Transportation Data Center Data Set Codebook NUMBER JANUARY 2001 TEXAS. The University of Michigan Transportation Research Institute

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1 Transportation Data Center Data Set Codebook NUMBER JANUARY 2001 TEXAS 1999 The University of Michigan Transportation Research Institute

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3 STATE OF TEXAS 1999 MOTOR VEHICLE ACCIDENT CODEBOOK INTRODUCTION This codebook documents data sets describing motor vehicle accidents that occurred in the State of Texas during calendar year The data sets were developed by the Transportation Data Center at the University of Michigan s Transportation Research Institute from data supplied by the Texas Department of Public Safety. The cooperation of that agency is gratefully acknowledged. Three separate data set categories have been built from the original data supplied by the state of Texas. 1) All accidents in which at least one truck was involved. Large trucks were defined by code values for variable 106 and code values 20-27, 31-34, 36, 39, and 99 for variable 104 as described in the codebook. 2) All accidents in which at least one pedestrian or pedalcyclist was involved. 3) A census file of all accidents in the calendar year. The table below provides summary information for each of the categories (such as the key that provides access in ADAAS). The data sets making up the Census, and Large Truck categories have three distinct formats: an Accident data set, a Vehicle data set, and an Occupant data set. 1) The Accident data set (described by variables 1-45) includes one record for each accident. General accident information not specific to any vehicle or its occupants is found in this data set (e.g., time of day, accident type, etc.).

4 Texas 1999 Introduction 1999 TEXAS DATA SETS CATEGORY KEY VARIABLES CASES Census TXC99ACC ,701 TXC99VEH 1-45, ,738 TXC99OCC 1-45, , ,134 Ped/Cyclist TXC99PED 1-45, , , ,762 Large Truck TXT99ACC ,607 TXT99VEH 1-45, ,683 TXT99OCC 1-45, , ,277 2) The Vehicle data set (described by variables 1-45, and ) includes one record for every vehicle involved in the accident. Variables describe specific characteristics of the vehicle, while 1-45 repeat the accident description. 3) The Occupant data set (described by variables 1-45, , and ) includes one record for every occupant involved in the accident. Variables describe specific characteristics of the vehicle occupants, while 1-45 and repeat the accident and vehicle descriptions. The separate Pedestrian/cyclist data set is described by variables 1-45, , , and It includes one record for every pedestrian or pedalcyclist involved in the accident. Variables describe specific characteristics of the pedestrian/pedalcyclist, while 1-45 describe the accident, describe the associated vehicle, and describe the associated vehicle s driver. UMTRI has received the commercial-vehicle data along with the standard crash data file. At this time this data has not been incorporated into the 1999 system datasets. There are 17,451 commercial-vehicle records for Users wishing access to this information should contact the TDC. ii January 2001

5 Introduction Texas 1999 This codebook documents the variable names and code values for all data sets and gives the univariate frequencies for the Census and Truck data sets. In using the univariate frequencies, the following convention should be noted: frequencies for variables 1-45 were derived from the two Accident data sets, frequencies for variables were derived from the two Vehicle data sets, and frequencies for variables were derived from the two Occupant data sets. Frequencies for variables were derived from the Pedestrian/cyclist data set. Starting with the 1985 Texas data, all occupants involved in the accident who are in a passenger car or truck have an occupant record. Prior to 1985 only occupants in an injury accident or in a vehicle with a damage rating over 5 were coded. It has also come to our attention that the variable Total Passengers in Vehicle (V117) counted only the occupants with a subsequent record. Thus property damage accidents will be associated with an underreporting of occupants. 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, UMTRI cannot guarantee the accuracy of the data but will try to correct any discrepancies that are found. Any comments or suggestions concerning the data or the codebook may be made by calling the Transportation Data Center at (734) or by ing TDC- UMTRI@umich.edu. For more information about our full line of services, please visit our website: The most current TDC codebooks are available there in PDF format and codebooks can now be ordered online. January 2001 iii

