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Traffic Data
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.
2025 Vehicle Miles Book - Excel format (data for 1970-2025)
2025 Vehicle Miles Book - PDF Format (data for 2020-2025 only)
Interactive Transportation System Map
The Interactive Transportation System Map 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. Note: the map currently uses 2021 traffic count data
Annual Automatic Traffic Recorder Report Map
Monthly Automatic Traffic Recorder Reports
A summary of data collected by month at various traffic monitoring sites in Wyoming.
Past years reports can be found under the "navigate" menu on the top right side of this page.
January 2026 Monthly Volume Report.pdf
(26.74 MB)
February 2026 Monthly Volume Report.pdf
(26.73 MB)
March 2026 Montly Volume Report.pdf
(26.75 MB)
April 2026 Monthly Volume Report.pdf
(19.62 MB)
May 2026 Monthly Volume Report.pdf
(19.62 MB)
June 2026 Monthly Volume Report.pdf
(19.62 MB)
Monthly Hourly, Day of the Week Summary
These documents show average daily traffic counts for the day of the week and time of day.
Past years reports can be found under the "navigate" menu on the top right side of this page.
Jan 2026 Monthly Hourly Volume.pdf
(11.85 MB)
Feb 2026 Montly Hourly Volume.pdf
(10.83 MB)
March 2026 Monthly Hourly Volume.pdf
(10.82 MB)
April 2026 Monthly Hourly Volume.pdf
(10.58 MB)
May 2026 Monthly Hourly Volume.pdf
(11.94 MB)
June 2026 Monthly Hourly Volume.pdf
(9.81 MB)
