Data Dictionary

Field Name Name Type Description Fixed Values
date Date DATE The date of the record in yyyy-mm-dd format.
time_bin Time Bin TIME The 15 minute time bin during which the detections were recorded.
site Site INTEGER The site key which indicates the location of the record.
vehicle_class Vehicle Class INTEGER The Austroads level 3 vehicle class reference. 0 - Motorcycles, 1 - Short vehicle, 2 - Short vehicle towing, 3 - Two axle rigid truck or bus, 4 - Three axle rigid truck or bus, 5 - Greater than 3 axle rigid truck, bus or crane, 6 - Three axle articulated or rigid vehicle and trailer, 7 - Four axle articulated or rigid vehicle and trailer, 8 - Five axle articulated or rigid vehicle and trailer, 9 - Six axle (or more) articulated or rigid vehicle and trailer, 10 - B-double or heavy truck trailer, 11 - Double road train or heavy truck and trailers, 12 - Triple road train or heavy truck and three trailers, 13 - Error, 14 - Bicycles
speed_bin Speed Bin TEXT The speed bin of the records in 5km/h increments.
volume Volume INTEGER The count of vehicles during the 15 minute period for the specified site, vehicle class and speed bin.

Additional information

Field Value
Dataset Last Updated Date 6 March 2026
Format ZIP
License Creative Commons Attribution 4.0
Open Data Title TIRTL 15 Minute Aggregate Data
Dataset File Size 110.4 MiB
Dataset Security Value BIL1 OFFICIAL - Authorised Public Release
Dataset Reporting Period Start 1 November 2025
Dataset Reporting Period End 30 November 2025
Geographic Coverage Victoria