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7 TEXAS Accident Variable Variable Storage Page Number Name Width Type Number DPS ACCIDENT NUMBER 7 Numeric 1 2 YEAR 2 Numeric 1 3 MONTH 2 Numeric 1 4 DAY OF MONTH 2 Numeric 1 5 DAY OF WEEK 1 Numeric 2 6 HOUR OF DAY 2 Numeric 2 7 JULIAN DAY FROM Numeric 3 8 COUNTY 3 Numeric 3 9 CITY 2 Numeric 8 10 POPULATION CLASS 1 Numeric 8 11 ROAD CLASS 1 Numeric 9 12 ROAD CURVATURE 2 Numeric 9 13 ROAD ALIGNMENT 1 Numeric 9 14 ROAD SURFACE CONDITION 1 Numeric ROAD PAVEMENT CONDITION 2 Numeric TRAFFIC CONTROL DEVICE 2 Numeric ON/OFF ROADWAY 1 Numeric ROADWAY PART INVOLVED 1 Numeric INTERSECTION RELATED 1 Numeric INTERSECTING ROAD TYPE 2 Numeric NO OF ENTERING ROADS 1 Numeric OTHER ROADWAY FEATURE #1 2 Numeric OTHER ROADWAY FEATURE #2 2 Numeric WEATHER CONDITION 1 Numeric LIGHT CONDITION 1 Numeric FIRST HARMFUL EVENT 2 Numeric TRAFFIC UNIT MIX 2 Numeric VEHICLE MOVEMENTS 2 Numeric OBJECT STRUCK 2 Numeric CONTRIBUTING FACTOR 2 Numeric BRIDGE ACCIDENT DETAIL 1 Numeric INVESTIGATING AGENCY 1 Numeric DISTRICT 3 Numeric RR CROSSING NUMBER 7 Alphabetic BRIDGE NUMBER 3 Numeric TOTAL VEHICLES IN ACC 2 Numeric WORST INJURY IN ACC 1 Numeric TOTAL KILLED IN ACC 2 Numeric TOTAL INJURED IN ACC 2 Numeric TOTAL A INJURED IN ACC 2 Numeric TOTAL B INJURED IN ACC 2 Numeric TOTAL C INJURED IN ACC 2 Numeric TOTAL CASUALTIES IN ACC 2 Numeric TOTAL UNINJURED IN ACC 2 Numeric TOTAL PEDESTRIANS IN ACC 2 Numeric 24

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9 TEXAS Vehicle Variable Variable Storage Page Number Name Width Type Number VEHICLE NUMBER 2 Numeric VEHICLE MAKE/MODEL 3 Numeric VEHICLE MODEL YEAR 4 Numeric VEHICLE BODY STYLE 2 Numeric GENERAL VEHICLE TYPE 1 Numeric SPECIFIC VEHICLE TYPE 2 Numeric VEHICLE DAMAGE LOCATION 2 Numeric VEHICLE DAMAGE SCALE 1 Numeric VEHICLE DEFECT 2 Numeric DRIVER RESIDENCE 1 Numeric DRIVER LICENSE STATUS 1 Numeric DRIVER STATUS 1 Numeric DRIVER CONTRIB FACTOR #1 2 Numeric DRIVER CONTRIB FACTOR #2 2 Numeric DRIVER IMPAIRMENT 1 Numeric DRIVER LIABILITY INSURAN 1 Numeric TOTAL PASSENGERS IN VEH 2 Numeric WORST INJURY IN VEH 1 Numeric TOTAL KILLED IN VEH 2 Numeric TOTAL INJURED IN VEH 2 Numeric TOTAL A INJURED IN VEH 2 Numeric TOTAL B INJURED IN VEH 2 Numeric TOTAL C INJURED IN VEH 2 Numeric TOTAL CASUALTIES IN VEH 2 Numeric TOTAL UNINJURED IN VEH 2 Numeric 64

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11 TEXAS Occupant Variable Variable Storage Page Number Name Width Type Number OCCUPANT NUMBER 2 Numeric OCCUPANT AGE 2 Numeric OCCUPANT AGE - 5YR GRPS 2 Numeric OCCUPANT AGE - NSC GRPS 2 Numeric OCCUPANT SEX 1 Numeric OCCUPANT SEAT POSITION 1 Numeric OCC INJURY SEVERITY 1 Numeric RESTRAINING DEVICE USED 1 Numeric EJECTED FROM VEHICLE 1 Numeric VEH PART CAUSING INJURY 2 Numeric OCC BODY PART INJURED 1 Numeric EMERGENCY MEDICAL SERVIC 1 Numeric MOTORCYCLIST HELMET USE 1 Numeric MOTORCYCLIST EYE DEVICE 1 Numeric MOTORCYCLIST LENS COLOR 1 Numeric ALCOHOL/DRUG TEST TYPE 1 Numeric ALCOHOL/DRUG TEST RESULT 2 Numeric 73

