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2018 Annual Average Daily Traffic (AADT) GIS Map

Alaska Traffic Counts (AADT) ArcGIS Online map - Online map shows the AADT for years 2012 to 2018

What is Annual Average Daily Traffic (AADT):

AADT is the total number of vehicles traveling over a given road segment during one 24 hour day. AADT is simple but is a useful measurement of how busy the road is.

Traffic volume data is collected throughout the entire year at approximately 115 continuous counting stations (CCS) sites statewide. These CCS sites are used to expand seasonal volume pneumatic tube or hose counts, which are referred to as short term counts. Short term counts are placed throughout the state May – September, weather permitting. Summer traffic is generally much higher than other times of the year; therefore the counts are adjusted for weekday and seasonal variations by using associated CCS’s to obtain an estimated AADT. The calculated AADT then represents the traffic on the specific traffic link on which the count was taken.

Other traffic data statistics are available, such as vehicle classification, peak hour, and more. Please see the Contact Us page.

Navigation Tips:

  • Users can navigate by scrolling and zooming to their desired area, or by entering address or place names in the search field. Place the cursor on the desired area and use the mouse wheel to zoom quickly to that area.

  • Users can select from a variety of base maps upon which to display the AADT information.

  • When using the search field this function searches information on the selected base map. For example, when searching for a particular street, the search will succeed when the 'Streets' basemap is selected, but not when the 'Oceans" map is selected.

  • Click on the Legend button to display the color codes for the different AADT levels.

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If you have questions, please contact Regional Highway Data Managers.