN m.m NH HHuN m -N «H H.m Nm HHuN N -N o.m NH N -N H -N NH N.m mm m -N HmuH H.N 4N Hm-H mN-H NH m.m mm om-H «NuH m.m mN HNnH NH-H HH m.m so HNuH NH-H o.m NH NH-H HH-H 0H o.m mm oHuH OH-H N.m NH 0H-H s -H m m.H Hm m -H m -H N.NH mm m -H mN-NH N N.m mm N -H NNuNH m.m mN NNuNH HNuNH N H.N as oNuNH ON-NH N.m NN ONuNH HHnNH m H.¢ mN mHuNH NHuNH v.N m NH-NH N -NH m m.H NH NHuNH 8 -NH o.m NH o -NH om-HH v N. m m -NH mNnHH m. H mN-HH NN-HH m H. v mNuHH NNuHH N. H NN-HH oHnHH N m. s HNnHH mHuHH m. H mHuHH m -HH H MHGTU Hmm HmQESZ mTHMD much Hmm HQQESZ mmumnu HGQESZ HNmHuoNNH onHummmH xmmz .c0mmmm mo xomz an mucooflood mHflnoszocm mo coHuanuumHonl.mH.v mqmda 58 TABLE 4.20.--Distribution of Day of Week of the Snowmobile Accident. 1969-1970 1970-1971 Per Cent Day Number Per Centa Number Per Centa Change Saturday 84 25.0 162 23.6 93 Sunday 106 31.4 202 29.4 90 Monday 21 6.2 43 6.3 104 Tuesday 22 6.3 44 6.4 100 Wednesday 24 7.1 42 6.1 75 Thursday 40 11.9 102 14.8 155 Friday 40 11.9 89 13.0 122 Unknown 0 0.0 3 .4 300 Total 337 99.8 687 100.0 aActual computed value rounded to the nearest tenth. per cent in the 1969-1970 winter season and 30.3 per cent in the 1970-1971 winter season. The hour of the day with the largest per cent change is 5:01 A.M. to 8:00 A.M. with 1300. The period between 2:01 A.M. and 5:00 A.M. exhibits the smallest increase in per cent change at 25. Weather.--Table 4.22 indicates that the most frequent weater condition during snowmobile accidents was "clear" with 57.9 per cent in the 1969-1970 winter season. Table 4.22 also shows that the "clear" weather condition was the most frequent in snowmobile accidents with 70.4 per cent for the 1970-1971 winter season. The largest increase in the per cent change was in the category "clear" with 148. The "cloudy" classification saw a decrease in 59 .nucmu ummHmmc mnu on owocsou osHm> pmusmfioo Hmsuomm N.OOH Nam N.NH Nmm Hmuoe omm m.H NH 6. N czocxco NN N.NH QNH N.NN NN .e.m oouHH-.s.m Houm NNH m.mH VHH N.NH we .e.m ooum -.e.m Houm «HH m.om NON N.NN Nm .s.m oo.m -.e.m HouN NHH N.NH Nm m.HH o4 .e.m oouN -.e.m HouHH 6N «.4 cm o.m NH .s.m oouHH-.a.m Houm oomH m.H NH 0 o .e.m ooum -.e.m Houm mN m.H OH v.N m .s.m ooum -.e.m HouN mm H.HH 6N N.¢H we .e.m oouN -.e.m HouHH mmcmnu mucmu Mom HmnEdz mucmo mom umnfidz mafia ucmo umm NNmH-0NaH HNmHummmH .wmo no user an mucmpwood mawnos3ocm mo coHunnHHpmHQII.HN.v wands 60 TABLE 4.22.-—Distribution of the Weather Condition at the Time of the Snowmobile Accident. 1969-1970 1970-1971 Per Cent Weather Change Number Per Centa Number Per Centa Clear 195 57.9 484 70.4 148 Cloudy 42 12.5 4 .6 -90 Rain 10 3.0 9 1.3 -10 Snow 77 22.8 133 19.4 73 Unknown 13 3.9 57 8.3 327 Total 337 100.1 687 100.0 aActual computed value rounded to the nearest tenth. the per cent change of 90. There was also a decrease in the per cent change for "rain" of 10. Visibility.--Table 4.23 indicates that the visi- bility at the time of over a majority of the accidents in winter season 1969-1970 was "poor-dark, lighted or un- lighted" (53.1%) and that well over a majority of the snowmobile accidents in the 1970-1971 winter season occurred in "good-daylight" visibility (62.7%). There was an increase in the per cent change for "good—daylight" of 229 and a decrease in the per cent change for "poor-dark, lighted or unlighted" of 54. Selected Factorgof the On-Road Sub-Group Data from the Department of Motor Vehicles accident report MV-104 and Office of Parks and Recreation accident «NJ i 61 TABLE 4.23.--Distribution of Visibility at the Time of the Snowmobile Accident. 