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13 TEXAS Pedestrian/Cyclist Variable Variable Storage Page Number Name Width Type Number PED/CYCLIST NUMBER 2 Numeric PED/CYCLIST TYPE 1 Numeric PED/CYCLIST AGE 2 Numeric PED/CYCLIST AGE -5YR GRP 2 Numeric PED/CYCLIST AGE -NSC GRP 2 Numeric PED/CYCLIST SEX 1 Numeric PED/CYCLIST INJ SEVERITY 1 Numeric PED BODY PART INJURED 1 Numeric EMERGENCY MEDICAL SERVIC 1 Numeric ALCOHOL/DRUG TEST TYPE 1 Numeric ALCOHOL/DRUG TEST RESULT 2 Numeric PED ACTION 2 Numeric PED/CYCLIST DRINKING 1 Numeric PED/CYCLIST VIOLATING 1 Numeric 81

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15 TEXAS Page 1 Accident The ACCIDENT Variables Variables 1 through 45 describe the accident. They are included in the Accident, Vehicle, Occupant, and Ped/cyclist data sets. The Accident data set includes these variables and no others. Variable 1 DPS ACCIDENT NUMBER Width: 7 Type: Numeric Dec: None Miss: None Texas Department of Public Safety Accident Number Variable 2 YEAR Width: 2 Type: Numeric Dec: None Miss: None Variable 3 MONTH Width: 2 Type: Numeric Dec: None Miss: January February March April May June July August September October November December Variable 4 DAY OF MONTH Width: 2 Type: Numeric Dec: None Miss: Day of month

16 Page 2 TEXAS Accident Variable 5 DAY OF WEEK Width: 1 Type: Numeric Dec: None Miss: Sunday Monday Tuesday Wednesday Thursday Friday Saturday Variable 6 HOUR OF DAY Width: 2 Type: Numeric Dec: None Miss: :00 mid. - 12:59 a.m :00 a.m. - 1:59 a.m :00 a.m. - 2:59 a.m :00 a.m. - 3:59 a.m :00 a.m. - 4:59 a.m :00 a.m. - 5:59 a.m :00 a.m. - 6:59 a.m :00 a.m. - 7:59 a.m :00 a.m. - 8:59 a.m :00 a.m. - 9:59 a.m :00 a.m. - 10:59 a.m :00 a.m. - 11:59 a.m :00 noon - 12:59 p.m :00 p.m. - 1:59 p.m :00 p.m. - 2:59 p.m :00 p.m. - 3:59 p.m :00 p.m. - 4:59 p.m :00 p.m. - 5:59 p.m :00 p.m. - 6:59 p.m :00 p.m. - 7:59 p.m :00 p.m. - 8:59 p.m :00 p.m. - 9:59 p.m :00 p.m. - 10:59 p.m :00 p.m. - 11:59 p.m.

17 TEXAS Page 3 Accident Variable 7 JULIAN DAY FROM Width: 5 Type: Numeric Dec: None Miss: Julian Day Measured From March 1, January 1, December 31, 1999 Variable 8 COUNTY Width: 3 Type: Numeric Dec: None Miss: 999 Accidents in cities and on bridges spanning county lines may be coded in the wrong physical county for Texas Urban Project location purposes Anderson Andrews Angelina Aransas Archer Armstrong Atascosa Austin Bailey Bandera Bastrop Baylor Bee Bell Bexar Blanco Borden Bosque Bowie Brazoria Brazos Brewster Briscoe Brooks Brown Burleson Burnet Caldwell Calhoun Callahan Cameron Camp Carson

18 Page 4 TEXAS Accident Variable 8:COUNTY (Continued) Cass Castro Chambers Cherokee Childress Clay Cochran Coke Coleman Collin Collingsworth Colorado Comal Comanche Concho Cooke Coryell Cottle Crane Crockett Crosby Culberson Dallam Dallas Dawson Deaf Smith Delta Denton De Witt Dickens Dimmitt Donley Duval Eastland Ector Edwards Ellis El Paso Erath Falls Fannin Fayette Fisher Floyd Foard Fort Bend Franklin Freestone Frio Gaines Galveston Garza

19 TEXAS Page 5 Accident Variable 8:COUNTY (Continued) Gillespie Glasscock Goliad Gonzales Gray Grayson Gregg Grimes Guadalupe Hale Hall Hamilton Hansford Hardeman Hardin Harris Harrison Hartley Haskell Hays Hemphill Henderson Hildago Hill Hockley Hood Hopkins Houston Howard Hudspeth Hunt Hutchinson Irion Jack Jackson Jasper Jeff Davis Jefferson Jim Hogg Jim Wells Johnson Jones Karnes Kaufman Kendall Kenedy Kent Kerr Kimble King Kinney Kleberg

