State of Washington 2002
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Transportation Data Center Data Set Codebook NUMBER 2007-3 MARCH 2007 State of Washington 2002 The University of Michigan Transportation Research Institute STATE OF WASHINGTON 2002 MOTOR VEHICLE TRAFFIC ACCIDENTS INTRODUCTION This code book documents data sets describing motor vehicle accidents that occurred in the State of Washington during calendar year 2002. The data sets were developed by the Transportation Data Center at the University of Michigan’s Transportation Research Institute (UMTRI) from data supplied by the Washington State Patrol. The cooperation of that agency is gratefully acknowledged. The original data have been formatted into five distinct record types (i.e., Accident, Vehicle, Two-Vehicle, Occupant, and NonMotorist). A relational data set containing the original data is maintained by the Data Center, however, and other final data set configurations can be generated. The characteristics of the system data sets are as follows: 2002 WASHINGTON DATA SETS CATEGORY KEY VARIABLES CASES Accident WACØ2ACC 1-41 129,118 Occupant WACØ2OCC 1-41, 101-174, 201-209 330,420 Pedestrian WACØ2PED 1-41, 101-174, 301-319 3,136 Two-Vehicle WACØ2TVA 1-41, 101-174, 1101-1174 87,727 Vehicle WACØ2VEH 1-41, 101-174 242,548 The letter “C” in the data set descriptor represents “CENSUS” since these data sets describe all motor vehicle accidents that occurred in the state during calendar year 2002 that were recorded by the State Patrol. The code book itself is divided into four sections that document the accident, vehicle, occupant, and pedestrian records, Washington 2002 Introduction respectively. Univariate frequencies and frequency percentages displayed in each section were derived from the corresponding data set (i.e., accident frequencies from WACØ2ACC, occupant frequencies from WACØ2OCC, etc.). An index located at the end of the code book gives the variable number and code value where each word used in a variable name or code value definition may be located. Common words and connectives (e.g., the, and, but, while, etc.) are not included in the index. Variables 154-174 in the vehicle section represent the decoded values of the Vehicle Identification Number from the VINDICATOR program of the Highway Data Loss Institute. The two-vehicle-accident data set contains one record for every accident that involved two vehicles. This record contains accident information as well as vehicle and driver information for each of the two involved vehicles. In order to avoid a large amount of duplication, the two-vehicle data set is not documented directly in this code book. Univariate frequencies are consequently not available. Variable numbers for this data set are defined as follows: V1 - V41 - Accident V101 - V174 - Vehicle/Driver #1 V1101 - V1174 – Vehicle/Driver #2 The code book may be used directly for the definition of variables V1 through V174. Variables V1101 through V1174 have the same definitions as V101 through V174. While every effort has been made to provide accurate, reliable data, inconsistencies may arise from the source data or from the reformatting procedures used. Consequently, the Data Center cannot guarantee the accuracy of the data, but will try to correct any discrepancies that are found. Please notify the Center of any errors that you may uncover (or of any suggestions or comments that you may have concerning the data