1969-1970 1970-1971 Per Cent Visibility a Change Number Per Cent Number Per Centa Good-Daylight 131 38.9 431 62.7 229 Fair-Dawn or Dusk 24 7.1 146 21.2 509 Poor-Dark, Lighted or Unlighted 179 53.1 82 11.9 -54 Unknown 3 .9 27 3.9 800 Total 337 100.0 687 99.7 aActual computed value rounded to the nearest tenth. report MRV-ZOZS relative to the operator, the vehicle, and the environment pertaining to the sub-group of 200 on-road snowmobile accidents in the winter season 1969-1970 and 281 on-road snowmobile accidents in the winter season 1970-1971 are presented in this section. The expected increase in per cent change for each of the selected factors in the on-road sub-group is 40. Operator Agg.--The age of the on-road sub-group is depicted in Table 4.24. The ages ranged from under fourteen to over fifty-one years. The mean, median, and mode of the age of the on-road sub-group in the 1969-1970 winter season were 24.9 years, 22.5 years, and 17.5 years, respectively. The mean, median, and mode of the ages for the winter season of 62 TABLE 4.24.--Distribution of On-Road Sub-Group by Age. 1969-1970 1970-1971 Per Cent Years a Change Number Per Cent Number Per Centa 0-14 15 7.5 43 15.3 186 15-20 62 31.0 90 32.0 45 21-26 45 22.5 42 15.0 -8 27-32 24 12.0 35 12.5 46 33-38 18 9.0 34 12.1 89 39-44 8 4.0 16 5.7 100 45-50 4 2.0 10 3.6 150 Sl-Over 9 4.5 9 3.2 0 Unknown 15 7.5 2 .7 -650 Total 200 100.0 281 100.1 Mean Median Mode 1969-1970 24.9 Years 22.5 Years 17.5 Years 1970-1971 23.5 Years 21.4 Years 17.5 Years Per Cent Change 6 5 0 aActual computed value rounded to the nearest tenth. 63 1970-1971 were 23.5 years, 21.4 years, and 17.5 years, respectively. The largest increase in per cent change occurred in the under fourteen and forty-five to fifty age groups with 186 and 150, respectively. A decrease in the per cent change occurred in the twenty—one to twenty-six age group of 8. §g§.--The sex of the on-road sub-group operator is revealed in Table 4.25. In the winter season of 1969-1970, 8.2 per cent of the operators were female, compared with 89.0 per cent male. In the winter season of 1970-1971, 7.8 per cent of the operators were female, compared with 91.8 per cent male. This indicates an increase in the per cent change of 45 for males and 28 for females between the two winter seasons. TABLE 4.25.--Distribution of On-Road Snowmobile Accident Involvement of Operators by Sex. Sex 1969-1970 1970-1971 Per Cent a a Change Number Per Cent Number Per Cent Male 178 89.0 258 91.8 45 Female 17 8.5 22 7.8 28 Unknown 5 2.5 1 .4 -80 Total 200 100.0 281 100.0 aActual computed value rounded to the nearest tenth. 64 Ownership Status.--Tab1e 4.26 reveals that 60.0 per cent of the snowmobiles involved in on-road accidents were owned by the operator in the 1969-1970 winter season. This compares with 50.5 per cent of the snowmobiles that were involved in on-road accidents were owned by the operator in the winter season 1970-1971. In the winter season 1969- 1970, 37.0 per cent of the snowmobiles were not owned by the operator and in the 1970-1971 winter season 44.8 per cent of the snowmobiles were not owned by the operator. The increase in the per cent change for ownership was 18 and for lack of ownership was 70. TABLE 4.26.--Distribution of Ownership Status of Snowmobiles Involved in On-Road Accidents. 1969-1970 1970-1971 Ownership Per Cent Status Number Per Centa Number Per Centa Change Owned 120 60.0 142 50.5 18 Not Owned 74 37.0 126 44.8 70 Unknown 6 3.0 13 4.6 116 Total 200 100.0 281 99.9 aActual computed value rounded to the nearest tenth. Residence of Operators.--Table 4.27 shows the number and per cent of snowmobile operators involved in on- road accidents by county of residence. In the winter season of 1969-1970 Oneida, Oswego, St. Lawrence, and Jefferson counties had the highest frequency of residents 65 TABLE 4.27.-~Distribution of Snowmobile Operators Involved in On-Road Accidents by County of Residence. 