Transportation Data Center Data Set Codebook NUMBER 2010-3 MARCH 2010 State of Washington 2007 The University of Michigan Transportation Research Institute THIS PAGE LEFT INTENTIONALLY BLANK STATE OF WASHINGTON 2007 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 2007. 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: 2007 WASHINGTON DATA SETS CATEGORY KEY VARIABLES CASES Accident WACØ7ACC 1-41 133,745 Occupant WACØ7OCC 1-41, 101-172, 201-209 332,892 Pedestrian WACØ7PED 1-41, 101-172, 301-319 3,278 Two-Vehicle WACØ7TVA 1-41, 101-172, 1101-1172 89,663 Vehicle WACØ7VEH 1-41, 101-172 248,547 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 2007 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 2007 Introduction respectively. Univariate frequencies and frequency percentages displayed in each section were derived from the corresponding data set (i.e., accident frequencies from WACØ7ACC, occupant frequencies from WACØ7OCC, 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 152-172 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 - V172 - Vehicle/Driver #1 V1101 - V1172 – Vehicle/Driver #2 The code book may be used directly for the definition of variables V1 through V172. Variables V1101 through V1172 have the same definitions as V101 through V172. 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 2010 Introduction Washington 2007 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 2010 iii THIS PAGE LEFT INTENTIONALLY BLANK STATE OF WASHINGTON 2007 - 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 9 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 11 15 ROAD SURFACE CONDITION 1 Numeric 11 16 WEATHER CONDITIONS 2 Numeric 11 17 LIGHT CONDITIONS 1 Numeric 12 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 13 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 14 27 COLLISION TYPE #2 2 Numeric 16 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 24 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 2007 - 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 28 107 TRAFFIC CONTROL 2 Numeric 30 108 POSTED SPEED 2 Numeric 31 109 ROAD SURFACE TYPE 2 Numeric 32 110 DRIVER/VEHICLE ACTIONS 2 Numeric 32 111 VEH CONDITION/DEFECTS #1 2 Numeric 32 112 VEH CONDITION/DEFECTS #2 2 Numeric 33 113 VEH CONDITION/DEFECTS #3 2 Numeric 33 114 SEQUENCE OF EVENTS #1 2 Numeric 34 115 SEQUENCE OF EVENTS #2 2 Numeric 34 116 SEQUENCE OF EVENTS #3 2 Numeric 35 117 SEQUENCE OF EVENTS #4 2 Numeric 35 118 DIRECTION OF MOVEMENT-FR 2 Numeric 36 119 DIRECTION OF MOVEMENT-TO 2 Numeric 36 120 WORST INJURY IN VEHICLE 1 Numeric 36 121 NUMBER KILLED IN VEHICLE 2 Numeric 37 122 NUMBER INJURED IN VEHICL 2 Numeric 37 123 DRIVER SOBRIETY 1 Numeric 37 124 DRIVER ALCOHOL TEST RESU 2 Numeric 38 125 DRIVER DRUG ASSESSMENT 1 2 Numeric 38 126 DRIVER DRUG ASSESSMENT 2 2 Numeric 38 127 DRIVER LICENSE STATE 4 Numeric 39 128 DRIVER AIRBAG STATUS 1 Numeric 40 129 DRIVER RESTRAINT USE 2 Numeric 41 130 DRIVER EJECTION 1 Numeric 41 131 DRIVER HELMET USE 1 Numeric 41 132 DRIVER INJURY CLASS 2 Numeric 41 133 DRIVER AGE 3 Numeric 42 134 DRIVER SEX 1 Numeric 42 135 ON-DUTY OFFICER FLAG 1 Numeric 42 136 MISCELLANEOUS ACTIONS #1 3 Numeric 42 137 MISCELLANEOUS ACTIONS #2 3 Numeric 46 138 MISCELLANEOUS ACTIONS #3 3 Numeric 48 139 LIABILITY INSURANCE 1 Numeric 49 140 DRIVER CITED 1 Numeric 49 141 CONTRIBUTING CIRC #1 2 Numeric 50 142 CONTRIBUTING CIRC #2 2 Numeric 51 143 CONTRIBUTING CIRC #3 2 Numeric 52 144 INTERSTATE FLAG 1 Numeric 52 145 UNIT CONFIGURATION 1 Numeric 53 146 CARGO BODY 2 Numeric 53 147 CARRIER STATE 4 Numeric 54 148 NUMBER OF AXLES 2 Numeric 55 149 GVWR 6 Numeric 55 150 HAZMAT PLACARD NUMBER 4 Numeric 55 STATE OF WASHINGTON 2007 - Vehicle Variable Variable Storage Page Number Name Width Type Number --------------- ----------------------------------------------- ------------- ----------------- ------------- 151 HAZMAT PLACARD SUFFIX 2 Numeric 56 STATE OF WASHINGTON 2007 - Vehicle/VIN Variable Variable Storage Page Number Name Width Type Number --------------- ----------------------------------------------- ------------- ----------------- ------------- 152 VINDICATOR - IERR 2 Numeric 57 153 VINDICATOR - ALTSW 1 Numeric 57 154 VINDICATOR - YEAR 4 Numeric 57 155 VINDICATOR - MAKE 2 Numeric 58 156 VINDICATOR - MAKE/MODEL 8 Numeric 60 157 VINDICATOR - BODY 2 Numeric 136 158 VINDICATOR - VEHTP 1 Numeric 136 159 VINDICATOR - SIZE 1 Numeric 137 160 VINDICATOR - STYLE CLASS 2 Numeric 137 161 VINDICATOR - WEIGHT 4 Numeric 137 162 VINDICATOR - WHLBS 4 Numeric 138 163 VINDICATOR - LENGTH 4 Numeric 138 164 VINDICATOR - WIDTH 4 Numeric 138 165 VINDICATOR - HEIGHT 4 Numeric 138 166 VINDICATOR - RSTN 1 Numeric 139 167 VINDICATOR - ATD / DRL 25 Alphabetic 139 168 VINDICATOR - MINHP 3 Numeric 139 169 VINDICATOR - MAXHP 3 Numeric 139 170 VINDICATOR - ABS 3 Numeric 140 171 VINDICATOR - TRANS 2 Numeric 142 172 VINDICATOR - ENGINE 3 Numeric 142 STATE OF WASHINGTON 2007 - Occupant Variable Variable Storage Page Number Name Width Type Number --------------- ----------------------------------------------- ------------- ----------------- ------------- 201 VEHICLE NUMBER 2 Numeric 145 202 OCCUPANT SEAT POSITION 2 Numeric 145 203 OCCUPANT SEX 1 Numeric 146 204 OCCUPANT AGE 3 Numeric 146 205 OCCUPANT INJURY CLASS 2 Numeric 146 206 OCCUPANT RESTRAINT USAGE 2 Numeric 146 207 OCCUPANT EJECTION 1 Numeric 147 208 AIRBAG STATUS 1 Numeric 147 209 HELMET USE 1 Numeric 147 STATE OF WASHINGTON 2007 - Pedestrian Variable Variable Storage Page Number Name Width Type Number --------------- ----------------------------------------------- ------------- ----------------- ------------- 301 PED TRAFFIC UNIT NUMBER 2 Numeric 149 302 PEDESTRIAN TYPE 2 Numeric 149 303 PEDESTRIAN AGE 3 Numeric 150 304