or code book) ii March 2007 Introduction Washington 2002 by calling the Transportation Data Center (734)-763-3230 or by emailing [email protected]. For more information about our full line of services, please visit our website: http://www.umtri.umich.edu/tdc/. The most current TDC codebooks are available there in PDF format and codebooks can now be ordered online. March 2007 iii 2002 - Accident Variable Variable Storage Page Number Name Width Type Number --------------- ----------------------------------------------- ------------- ----------------- ------------- 1 ACCIDENT REPORT NUMBER 7 Alphabetic 1 2 YEAR OF ACCIDENT 4 Numeric 1 3 MONTH OF ACCIDENT 2 Numeric 1 4 DAY OF ACCIDENT 2 Numeric 1 5 TIME OF DAY 4 Numeric 2 6 DAY OF WEEK 1 Numeric 2 7 COUNTY 2 Numeric 2 8 CITY 4 Numeric 3 9 URBAN OR RURAL 1 Numeric 8 10 FUNCTION CLASS - STATE 2 Numeric 9 11 FUNCTION CLASS - FEDERAL 2 Numeric 9 12 JUNCTION RELATIONSHIP 2 Numeric 10 13 CHARACTER OF LOCATION 2 Numeric 10 14 CHARACTER OF ROAD 1 Numeric 10 15 ROAD SURFACE CONDITION 1 Numeric 11 16 WEATHER CONDITIONS 2 Numeric 11 17 LIGHT CONDITIONS 1 Numeric 11 18 FIRE RESULTED INDICATOR 1 Numeric 12 19 STOLEN VEHICLE FLAG 1 Numeric 12 20 HIT AND RUN INDICATOR 1 Numeric 12 21 WORK ZONE STATUS 1 Numeric 12 22 INTENTIONAL ACTION FLAG 1 Numeric 12 23 MEDICALLY CAUSED FLAG 1 Numeric 13 24 NONTRAFFIC FLAG 1 Numeric 13 25 LEGAL INTERVENTION FLAG 1 Numeric 13 26 COLLISION TYPE #1 2 Numeric 13 27 COLLISION TYPE #2 2 Numeric 15 28 OBJECT STRUCK #1 2 Numeric 17 29 OBJECT STRUCK #2 2 Numeric 18 30 VEHICLE MIX 2 Numeric 20 31 VEHICLE 1 MOVEMENT 2 Numeric 21 32 VEHICLE 2 MOVEMENT 2 Numeric 21 33 DIAGRAM COLLISION TYPE 2 Numeric 22 34 ACCIDENT INVESTIGATED BY 1 Numeric 23 35 ACCIDENT SEVERITY 1 Numeric 23 36 TOT TRAFFIC UNITS IN ACC 2 Numeric 23 37 TOT MOTOR VEHICLES - ACC 3 Numeric 24 38 TOT PEDESTRIANS IN ACC 2 Numeric 24 39 TOT PEDALCYCLISTS - ACC 2 Numeric 25 40 TOT KILLED IN ACC 2 Numeric 25 41 TOT INJURED IN ACC 2 Numeric 25 STATE OF WASHINGTON 2002 - Vehicle Variable Variable Storage Page Number Name Width Type Number --------------- ----------------------------------------------- ------------- ----------------- ------------- 101 UNIT NUMBER 2 Numeric 27 102 VEHICLE TYPE 2 Numeric 27 103 VEHICLE USAGE 2 Numeric 28 104 HAZARDOUS MATERIALS 1 Numeric 28 105 VEHICLE IDENTIFICATION # 10 Alphabetic 28 106 VEHICLE REGISTRATION ST. 4 Numeric 29 107 TRAFFIC CONTROL 2 Numeric 30 108 POSTED SPEED 2 Numeric 31 109 ROAD SURFACE TYPE 2 Numeric 31 110 DRIVER/VEHICLE ACTIONS 1 2 Numeric 32 111 DRIVER/VEHICLE ACTIONS 2 2 Numeric 32 112 DRIVER/VEHICLE ACTIONS 3 2 Numeric 33 113 VEH CONDITION/DEFECTS #1 2 Numeric 33 114 VEH CONDITION/DEFECTS #2 2 Numeric 34 115 VEH CONDITION/DEFECTS #3 2 Numeric 34 116 SEQUENCE OF EVENTS #1 2 Numeric 35 117 SEQUENCE OF EVENTS #2 2 Numeric 35 118 SEQUENCE OF EVENTS #3 2 Numeric 36 119 SEQUENCE OF EVENTS #4 2 Numeric 36 120 DIRECTION OF MOVEMENT-FR 2 Numeric 37 121 DIRECTION OF MOVEMENT-TO 2 Numeric 37 122 WORST INJURY IN VEHICLE 1 Numeric 38 123 NUMBER KILLED IN VEHICLE 2 Numeric 38 124 NUMBER INJURED IN VEHICL 2 Numeric 38 125 DRIVER SOBRIETY 1 Numeric 39 126 DRIVER ALCOHOL TEST RESU 2 Numeric 39 127 DRIVER DRUG ASSESSMENT 1 2 Numeric 39 128 DRIVER DRUG ASSESSMENT 2 2 Numeric 40 129 DRIVER LICENSE STATE 4 Numeric 40 130 DRIVER AIRBAG STATUS 1 Numeric 41 131 DRIVER RESTRAINT USE 2 Numeric 42 132 DRIVER EJECTION 1 Numeric 42 133 DRIVER HELMET USE 1 