1969-1970 1970-1971 Per Cent County Change Number Per Centa Number Per Cent Albany 1 .5 1 .4 O Allegany 1 .5 1 .4 O Broome 1 .5 3 1.1 200 Cattaragus 2 1.0 2 .7 O Cayuga 8 4.0 6 2.1 ~25 Chautauqua 3 1.5 4 1.4 33 Chemung 3 1.5 1 .4 ~67 Chenango . . . . 4 1.4 400 Clinton 4 2.0 10 3.6 150 Columbia . . . . 5 1.8 500 Cortland 1 .5 5 1.8 400 Deleware 1 .5 3 1.1 200 Dutchess 2 1.0 4 1.4 100 Erie 9 4.5 8 2.8 ~11 Essex 1 .5 5 1.8 400 Franklin 7 3.5 11 3.9 57 Fulton . . . . 2 .7 200 Genesee . . . . 4 1.4 400 Greene 2 1.0 4 1.4 100 Hamilton . . . . 1 .4 100 Herkimer 5 2.5 6 2.1 20 Jefferson 15 7.5 19 6.8 27 Lewis 4 2.0 20 7.1 400 Livingston l .5 3 1.0 200 Madison 11 5.5 7 2.5 ~36 Monroe 1 .S 9 3.2 800 Montgomery 3 1.5 5 1.8 66 Nassau 1 .5 . . . . ~1OO New York City 1 .5 . . . . ~lOO Niagara . . . . 2 .7 200 Oneida 29 14.5 22 7.8 24 Onondaga 12 6.0 15 5.3 25 Ontario 2 1.0 2 .7 0 Orange 2 1.0 2 .7 0 Orleans 1 .5 1 .4 0 Oswego 17 8.5 17 6.0 0 Otsego 3 1.5 3 1.0 0 Putnam . . . . 2 .7 200 Rensselaer 2 1.0 3 1.0 50 Rockland . . . . 1 .4 100 St. Lawrence 17 8.5 19 6.8 12 Saratoga 4 2.0 2 .7 ~50 Schenectady . . . . l .4 100 66 TABLE 4.27.--Continued. 1969-1970 1970-1971 Per Cent County a a Change Number Per Cent Number Per Cent Schoharie . . . . . . . . . . Schuyler 2 1.0 1 .4 ~50 Seneca 2 1.0 . . . . ~200 Steuben 1 .5 2 .7 100 Suffolk . . . . . . . . . . Sullivan 2 1.0 .7 O Tioga 1 .5 1 .4 O Tompkins 1 .5 . . . . ~100 Ulster 1 .5 1 .4 0 Warren . . . . 6 2.1 600 Washington . . . . 5 1.8 500 Wayne 4 2.0 9 3.2 125 Westchester 1 .5 . . . . ~100 Wyoming 5 2.5 1 .4 ~400 Yates . . . . 4 1.4 400 Out of State 3 1.5 2 .7 ~33 Total 200 100.0 281 99.3 aActual computed value rounded to the nearest tenth. 67 involved in on~road snowmobile accidents with 29, 17, 17, and 15, respectively. Oneida, Lewis, Jefferson, and St. Lawrence counties had the highest frequency of residents involved in on~road snowmobile accidents in the winter season of 1970-1971 with 22, 20, 19, and 19, respectively. The counties with the largest increase in the per cent change were Monroe-800, Warren-600, Columbia-500, and Washington-500. Wyoming county experienced a decrease in the per cent change of 400. Table 4.28 depicts the number of per cent of the on~road snowmobile operators involved in accidents that occurred in the county of their residence. In the winter season of 1969-1970, 78.0 per cent of the operators and in the winter season of 1970-1971 75.4 per cent of the operators were accidents involved in the county of their residence. This represents an increase in the per cent change of 28. One and five tenths per cent of the 1969- 1970 winter season and eight tenths per cent of the 1970~ 1971 winter season involved operators from out of state. Type of Accident.~-The type of snowmobile accident most frequent in on~road occurrences is the nonfatal injury accident with 66.0 per cent in winter season 1969-1970 and 77.9 per cent in winter season 1970-1971, as shown in Table 4.29. In each of the winter seasons, eleven snow- mobile accidents involved fatal injuries. There was no 68 TABLE 4.28.-~Distribution of Residence of Snowmobile Operators Involved in On-Road Accidents by County of Occurrence. 1969-1970 1970-1971 Per Cent Residence a Change Number Per Cent Number Per Centa Same County 156 78.0 212 75.4 28 Other N.Y. County 41 20.5 67 23.8 63 Out of State 3 1.5 2 .8 33 Total 200 100.0 281 100.0 a Actual computed value rounded to the nearest tenth. TABLE 4.29.--Distribution of Type of On-Road Snowmobile Accident. 1969-1970 1970-1971 Per Cent Type a a Change Number Per Cent Number Per Cent Fatal Injury 11 5.5 11 3.9 O Nonfatal Injury 132 66.0 219 77.9 66 Property Damage 57 28.5 51 18.2 12 Total 200 100.0 281 100.0 aActual computed value rounded to the nearest tenth. 69 increase in the per cent change for fatal injuries and an increase in nonfatal injuries of 66 per cent change. Region of Injury.