20 Page 6 TEXAS Accident Variable 8:COUNTY (Continued) Knox Lamar Lamb Lampasas La Salle Lavaca Lee Leon Liberty Limestone Lipscomb Live Oak Llano Loving Lubbock Lynn McCullough McLennan McMullen Madison Marion Martin Mason Matagorda Maverick Medina Menard Midland Milam Mills Mitchell Montague Montgomery Moore Morris Motley Nacogdoches Navarro Newton Nolan Nueces Ochiltree Oldham Orange Palo Pinto Panola Parker Parmer Pecos Polk Potter Presidio

21 TEXAS Page 7 Accident Variable 8:COUNTY (Continued) Rains Randall Reagan Real Red River Reeves Refugio Roberts Robertson Rockwall Runnels Rusk Sabine San Augustine San Jacinto San Patricio San Saba Schleicher Scurry Shackelford Shelby Sherman Smith Somervell Starr Stephens Sterling Stonewall Sutton Swisher Tarrant Taylor Terrell Terry Throckmorton Titus Tom Green Travis Trinity Tyler Upshur Upton Uvalde Val Verde Van Zandt Victoria Walker Waller Ward Washington Webb Wharton

22 Page 8 TEXAS Accident Variable 8:COUNTY (Continued) Wheeler Wichita Wilbarger Willacy Williamson Wilson Winkler Wise Wood Yoakum Young Zapata Zavala Variable 9 CITY Width: 2 Type: Numeric Dec: None Miss: City code (by county) Missing data Variable 10 POPULATION CLASS Width: 1 Type: Numeric Dec: None Miss: None Population Classification of Community Rural Population under 2, ,500-4, ,000-9, ,000-24, ,000-49, ,000-99, , , Population over 250,000

23 TEXAS Page 9 Accident Variable 11 ROAD CLASS Width: 1 Type: Numeric Dec: None Miss: Interstate (loops) U.S. & state highways (Lp, Sp, Alt, Pk, Bi, Bs, Bu, Rec, Bf) Farm to market (Lp, Sp, RM, Rec) County road City street Tollway Other road (alley) Beltway 8 East Tollbridge Variable 12 ROAD CURVATURE Width: 2 Type: Numeric Dec: None Miss: 99 Coded only for accidents in rural areas and cities not participating in the Texas Urban Project Straight degrees degrees degrees degrees degrees degrees degrees degrees degrees degrees or over Unknown Not coded Variable 13 ROAD ALIGNMENT Width: 1 Type: Numeric Dec: None Miss: 9 Road Alignment Straight - level Straight - grade Straight - hill crest Curve - level Curve - grade Curve - hill crest

24 Page 10 TEXAS Accident Variable 14 ROAD SURFACE CONDITION Width: 1 Type: Numeric Dec: None Miss: Dry Wet Muddy Snowy/Icy Variable 15 ROAD PAVEMENT CONDITION Width: 2 Type: Numeric Dec: None Miss: No defects Holes, ruts, etc., in surface Defective shoulder Foreign material on surface High water or flood debris Slick surface Obstruction in road - not lighted (night) Obstruction in road - not marked (day) Road under construction Maintenance or repair activity affecting traffic Variable 16 TRAFFIC CONTROL DEVICE Width: 2 Type: Numeric Dec: None Miss: 99 When more than one traffic control device is present, indicates the one most applicable to the accident No traffic control shown or inoperative Officer, flagman, or watchman Stop and go signal Stop sign Flashing red light Turn Marks Warning sign Railroad gates or signal Yield sign Center stripe or divider No passing zone Other traffic control

25 TEXAS Page 11 Accident Variable 17 ON/OFF ROADWAY Width: 1 Type: Numeric Dec: None Miss: On roadway Off roadway on shoulder Off roadway beyond shoulder Variable 18 ROADWAY PART INVOLVED Width: 1 Type: Numeric Dec: None Miss: Not coded or missing data Main lane Frontage road Entrance ramp Exit ramp Connection Detour Other Transitway Transitway ramp Variable 19 INTERSECTION RELATED Width: 1 Type: Numeric Dec: None Miss: Intersection Intersection related Driveway access Non-intersection Variable 20 INTERSECTING ROAD TYPE Width: 2 Type: Numeric Dec: None Miss: No intersection Intersection at Grade Level With main lanes of a numbered highway With frontage road of a numbered highway With Y connection With ramp With county road or city street

