All state highways are classified as a specific temporary traffic management (TTM) level , dependent on the traffic volumes.
View the interactive map showing TTM levels for state highways.
TTM interactive map(external link)
Level LV - low volume roads (Annual average daily traffic (AADT) less than 500 vehicles per day (VPD))
Level 1 - low to moderate volume roads (AADT 500 to 10,000 VPD)
Level 2 - high volume roads (AADT greater than 10,000 VPD)
Level 3 - high volume, high speed multi-lane roads, expressways and motorways (AADT greater than 10,000 VPD and speed greater than 75 km/h)