~~Table 4.30 shows that the areas of the body of snowmobile operators most frequently injured in on~road snowmobile accidents in both winter seasons were the lower extremities (25.0 per cent in winter season 1969- 1970 and 27.4 per cent in winter season 1970—1971). The areas of the body that received the largest increase in the per cent change were the neck with 300 and the chest with 250. TABLE 4.30.-~Distribution of Region of Injury of Operators Involved in On-Road Snowmobile Accidents. 1969-1970 1970-1971 , Per Cent Region a a Change Number Per Cent Number Per Cent Head 33 16.5 63 22.4 91 Neck 1 .5 4 1.4 300 Chest 6 3.0 21 7.5 180 Upper Extremities 7 3.5 19 6.8 250 Back 5 2.5 14 5.0 172 Lower Extremities 50 25.0 77 27.4 54 Combinations 23 11.5 23 8.2 0 Unknown 75 37.5 60 21.4 ~20 Total 200 100.0 281 100.1 aActual computed value rounded to the nearest tenth. 70 Type of Injury.~~Tab1e 4.31 shows that in the winter season of 1969-1970 the type of injury most frequently encountered in on~road snowmobile accidents was the fracture at 14.0 per cent and the laceration at 14.0 per cent. Table 4.31 also shows that in the winter season of 1970- 1971 the type of injury most frequently encountered in on- road snowmobile accidents was the fracture at 29.2 per cent. The type of injury with the largest increase in the per cent change was the fracture with 193. Contusion was the type of injury which had the least amount of increase at 64. TABLE 4.3l.--Distribution of Type of Injury to Snowmobile Operators in On-Road Accidents. Type of 1969-1970 1970-1971 Per Cent Injury Number Per Centa Number Per Centa Change Fracture 28 14.0 82 29.2 193 Laceration 28 14.0 59 21.0 110 Contusion 22 11.0 36 12.8 64 Sprain 8 4.0 19 6.8 137 Concussion 7 3.5 12 4.3 72 Miscellaneous 25 12.5 9 3.2 ~64 Combination 8 4.0 5 1.8 ~38 Unknown 74 37.0 59 21.0 ~21 Total 200 100.0 281 100.1 a Actual computed value rounded to the nearest tenth. 71 Classification of Accident.-~Table 4.32 indicates that 71.5 per cent of the on~road snowmobile accidents involved collision with a motor vehicle in the winter season of 1969-1970 and in the winter season 1970-1971 only 53.7 per cent of the on~road snowmobile accidents involved a collision with a motor vehicle. Those figures for collision with a motor vehicle yield an increase in per cent change of only 6. Large increases in the per cent change are found in the classifications of "overturning"~~ 650, "collision with hidden object"-~500, and "collision with fixed object"~~400. The classification of "skidding or bump" had a decrease in per cent change of 20. Table 4.33 shows the classification of the on~road snowmobile accidents as it relates to the kind of operation at the time of the accident. The operation at the time of the accident was divided into operations permitted on~road by the Harris Bill (crossing the highway) and operations prohibited on~road by the Harris Bill (cruising, maneuvering, towing, parked, stopped, starting, racing, sporting event, overtaking, and slowing). In operations both permitted and prohibited on~road by the Harris Bill, the classification of collision with a motor vehicle was not prevalent. Of the snowmobiles involved in accidents while crossing the highway (permitted operation by the Harris Bill) 95.2 per cent were in collision with a motor vehicle in the 1969- 1970 winter season and 92.1 per cent in the 1970-1971 winter season. Of the snowmobiles involved in accidents while 72 .nucmu ammumm: on» on popcsou msHm> pmusmEoo Hmsuodm N.NN HNN N.NNH NON Hmuoa oom o.N NH o.N N umnuo . . . . . . . . . . muHm oom N.H N . . . . nomnno cmoon\conHHHoo NON N.N NN N.N N nommno omme\aonHHHoo NN N.NH NN N.NH NN mHHnoazocm\conHHHoo N N.NN HNH N.HN NNH mHoHnm> Houoz\:onHHHoo NNH N.N N N.H N cemummxconHHHoo NN- N.N N N.N NH mesa no NcHoonN NNN N.NH om o.N N Nchnsuum>o o N. N o.H N Hmo HHmm “C00 Hmm HGQEDZ #GTU Hmm MODES—A umwmmmwm N N :oHumonHmmmHo ucmoHooa HhmHIOBmH onmalmoma .mucmoHooa mHHnoszoam omomuco mo coHumoHuHmmmHo mo coHuanuumHouu.NN.N mHmaa HJQU-U HaruIHAV.