26 Page 12 TEXAS Accident Variable 20:INTERSECTING ROAD TYPE (Continued) Grade Separation With main lanes of a numbered highway With frontage road of a numbered highway With Y connection With county road or city street With crossover from one frontage road to another Variable 21 NO OF ENTERING ROADS Width: 1 Type: Numeric Dec: None Miss: 9 Number of Roads Entering Intersection Not applicable entering roads - T entering roads - Y entering roads - crossing or other entering roads entering roads Traffic circle (at or within intersection) Variable 22 OTHER ROADWAY FEATURE #1 Width: 2 Type: Numeric Dec: None Miss: 99 Other Roadway Feature That Was Factor in Accident - # Private drive or road Service station Cafe or grocery parking lot Shopping center lot, entrance, or exit Tavern or liquor store Drive-in theater Other business entrance or exit Factory or plant entrance or exit Military or naval entrance or exit Governmental area entrance or exit Other roadway feature not a factor

27 TEXAS Page 13 Accident Variable 23 OTHER ROADWAY FEATURE #2 Width: 2 Type: Numeric Dec: None Miss: 99 Other Roadway Feature That Was Factor in Accident - # Alley Parking area (within right-of-way) Roadside park entrance or exit Opening in median Crossover from one frontage road to another At detour Railroad grade crossing School Church or cemetery One or more traffic lanes closed for repair Other roadway feature not a factor Variable 24 WEATHER CONDITION Width: 1 Type: Numeric Dec: None Miss: Clear or cloudy Rain Snow Fog Blowing dust Smoke Other Sleeting Variable 25 LIGHT CONDITION Width: 1 Type: Numeric Dec: None Miss: Daylight Dawn Darkness - not lighted Darkness - lighted Dusk

28 Page 14 TEXAS Accident Variable 26 FIRST HARMFUL EVENT Width: 2 Type: Numeric Dec: None Miss: 99 Collision of Motor Vehicle With Pedestrian Another motor vehicle in transport Railroad train Parked car Pedalcyclist Animal Fixed object Other object Non-Collision Overturned Other non-collision Variable 27 TRAFFIC UNIT MIX Width: 2 Type: Numeric Dec: None Miss: 99 Traffic Unit Collision Mix or Configuration NOTE: Truck means heavy truck Single vehicle Car - car Car - truck Car - motorcycle Car - other Car - pedestrian, pedalcyclist Truck - truck Truck - motorcycle Truck - other Truck - pedestrian, pedalcyclist Motorcycle - motorcycle Motorcycle - other Motorcycle - pedestrian, pedalcyclist Other - other Other - pedestrian, pedalcyclist Three or more vehicles Missing data

29 TEXAS Page 15 Accident Variable 28 VEHICLE MOVEMENTS Width: 2 Type: Numeric Dec: None Miss: 99 Indicates the manner of collision and vehicular movements for two vehicle accidents, and vehicular movements for other accidents. Single Vehicle Movements Single vehicle going straight Single vehicle turning right Single vehicle turning left Single vehicle backing Other single vehicle movement Two Vehicles - Approaching at an Angle Both going straight Veh 1 going straight - veh 2 backing Veh 1 going straight - veh 2 stopped Veh 1 going straight - veh 2 turning right Veh 1 going straight - veh 2 turning left Veh 1 turning right - veh 2 turning right Veh 1 turning right - veh 2 turning left Veh 1 turning right - veh 2 stopped Veh 1 turning left - veh 2 turning left Veh 1 turning left - veh 2 stopped Two Vehicles - Going Same Direction Both going straight - rear end Both going straight - sideswipe Veh 1 going straight - veh 2 stopped Veh 1 going straight - veh 2 turning right Veh 1 going straight - veh 2 turning left Veh 1 turning right - veh 2 turning right Veh 1 turning right - veh 2 turning left Veh 1 turning right - veh 2 stopped Veh 1 turning left - veh 2 turning left Veh 1 turning left - veh 2 stopped Two Vehicles - Going Opposite Directions Both going straight Veh 1 going straight - veh 2 backing Veh 1 going straight - veh 2 stopped Veh 1 going straight - veh 2 turning right Veh 1 going straight - veh 2 turning left Veh 1 backing - veh 2 stopped Veh 1 turning right - veh 2 turning left Veh 1 turning right - veh 2 stopped Veh 1 turning left - veh 2 turning left Veh 1 turning left - veh 2 stopped Two Vehicles - Other Movements Veh 1 going straight - veh 2 entering or leaving parking space Veh 1 turning right - veh 2 entering or leaving parking space

