The following information is provided as a reference by the Wyoming Department of Transportation. Traffic volumes included are estimates.


Traffic Volume and Vehicle Miles Book

Annual Average Daily Traffic estimates (AADTs) are derived from three primary sources of data: permanent traffic recorders, portable traffic recorders and Manual traffic classification counts. AADTs are multiplied by road length to calculate Vehicle Miles Traveled.

2021 Vehicle Miles Book - Excel format (data for 1970-2021)

2021 Vehicle Miles Book - PDF Format (data for 2020 and 2021 only) 

The Interactive Transportation System Map is a new online offering from WYDOT that provides traffic count data and other information about the state road system. The map uses GIS technology to allow users to choose from one or more data layers, the last being Traffic Counts (2015).

Annual Automatic Traffic Recorder Report Map

2016-map-small.jpg