— ah.JréaW-~.enurJ kira Fu$¢al-u| 73 .pmounco pmmHQHnoum mcHonm .mcmeuuo>o .ucm>m vcHuuomm .mcHomu .mcHuumum .omamoum .poxumm .mcHsou .mcHum>swcms .mchHsuoll>mzann mcwmmouo umwoxw @cHnumum>mo .amaann mchmouO n .cucmu ammummc map on popcsou 05Hm> pwusmeoo Hmsuodm H.00H omm m.mm mmH 0.00H Hm 0.00H mv Hmuoa 0mm v.5 NH H.m m 00H.. v.m H umnuo 00m N.N m .. .. .. .. .. .. .. uumhflo CTUUHE \conHHHoo mmm m.OH mm m.~ v 00H.. .. .. v.m H pomflno omme \COHmHHHou mm N.mH om o.bH hm .. .. .. .. .. mHHnoe3ocm \conHHHoo 0 «.mV vOH m.mo VOH om H.Nm Nv «.mm mm mHoHnm> Houoz \conHHHoo no m.m m m.H m oom m.m N .. .. cOmumm \QOHmHHHOO om: o.m N m.@ 0H 00H o.m H .. .. pme mum o.mH mm m.m v 00H o.m H .. .. cusuum>o o m. N ~.H m o o. o o. o mmo HHom mmcmnu mw * mm x mmcmno aw t aw x ucou mom HNmHIONmH osmHlmmmH ucmu Mom HhmHnobmH OhmHummmH coHuooHMHmmmHO coHumHomO nouHQHnoum coHumummo pmquEHom .HHHm mHuumm on» wn ooanHnoum no pwuuHEhmm coHumummO an mucmoHood QHHQOEzocm poomlco mo coHumoHMHmmmHo mo coHuanuumHoll.mm.v mqm¢a '(J 74 operating on~road in a manner other than crossing the road (prohibited operation by the Harris Bill) 65.3 per cent were in collision with a motor vehicle in the 1969—1970 winter season and 45.2 per cent in the 1970-1971 winter season. The classification of accident, collision with a motor vehicle, which occurred during an operation permitted on~road by the Harris Bill had an increase in per cent change of 20. The classification of accident, collision with a motor vehicle, which occurred during an operation prohibited on~road by the Harris Bill had no increase in per cent change. The classifications of accidents over~ turn, collision with a fixed object, and collision with a hidden object while in operation prohibited on~road by the Harris Bill had large increases in per cent change of 575, 525, and 500, respectively. Operation at the Time of Occurrence.~~Table 4.34 reveals that the action of crossing the highway which was permitted in both winter seasons was the operation at the time of occurrence in 20.5 per cent of the accidents in winter season 1969-1970 and 18.2 per cent in winter season 1970-1971. The actions of crusing, maneuvering, towing, parked-stopped, starting, racing-sporting event, overtaking, and slowing-stop were permitted on~road during the 1969- 1970 winter season but were prohibited on~road by the enactment of the Harris Bill in the 1970-1971 winter season. The combination of the preceding listed actions 75 .cucmu ummnmmc may on popcsou msHm> pmusQEoo Hmsuodm 0.00H HNN 0.00H OON Hmuoe NO N.HN ONN N.ON ONH Hmuoa paw oom b. m . . . . c3ocxco ooml . . . . m.H m moum .mcH30Hm ON- N. N N.H N Nameuum>o OOHH O.N HH . . . . pcm>m NcHuuomm .mcHon O O.H O O.N O mcHuumum NN- H.N N O.N OH Ommmoum .omxumm OOH N. N N. H OcHzoO mm m.mH mm m.OH mm mcHum>5mcmz NO O.NN ONH N.NN NOH mchHsno omomIGOInHHHm mHuHmm Na OmanHnouN coHuo« ON N.NH HN N.ON HO mmzsmHm Nchmouo omomncounHHHm mHuumm an omuuHsumm coHuoa mucmu mom Hmnfisz mucmo mom nmnEsz mmcmnu coHumnmmo ucmo umm HNNH-ONNH ONNHumNNH .HHHm mHuumm on» an pmanHnoum no pmuuHEHmm coHuom an mononusooo msu mo mEHB 05» um coHumummo an mucmpHoom mHHnoesocm pMOMIco mo GOHuanuvaall.Om.O mnmde 4C". ., 5" Ha! (I) O‘, 76 accounted for 79.5 per cent of the on~road accidents in the 1969-1970 winter season and 81.8 per cent in the 1970- 1971 winter season. The increase in per cent change for action permitted on~road by the Harris Bill, crossing the highway, was 24. The increase in per cent change for all actions prohibited on~road by the Harris Bill, cruising, maneuvering, towing, parked-stopped, starting, racing~ sporting event, overtaking, and slowing-stop, was 45. Apparent Cause or Contributing Circumstance.