30 Page 16 TEXAS Accident Variable 28:VEHICLE MOVEMENTS (Continued) Veh 1 turning left - veh 2 entering or leaving parking space Veh 1 entering or leaving parking space - veh 2 stopped Veh 1 entering or leaving parking space - veh 2 entering or leaving parking space Veh 1 backing - veh 2 backing Other two vehicle movement Variable 29 OBJECT STRUCK Width: 2 Type: Numeric Dec: None Miss: 99 This Variable, used in conjunction with Variable 26 (FIRST HARMFUL EVENT) and Variable 28 (VEHICLE MOVEMENTS) provides a more detailed picture of the accident. It may indicate either the first or second impact or collision, depending on the first harmful event. For example, if Variable 26 shows a collision with a fixed object, then the code value here would indicate the first impact. If Variable 26 shows a collision between two vehicles, then the code value here may indicate a second impact, or may be used to show vehicle movement No code shown is applicable Vehicle overturned Vehicle struck hole in road Vehicle jackknifed Person fell or jumped from vehicle Vehicle Struck Train on tracks parallel to road - no crossing Train - moving forward Train - backing Train - standing still Train - movement unknown Highway sign Curb Culvert, headwall Guard rail Railroad signal pole or post Railroad crossing gate Traffic signal pole or post Overhead (signal light, wires, signs, etc.) Work zone barricade, cones, signs, or material Luminaire pole Utility pole

31 TEXAS Page 17 Accident Variable 29:OBJECT STRUCK (Continued) Mail box Tree or shrub Fence House, building, or building fixture Commercial sign Other fixed object Work zone machinery or stockpiled materials Median barrier End of bridge (abutment or rail end) Side of bridge (bridge rail) Pier or support at underpass, tunnel, overhead sign bridge Top of underpass or tunnel Bridge crossing gate Attenuation device Falling/blowing rocks from a truck Fallen trees or debris on road Object from other vehicle on road Previously wrecked vehicle Other machinery Other object Concrete traffic barrier Delineator or marker post Retaining wall HOV lane gate Guard post Fire hydrant Ditch (long narrow excavation dug in earth) Embankment (a raised strip of land or berm) Variable 30 CONTRIBUTING FACTOR Width: 2 Type: Numeric Dec: None Miss: 99 The most pertinent factor contributing to the accident, applicable to any vehicle. Code 60 has priority over all other codes, followed by codes 70 through 73, then 13 through No code shown is applicable Lost control or skidded (icy or slick road, etc.) Passenger interfered with driver Attention diverted from driving (Delayed perception or lack of alertness) Open door or object projecting from vehicle Foot slipped off clutch or brake Gusty winds Vehicle passing or attempting to pass on left

32 Page 18 TEXAS Accident Variable 30:CONTRIBUTING FACTOR (Continued) Vehicle passing or attempting to pass on right Vehicle changing lanes One vehicle parked in an improper location One vehicle moving forward from parking One vehicle moving backward from parking One vehicle entering driveway One vehicle leaving driveway Vision Obstructed By Standing or parked vehicle Moving vehicle Embankment or ledge Commercial sign Highway sign Headlight or sun glare Hill crest Trees, shrubs, weeds, other vegetation Other visual obstruction Vehicle Swerved/Veered From Intended Course Reason not specified Because of surface or visibility To avoid officer, flagman, or traffic control device (unable to stop, etc.) To avoid pedestrian or pedalcyclist in road To avoid animal in road To avoid object in road To avoid vehicle stopped or moving slowly in traffic To avoid vehicle entering road To avoid veh from opposite direction in wrong lane To avoid previous crash Vehicle Slowing, Stopping, or Stopped on Road Reason not specified Because of surface or visibility To avoid officer, flagman, or traffic control device To avoid pedestrian or pedalcyclist in road To avoid animal in road To avoid object in road To avoid vehicle stopped or moving slowly in traffic To avoid vehicle entering road To avoid veh from opposite direction in wrong lane To avoid previous crash To make right turn To make left turn

