Data Dictionary

Field Name Name Type Description Fixed Values
ACCIDENT_NO Accident Number 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
SURFACE_COND Surface Condition CHAR(1) Road surface conditions on which the crash occurred e.g. dry, wet, muddy Code Description 1 Dry 2 Wet 3 Muddy 4 Snowy 5 Icy 9 Unknown
SURFACE_COND_SEQ Surface Condition Sequence INTEGER(10) Starts with 1 and incremented by 1 if more than one road surface condition is entered for the same incident.
SURFACE_COND_DESC SURFACE COND DESC VARCHAR(100) A descriptive field that indicates Road surface conditions on which the crash occurred e.g. dry, wet, muddy Code Description 1 Dry 2 Wet 3 Muddy 4 Snowy 5 Icy 9 Unknown

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 Road Surface Condition
Dataset File Size 3.8 MiB
Dataset Security Value BIL1 OFFICIAL - Authorised Public Release
Dataset Reporting Period Start 1 January 2012
Dataset Reporting Period End 31 August 2024