~~ Table 4.35 shows that the contributing circumstance or apparent cause that exhibited the most frequency in both winter seasons was "imprudent speed" (31.0 per cent in 1969-1970 winter season and 32.0 per cent in 1970-1971 winter season). In the 1969-1970 winter season "failure to yield" had the second highest frequency, 24.5 per cent while in the 1970-1971 winter season "reckless driving" had the second highest frequency, 25.3 per cent. "Unfamiliarity of terrain" and "poor visibility" had the largest increases in per cent change with 700 and 300, respectively. "Failure to yield" exhibited a decrease in the per cent change of 39. Vehicle Registration Status.-~During both winter seasons, more than half the snowmobiles involved in on~road snow- mobile accidents were registered. Table 4.36 shows that 53.5 per cent were registered in the 1969-1970 winter 77 .nucou amoummc man 0» popcsou wsHm> pmusmfioo Hmsuodo 0.00H Hmm 0.00H oom Hmuoe Hm: o.m vH m.m NH csocxca 0mm: N. m N.N N NHmmoHO ooe mcHsoHHom OON m.m N . . . . chuumB mo NanmHHHEomcD oomu N. m 0.0 m nonuo an cmxounm>o om: O.H v o.m m mocmHuomxm mo xomq OON O.HH NN O.O N NuHHHnHmH> uooo 00H 0.0H mm O.N OH ucoEmstm m>Huoomon mm: o.HH Hm m.vm mv onHN 0» ousHHmm OOH N.NN HN N.OH NN mcH>Huo mNonoom mo O.Nm om o.Hm mo ooomm ucmosumsH omcmno mucmu mom uoassz mucmu Hod Hwnadz mocmumssoHHO mcHuonHuucou so no no omcm Cowman u o N HNNH-ONNH ONOHumomH o o « . mOGMUmSUHflU mcHuanuucoo no mmdou ucmummmd an mucmpHoo< OHHQOE3ocm cmomlco mo coHuanuumHoll.mm.v mamme 78 TABLE 4.36.-~Distribution of Registration Status of Snowmobiles Involved in On-Road Accidents. Registration 1969-1970 1970-1971 Per Cent Status a a Change Number Per Cent Number Per Cent Registered 107 53.5 170 60.5 59 Not Registered 91 45.5 111 39.5 22 Unknown 2 1.0 O 0.0 ~200 Total 200 100.0 281 100.0 a Actual computed value rounded to the nearest tenth. season and that 60.5 per cent were registered in the 1970- 1971 winter season. Conversely, 45.5 per cent were not registered in the 1969-1970 winter season and 39.5 per cent were not registered in the 1970-1971 winter season. The increase in the per cent change for registered snowmobiles was 59 and for unregistered snowmobiles was 22. Vehicle Make.~~Table 4.37 reveals that in both the 1969-1970 and 1970-1971 winter seasons the Ski-Doo was the snowmobile most frequently involved in on~road accidents with 48.0 per cent and 30.6 per cent, respectively. There were twelve additional makes involved in on~road snow— mobile accidents in 1970-1971 than in 1969—1970. Rupp and Artic Cat snowmobile makes showed the largest increase in the per cent change with 600 and 450, respectively. Horsepower.~~The range of horsepower that was most prevalent in both the 1969-1970 winter season and 1970-1971 79 TABLE 4.37.--Distribution of Make of Snowmobile Involved in On-Road Accidents. 1969-1970 1970-1971 Per Cent Name Number Per Centa Number Per Centa Change Ski D00 96 48.0 86 30.6 10 Polaris 12 6.0 19 6.8 58 Snojet 15 7.5 7 2.5 ~53 MotoSki 11 5.5 22 7.8 100 AMP 7 3.5 11 3.9 57 Ski Roule 10 4.9 8 2.9 ~20 Artic Cat 8 4.9 44 15.7 450 Scorpion 9 4.5 10 3.6 11 Fox Trac l .5 1 .4 O Rupp l .5 7 2.5 50 Boaski 6 3.0 6 2.1 0 Alouette 2 1.0 3 1.0 33 Evinrude 4 2.0 4 1.4 0 Yamaha 3 1.5 4 1.4 O Sno Squire .. .. 2 .7 200 Starcraft 2 1.0 1 .4 ~100 Massey Ferguson .. .. 2 .4 400 Ariens Arrow .. .. .. .. O Northway 1 .5 1 .4 O Wildcat .. .. l .4 100 Chaparral 1 .5 2 .7 100 Viking .. .. l .4 100 Johnson 1 .5 2 .7 100 Bolerns D/A .. .. 2 .7 200 Mercury .. .. 2 .7 200 Sno Prince .. .. 4 1.4 400 Sno Bug 3 1.5 .. .. ~3OO Wheel Horse .. .. 2 .7 200 Yukon King 1 .5 2 .7 100 Sno Ghia .. .. .. .. .. Eskimo .. .. 