33 TEXAS Page 19 Accident Variable 30:CONTRIBUTING FACTOR (Continued) Veh swerved to avoid veh passing, changing lanes (see 30-39) School Bus Related A school bus was involved, either as a participant or non-contact vehicle Construction Related Within posted road construction area - not construction related Within posted road construction area - construction related In other construction/maintenance area - not construction related In other construction/maintenance area - construction related Beach Related Accident happened on a beach Variable 31 BRIDGE ACCIDENT DETAIL Width: 1 Type: Numeric Dec: None Miss: 9 Indicates vehicle movement or other details after a bridgerelated accident (impact with bridge or related structure, or where the structure contributed to the accident) Structure not hit Vehicle retained on bridge or overpass Vehicle went through rail Vehicle went over rail Accident involved underpass Vehicle went between parallel structures Bridge not an accident factor Unknown Variable 32 INVESTIGATING AGENCY Width: 1 Type: Numeric Dec: None Miss: Department of Public Safety - citation Department of Public Safety - no citation City police - citation City police - no citation

34 Page 20 TEXAS Accident Variable 32:INVESTIGATING AGENCY (Continued) Sheriff s department - citation Sheriff s department - no citation Reported by other agency Office Report or missing data Variable 33 DISTRICT Width: 3 Type: Numeric Dec: None Miss: District code Unknown Variable 34 RR CROSSING NUMBER Width: 7 Type: Alphabetic Dec: None Miss: None Variable 35 BRIDGE NUMBER Width: 3 Type: Numeric Dec: None Miss: Bridge number Missing data Variable 36 TOTAL VEHICLES IN ACC Width: 2 Type: Numeric Dec: None Miss: None Total Vehicles in Acc Specifies the total number of vehicles involved in the accident, regardless of whether or not they were in the first impact. (This variable was not derived by UMTRI.) vehicle vehicles vehicles vehicles

35 TEXAS Page 21 Accident Variable 36:TOTAL VEHICLES IN ACC (Continued) vehicles vehicles vehicles vehicles vehicles vehicles - Number of vehicles vehicles Variable 37 WORST INJURY IN ACC Width: 1 Type: Numeric Dec: None Miss: 9 Worst Injury in Accident An "incapacitating injury" is defined as one where the injured is not able to walk or drive. A "non-incapacitating injury" can be a bump on the head, abrasions, minor lacerations, etc. A "possible injury" is identified as one where the injured is limping or complaining of pain K - fatal A - incapacitating injury B - nonincapacitating injury C - possible injury No injury Variable 38 TOTAL KILLED IN ACC Width: 2 Type: Numeric Dec: None Miss: None Total Killed in Accident (Derived By UMTRI) killed killed killed killed killed killed killed

36 Page 22 TEXAS Accident Variable 39 TOTAL INJURED IN ACC Width: 2 Type: Numeric Dec: None Miss: None Total Injured in Accident (Derived By UMTRI) injured injured injured injured injured injured - Count of total injured injured Variable 40 TOTAL A INJURED IN ACC Width: 2 Type: Numeric Dec: None Miss: None Total A (Incapacitated) Injured in Accident (Derived By UMTRI) A injured A injured A injured A injured A injured A injured - Count of total A injured A injured Variable 41 TOTAL B INJURED IN ACC Width: 2 Type: Numeric Dec: None Miss: None Total B (Non-Incapacitated) Injured in Accident (Derived By UMTRI) B injured B injured B injured B injured B injured B injured - Count of total B injured B injured

37 TEXAS Page 23 Accident Variable 42 TOTAL C INJURED IN ACC Width: 2 Type: Numeric Dec: None Miss: None Total C (Possible) Injured in Accident (Derived By UMTRI) C injured C injured C injured C injured C injured C injured - Count of total C injured C injured Variable 43 TOTAL CASUALTIES IN ACC Width: 2 Type: Numeric Dec: None Miss: None Total Casualties (Killed or Injured) in Accident (Derived By UMTRI) casualties casualty casualties casualties casualties casualties - Count of total casualties casualties Variable 44 TOTAL UNINJURED IN ACC Width: 2 Type: Numeric Dec: None Miss: None Total Known Uninjured in Accident (Derived By UMTRI) uninjured uninjured uninjured uninjured uninjured uninjured - Total count of known uninjured uninjured

38 Page 24 TEXAS Accident Variable 45 TOTAL PEDESTRIANS IN ACC Width: 2 Type: Numeric Dec: None Miss: None Total Pedestrians in Accident (Derived By UMTRI) pedestrians pedestrian pedestrians pedestrians pedestrians pedestrians pedestrians