Numeric 42 134 DRIVER INJURY CLASS 2 Numeric 43 135 DRIVER AGE 3 Numeric 43 136 DRIVER SEX 1 Numeric 43 137 ON-DUTY OFFICER FLAG 1 Numeric 43 138 MISCELLANEOUS ACTIONS #1 3 Numeric 44 139 MISCELLANEOUS ACTIONS #2 3 Numeric 47 140 MISCELLANEOUS ACTIONS #3 3 Numeric 49 141 LIABILITY INSURANCE 1 Numeric 52 142 DRIVER CITED 1 Numeric 52 143 CONTRIBUTING CIRC #1 2 Numeric 52 144 CONTRIBUTING CIRC #2 2 Numeric 53 145 CONTRIBUTING CIRC #3 2 Numeric 54 146 INTERSTATE FLAG 1 Numeric 54 147 UNIT CONFIGURATION 1 Numeric 55 148 CARGO BODY 2 Numeric 55 149 CARRIER STATE 4 Numeric 55 150 NUMBER OF AXLES 2 Numeric 57 STATE OF WASHINGTON 2002 - Vehicle Variable Variable Storage Page Number Name Width Type Number --------------- ----------------------------------------------- ------------- ----------------- ------------- 151 GVWR 6 Numeric 57 152 HAZMAT PLACARD NUMBER 4 Numeric 57 153 HAZMAT PLACARD SUFFIX 2 Numeric 58 STATE OF WASHINGTON 2002 - Vehicle/VIN Variable Variable Storage Page Number Name Width Type Number --------------- ----------------------------------------------- ------------- ----------------- ------------- 154 VINDICATOR - IERR 2 Numeric 59 155 VINDICATOR - ALTSW 1 Numeric 59 156 VINDICATOR - YEAR 4 Numeric 60 157 VINDICATOR - MAKE 2 Numeric 60 158 VINDICATOR - MAKE/MODEL 7 Numeric 62 159 VINDICATOR - BODY 2 Numeric 131 160 VINDICATOR - VEHTP 1 Numeric 132 161 VINDICATOR - SIZE 1 Numeric 132 162 VINDICATOR - STYLE CLASS 2 Numeric 133 163 VINDICATOR - WEIGHT 4 Numeric 133 164 VINDICATOR - WHLBS 4 Numeric 133 165 VINDICATOR - LENGTH 4 Numeric 134 166 VINDICATOR - WIDTH 4 Numeric 134 167 VINDICATOR - HEIGHT 4 Numeric 134 168 VINDICATOR - RSTN 1 Numeric 134 169 VINDICATOR - ATD / DRL 25 Alphabetic 135 170 VINDICATOR - MINHP 3 Numeric 135 171 VINDICATOR - MAXHP 3 Numeric 135 172 VINDICATOR - ABS 3 Numeric 135 173 VINDICATOR - TRANS 2 Numeric 138 174 VINDICATOR - ENGINE 3 Numeric 138 STATE OF WASHINGTON 2002 - Occupant Variable Variable Storage Page Number Name Width Type Number --------------- ----------------------------------------------- ------------- ----------------- ------------- 201 VEHICLE NUMBER 2 Numeric 139 202 OCCUPANT SEAT POSITION 2 Numeric 139 203 OCCUPANT SEX 1 Numeric 140 204 OCCUPANT AGE 3 Numeric 140 205 OCCUPANT INJURY CLASS 2 Numeric 140 206 OCCUPANT RESTRAINT USAGE 2 Numeric 140 207 OCCUPANT EJECTION 1 Numeric 141 208 AIRBAG STATUS 1 Numeric 141 209 HELMET USE 1 Numeric 141 STATE OF WASHINGTON 2002 - NonMotorist Variable Variable Storage Page Number Name Width Type Number --------------- ----------------------------------------------- ------------- ----------------- ------------- 301 NMT TRAFFIC UNIT NUMBER 2 Numeric 143 302 NONMOTORIST TYPE 2 Numeric 143 303 NONMOTORIST AGE 3 Numeric 144 304 NONMOTORIST SEX 1 Numeric 144 305 NMT WAS USING 1 Numeric 144 306 NMT CLOTHING VISIBILITY 1 Numeric 145 307 NMT HELMET USE 1 Numeric 145 308 NONMOTORIST INJURY CLASS 2 Numeric 145 309 NONMOTORIST ACTIONS 2 Numeric 146 310 NMT CONTRIBUTING CIRC #1 2 Numeric 146 311 NMT CONTRIBUTING CIRC #2 2 Numeric 147 312 NMT CONTRIBUTING CIRC #3 2 Numeric 148 313 NMT DIRECTION - FROM 2 Numeric 148 314 NMT DIRECTION - TO 2 Numeric 149 315 NMT SOBRIETY 1 Numeric 149 316 NMT ALCOHOL TEST RESULT 2 Numeric 149 317 NMT DRUG ASSESSMENT #1 2 Numeric 150 318 NMT DRUG ASSESSMENT #2 2 Numeric 150 319 NMT CITED 1 Numeric 150 2002 - Accident Page 1 The ACCIDENT Variables Variables 1 through 41 describe the accident.