2 .7 100 Homelite .. .. l .4 100 Tradewinds .. .. 2 .7 200 Auto Ski .. .. 1 .4 100 Husky .. .. 1 .4 100 Auberg 2 1.0 .. .. ~200 Unknown 3 1.5 15 5.3 433 Total 200 100.3 281 99.2 aActual computed value rounded to the nearest tenth. 80 winter season in on~road snowmobile accidents was 17~21 as is shown in Table 4.38. Thirty-four and five tenths per cent of the 1969-1970 winter season snowmobiles were in the 17-21 range and 24.2 per cent of the 1970-1971 winter season snowmobiles were in the l7-21 range. This consti- tuted a decrease in the per cent change of one for the 17-21 horse power range. The largest increase in the per cent change existed in the 32—36 horsepower range with 650. TABLE 4.38.-~Distribution of Horsepower of Snowmobiles Involved in On-Road Accidents. 1969-1970 1970-1971 Per Cent Horsepower a a Change Number Per Cent Number Per Cent 0~16 33 16.5 45 16.0 36 17-21 69 34.5 68 24.2 ~1 22-26 22 11.0 67 23.8 205 27-31 18 9.0 39 13.9 117 32-36 4 2.0 30 10.7 650 37-41 1 .5 7 2.5 600 42-46 7 3.5 2 .7 ~250 47-51 6 3.0 3 1.1 ~100 52-56 .. .. .. .. .. 57~Over .. .. 3 1.1 300 Unknown 40 20.0 17 6.0 ~l35 Total 200 100.0 281 100.0 aActual computed value rounded to the nearest tenth. 81 Environment Counpy_of Accident Occurrence.~~Oneida, Oswego, Onondaga, and St. Lawrence counties had the highest frequency of on~road snowmobile accident occurrence (13.0%, 9.5%, 9.0%, and 9.0%, respectively) in the winter season 1969-1970, as is shown in Table 4.39. In the winter season 1970-1971 Lewis, Oneida, Onandage, and St. Lawrence counties had the highest frequency of on~road snowmobile accidents with 9.2 per cent, 6.8 per cent, 6.4 per cent, and 6.4 per cent, respectively, as shown in Table 4.22. Oswego one of the counties with highest frequency in 1969- 1970 evidence a decrease in the per cent change of 58. The counties with the largest increases in the per cent change were Warren at 900 and Chenango at 600. Location.~~Because this is the on~road sub-group, the location of all the accidents of both winter seasons was on the roadway. The on~road sub—group for the 1969- 1970 winter season consisted of 200 accidents and for the 1970-1971 winter season consisted of 281 accidents. This is indicative of an increase in the per cent change of 40 as is shown in Table 4.17. Surface Conditions.-~Table 4.40 indicates that 91.5 per cent of the on~road snowmobile accidents in the 1969-1970 winter season occurred on a smooth surface condition and that 54.8 per cent of the 1970-1971 winter .n V «(V fl.v FE vel- .0 82 TABLE 4.39.~~Distribution of On-Road Snowmobile Accidents by County of Occurrence. 1969-1970 1970-1971 Per Cent County a a Change Number Per Cent Number Per Cent Albany 1 .5 1 .4 0 Allegany l .5 .. .. ~100 Broome .. .. 1 .4 100 Cattaraugus 2 1.0 2 .7 0 Cayuga 5 2.5 9 3.2 80 Chautauqua 3 1.5 4 1.4 33 Chemung l .5 .. .. ~100 Chenango l .5 7 2.5 600 Clinton 4 2.0 12 4.3 200 Columbia .. .. 5 1.8 500 Cortland 1 .5 3 1.1 200 Deleware 1 .5 2 .7 100 Dutchess 2 1.0 4 1.4 100 Erie 10 5.0 7 2.5 ~43 Essex 1 .5 6 2.1 500 Franklin 7 3.5 15 5.3 114 Fulton l .5 2 .7 100 Genesee .. .. 3 1.1 300 Greene 2 1.0 4 1.4 100 Hamilton .. .. 2 .7 200 Herkimer 3.5 17 6.0 143 Jefferson 12 6.0 14 5.0 17 Lewis 7 3.5 26 9.2 271 Livingston .. .. 3 1.1 300 Madison 11 5.5 6 2.1 ~83 Monroe 1 .5 6 2.1 500 Montgomery 3 1.5 l .4 ~200 Nassau .. .. .. .. .. New York City .. .. .. .. .. Niagara .. .. 3 1.1 300 Oneida 26 13.0 19 6.8 ~37 Onondaga 18 9.0 18 6.4 0 Ontario 1 .5 3 1.1 200 Orange 1 .5 1 .4 0 Orleans 1 .5 1 .4 0 Oswego 19 9.5 12 4.3 ~58 Otsego 3 1.5 3 1.1 O Putnam .. .. .. .. .. Rensselaer 2 1.0 2 .7 0 Rockland .. .. .. .. .. St. Lawrence 8 9.0 8 6.4 O Saratoga 3 1.5 4 1.4 33 Schenectady .. .. 1 .4 100 83 TABLE 4.39.--Continued. 