Annual average daily traffic (AADT) is the total volume of vehicle traffic on a highway or road for a year divided by 365 days. AADT is a useful and simple measurement of how busy a road is. The AADT traffic data can be used for:
The AADT Layer is a line layer that can be added to any Maptitude or TransCAD map. A size theme has already been added to the layer to help visualize the counts, but users can customize the layer any way they wish.
"I have a point layer of residences and a line layer of roads with traffic counts. I use the Overlay tool to calculate average traffic within 1,000 meters of each residence. All seems to work perfectly."
Bob McLaughlin
Dept. of Health Services Environmental Health Investigations Branch