Annual Average Daily Traffic (AADT)

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:

  • selecting a new site or facility location, evaluating a site, or designing a territory
  • determining funding for highway maintenance and improvement
  • forecasting road maintenance needs and expenditure
  • identifying the best location for your business based on traffic patterns
  • analyzing how traffic may impact store construction
  • analyzing the environmental hazards of pollution related to road transport

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.

Available File Formats:

Available in Caliper CDF format for use with Maptitude 2018 and TransCAD. To learn about data availability in other GIS file formats, please contact a Caliper data expert today by emailing sales@caliper.com or by calling us at +1 617-527-4700.

Price: FREE For Maptitude 2018 and current TransCAD users

Maptitude map with AADT traffic volume layer

Maptitude map with AADT traffic volume layer

"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