1969-1970 1970-1971 Per Cent County Change Number Per Centa Number Per Centa Schoharie .. .. .. .. .. Schuyler 3 1.5 l .4 ~200 Seneca 2 1.0 .. .. ~200 Steuben 3 1.5 2 .7 ~100 Suffolk .. .. .. .. .. Sullivan 2 1.0 3 1.1 50 Tioga 1 .5 2 .7 100 Tompkins 1 .5 1 .4 O Ulster 1 .5 l .4 0 Warren .. .. 9 3.2 900 Washington 2 1.0 4 1.4 100 Wayne 4 2.0 4 1.4 O Westchester .. .. .. .. .. Wyoming 4 2.0 4 1.4 0 Yates .. .. 3 1.1 300 Unknown 1 .5 .. .. ~100 Total 200 100.0 281 100.3 aActual computed value rounded to the nearest tenth. 84 TABLE 4.40.~~Distribution of Surface Condition of On-Road Snowmobile Accident Location. Surface 1969-1970 1970-1971 Per Cent Condition Number Per Centa Number Per Centa Change Smooth 183 91.5 154 54.8 ~158 Rough 16 8.0 97 37.5 512 Other 15 5.3 1500 Unknown 1 .5 15 5.3 1400 Total 200 100.0 281 100.0 aActual computed value rounded to the nearest tenth. season snowmobile accidents occurred on a smooth surface condition. The decrease in number from 183 in 1969-1970 to 154 in 1970-1971 represents a decrease in per cent change of 19. The increase in the per cent change for rough surface condition was 512. Week of Season.~~Table 4.41 indicates that the week of the season in which most snowmobile accidents occurred in the 1969-1970 winter season was December 28, 1969 to January 3, 1970 with 25.5 per cent of the accidents. The week with the second highest frequency was January 18, 1970 to January 24, 1970 with 11.5 per cent. The week of the season with the highest frequency in the 1970-1971 winter season was February 28, 1971 to March 6, 1971 with 11.7 per cent. The weeks of December 20, 1970 to December 26, 1970 and December 27, 1970 to January 2, 1971, each with 85 .nucmu umouomc on» 0» pmocaou osHo> pmusmeoo Hmsuo4o N.NN HNN O.OOH OON HNooN v. H NHIO HHIv NN H.H N OH-O O -O HN .. .. N -O NNuN .. .. NN-N NN-N ON N.N O NN-N HNnN O.N O HN-N NH-N NH N.O NH ON-N OHuN N.H N OH-N N -N NH N.N NH NHIN N -N O.N O N -N H -N NH N.HH NN N -N NN-N N.H N NN-N NN-N NH N.O NH NN-N HN-N N.N NH HN-N NH-N NH H.N ON ON-N OH-N N.N N OH-N N -N OH N.N OH NHuN N -N O.N O N -N H -N NH N.O NH O -N HN-H N.N NH HN-H NN-H NH N.N NH ON-H ON-H N.HH NN ON-H NH-H HH O.OH NN NNnH NH-H O.N OH NH-H HHuH OH N.N NH NH-H OH-H N.N NH OH-H O -H N N.N OH O -H N -H N.NN HN N -H NNuNH N N.OH NN N -H NNuNH N.N NH NNnNH HNuNH N N.OH NN NNuNH ONuNH N.N NH ON-NH OHnNH N O.N OH NHuNH NH-NH O.N N NH-NH N -NH N O.H O NHuNH N -NH O.N N O -NH ONuHH O N. N N -NH NNuHH N. H NNuHH NNnHH N O. H NNnHH NNnHH .. .. NNuHH NHIHH N .. .. HNuHH NHuHH N. H NHuHH NHuHH H MUcmu H0“ HQQEHHZ mmuma MUCmU Hmm ngz mwflma Hmnflaz HNNH-ONNH ONNHuNNNH Hooz .c0mowm mo x003 an mucmoHoo< mHHQOE3ocm UMOMIGO mo coHuanHumHoII.Hv.O mHmma 86 10.3 per cent, had the second highest frequency in the 1970-1971 season. Day of Week.~~The combination of Saturday and Sunday in both winter seasons accounted for most of the on~road snowmobile accidents (50.0 per cent in 1969-1970 and 47.5 per cent in 1970-1971) as shown in Table 4.42. Thursday accounted for the largest increase in per cent change with 92 while Wednesday accounted for the least increase in per cent change with 6. TABLE 4.42.-~Distribution of Day of Week of On-Road Snow~ mobile Accidents. 1969-1970 1970-1971 Per Cent Day Number Per Centa Number Per Centa Change Saturday 44 22.0 65 23.1 48 Sunday 56 28.0 69 24.6 23 Monday 15 7.5 20 7.1 33 Tuesday 15 7.5 19 6.8 26 Wednesday 18 9.0 19 6.8 6 Thursday 26 13.0 50 17.8 92 Friday 26 13.0 38 13.5 46 Unknown 0 0.0 1 .4 100 Total 200 100.0 281 100.1 aActual computed value rounded to the nearest tenth. Hour of Day.~~The hours in the day when most on- road snowmobile accidents occurred, as shown by Table 4.43, in both the 1969-1970 and 1970-1971 winter seasons was 2:01 P.M. to 5:00 P.M. with 28.0 per cent and 29.2 per cent, 87 .nucmu ummnmmc on» on omocsou wsHm> omusmeoo Hmsuo