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Traffic Volumes

Traffic count histories (ADT or average daily traffic) are available online for state count stations from 1985 to present.

TDOT site
Transportation Data Management System
Select the desired county from the drop down menu above the map of Tennessee.  Zoom in with the plus and minus feature to locate the area where you need a count.  The panning feature (hand) will appear automatically.  The red dots are the count stations.  Position the panning hand on the red dot so that it has a pointing finger.  Left click on the dot and the ADT counts will appear on the right side of your screen.

Development Resource Center
1250 Market Street, Suite 3030 (map)
Chattanooga, TN 37402
Office Hours: 8 am to 4:30 pm
Phone: (423) 643-5950

Request new or report problems with existing traffic control devices by calling 311, (423) 643-6311, or by visiting

Photo by Phillip Stevens and Matt Lea