Data Dictionary

Field Name Name Type Description Fixed Values
ACCIDENT_NO ACCIDENT_NO CHAR(12) ACCIDENT_NO is the Primary Key for the database to uniquely identify the accident and cannot contain NULL values. First character T indicates TIS incident and characters 2-5 typically represent the year in which the accident created in TIS system and characters 6-11 are a numeric sequencing number
EVENT_SEQ_NO SEQUENCE INTEGER(10) EVENT_SEQ_NO is an integer field that starts with 1 and incremented for more than one event in the same accident. This field cannot contain NULL values.
EVENT_TYPE EVENT TYPE CHAR(1) EVENT_TYPE is a character field indicates type of incident event. This field cannot contain NULL values. 0 Not applicable 1 Rollover on/off carriageway 2 Fell from vehicle 3 Ran off carriageway 4 Mechanical failure 5 Struck by stone/projectile/load 6 Fell in vehicle 8 Other 9 Not known C Collision
EVENT_TYPE_DESC EVENT TYPE DESC VARCHAR(100) Is a descriptive field that indicates type of incident event. This field cannot contain NULL values. 0 Not applicable 1 Rollover on/off carriageway 2 Fell from vehicle 3 Ran off carriageway 4 Mechanical failure 5 Struck by stone/projectile/load 6 Fell in vehicle 8 Other 9 Not known C Collision
VEHICLE_1_ID FIRST PARTICIPANT VEHICLE ID CHAR(1) VEHICLE_1_ID is character field indicates first vehicle involved in the event. Vehicle ID has a letter value assigned to them. This field cannot contain NULL values.
VEHICLE_1_COLL_PT POINT OF COLLISION 1 CHAR(1) VEHICLE_1_COLL_PT is a character field indicates collision point on the vehicle. This field cannot contain NULL values.
VEHICLE 1 COLL PT DESC VEHICLE 1 COLL PT DESC VARCHAR(100) Its a descriptive field that indicates collision point on the vehicle. This field cannot contain NULL values. 0 Towed unit 1 Right front corner 2 Right side (forwards) 3 Right side (rearwards) 4 Right rear corner 5 Left front corner 6 Left side (forwards) 7 Left side (rearwards) 8 Left rear corner 9 Not known or Not Applicable F Front N None R Rear S Sidecar T Top/Roof U Undercarriage
VEHICLE_2_ID SECOND PARTICIPANT VEHICLE ID CHAR(1) VEHICLE_2_ID is character field indicates second vehicle involved in the event. Vehicle ID has a letter value assigned to them. This field cannot contain NULL values
VEHICLE_2_COLL_PT POINT OF COLLISION 2 CHAR(1) VEHICLE_2_COLL_PT is a character field indicates collision point on the vehicle. This field cannot contain NULL values.
VEHICLE 2 COLL PT DESC VEHICLE 2 COLL PT DESC VARCHAR(100) It's a descriptive field that indicates collision point on the vehicle. This field cannot contain NULL values. 0 Towed unit 1 Right front corner 2 Right side (forwards) 3 Right side (rearwards) 4 Right rear corner 5 Left front corner 6 Left side (forwards) 7 Left side (rearwards) 8 Left rear corner 9 Not known or Not Applicable F Front N None R Rear S Sidecar T Top/Roof U
PERSON_ID PERSON_ID CHAR(2) Uniquely identifies each person involved in the accident. Persons who are drivers of a vehicle have a letter value assigned to them and persons who are not drivers have a numerical value assigned to them.
OBJECT_TYPE OBJECT TYPE CHAR(2) OBJECT_TYPE is a character field that identifies object involved in the specific accident event. This field cannot contain NULL values. 1 Pole (telephone/electricity) 2 Tree (shrub/scrub) 3 Fence/Wall (including gates) 17 Traffic island
OBJECT_TYPE_DESC OBJECT TYPE DESC VARCHAR(100) It's a descriptive field that identifies object involved in the specific accident event. This field cannot contain NULL values. 1 Pole (telephone/electricity) 2 Tree (shrub/scrub) 3 Fence/Wall (including gates) 17 Traffic island

Additional information

Field Value
Dataset Last Updated Date 14 April 2025
Last Updated Date 13 April 2025
Publication Date 1 January 2012
Format CSV
License Creative Commons Attribution 4.0
Open Data Title Accident Event
Dataset File Size 23.8 MiB
Dataset Security Value BIL1 OFFICIAL - Authorised Public Release
Dataset Reporting Period Start 1 January 2012
Dataset Reporting Period End 31 August 2024