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Traffic management levels

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)

Levels of TTM applied in the Code of Practice

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)