39 TEXAS Page 25 Vehicle The VEHICLE Variables Variables 101 through 125 describe the vehicles involved in the accident. They are included in the Vehicle, Occupant, and Ped/cyclist data sets. The Vehicle data set includes these variables, along with the accident variables on a vehicle level. NOTE: Information has been coded only for those vehicles involved in the first harmful event, unless casualties occur in vehicles other than these, then, information concerning such vehicles has also been coded. Variable 101 VEHICLE NUMBER Width: 2 Type: Numeric Dec: None Miss: None Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle # Vehicle #18 Variable 102 VEHICLE MAKE/MODEL Width: 3 Type: Numeric Dec: None Miss: Other make Alfa Romeo Allis Chalmers AMC Commando AMC Gremlin AMC Hornet AMC Javelin AMC Jeep Cherokee AMC Jeep Wagoneer

40 Page 26 TEXAS Vehicle Variable 102:VEHICLE MAKE/MODEL (Continued) AMC Matador AMC Rambler AMC (not listed or unk) Audi Austin (not listed or unknown) Bentley Blue Bird BMW Buick Apollo Buick Century Buick Century Wagon Buick Regal Buick LeSabre Buick LeSabre Luxus Buick Estate Wagon Buick Electra Buick Riviera Buick (not listed or unknown) Cadillac Calais Cadillac DeVille Cadillac Eldorado Cadillac Fleetwood Cadillac (not listed or unknown) Mercury Capri Caterpillar Checker Marathon Chevrolet Bel Air Chevrolet Biscayne Chevrolet Blazer Chevrolet Camaro Chevrolet Caprice Chevrolet Chevelle Chevrolet Chevy II Chevrolet Corvette Chevrolet Corvair Chevrolet El Camino Chevrolet Impala Chevrolet Luv Chevrolet Malibu Chevrolet Monte Carlo Chevrolet Nova Chevrolet (not listed or unknown) Chrysler Imperial Chrysler Newport Chrysler New Yorker Chrysler Town & Country Chrysler Chrysler (not listed or unknown) Cushman Datsun Deere Diamond T or Reo

41 TEXAS Page 27 Vehicle Variable 102:VEHICLE MAKE/MODEL (Continued) Dodge Challenger Dodge Charger Dodge Colt Dodge Coronet Dodge Dart Dodge Monaco Dodge Polara Dodge Ram Charger Dodge (not listed or unknown) Federal Fiat Flexible Ford Bronco Ford Courier Ford Custom Ford Fairlane Ford Falcon Ford Galaxie Ford LTD Ford Mach I Ford Maverick Ford Mustang Ford Pinto Ford Ranchero Ford Thunderbird Ford Torino Ford (not listed or unknown) Freightliner GMC Jimmy GMC (not listed or unknown) Harley-Davidson Honda not listed or unknown Honda motorcycle International Scout International (not listed or unknown) Jaguar Kawasaki Kenworth Lincoln Continental not listed or unknown Lincoln Continental Mark Series Mack Mercedes-Benz not list or unknown Mercury Comet Mercury Cougar Mercury Cyclone Mercury Marquis Mercury Montego Mercury Monterey Mercury Park Lane Mercury (not listed or unknown) MGB Moto Guzzi

42 Page 28 TEXAS Vehicle Variable 102:VEHICLE MAKE/MODEL (Continued) Oldsmobile Custom Crusier Oldsmobile Cutlass Oldsmobile Delta Oldsmobile Omega Oldsmobile Oldsmobile Toronado Oldsmobile (not listed or unknown) Buick Opel Peterbilt Peugeot Plymouth Barracuda Plymouth Belvedere Plymouth Duster Plymouth Fury Plymouth Satellite Plymouth Scamp Plymouth Valiant Plymouth (not listed or unknown) Pontiac Bonneville Pontiac Catalina Pontiac Firebird Pontiac Grand Am Pontiac Grand Prix Pontiac Granville Pontiac Le Mans Pontiac Tempest Pontiac Ventura Pontiac (not listed or unknown) Porsche (not listed or unknown Rolls Royce Saab Silver Eagle Subaru not listed or unknown Suzuki motorcycle not listed or unknown Toyota Carina Toyota Celica Toyota Corolla Toyota Corona Toyota Hi-Lux Toyota Land Cruiser Toyota MX Mark II Toyota (not listed or unknown) Triumph Vespa Volkswagen Bug Volkswagen Karmann-Ghia Volkswagen Dasher Volkswagen (not listed or unknown) Volvo Ward White Yamaha