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Find a Commonwealth ResourceU.S Department of Transportation
A 'vital sign' for the U.S. roadway system. It measures the total mileage traveled by all motor vehicles on public roads during a specific period.
Updated Oct 25, 2026
U.S Department of Transportation
A GeoJSON file with all spatial roadway data for all sections from the 2024 Highway Performance Monitoring System (HPMS) attached to the All Road Network of Linear Referenced Data (ARNOLD) network. This file was…
Updated Oct 25, 2026
U.S Department of Transportation
Select summary highway statistics, 1980 - 2017, mileage, lane-miles, vehicle miles traveled, and fatalities by state and functional system.
Updated Oct 25, 2026
U.S Department of Transportation
The Highway Performance Monitoring System (HPMS) compiles data on highway network extent, use, condition, and performance. The system consists of a geospatially‐enabled database that is used to generate reports and…
Updated Oct 25, 2026
U.S Department of Transportation
Limited data from the 2016 Highway Performance Monitoring System (HPMS) with spatial data.
Updated Oct 25, 2026
U.S Department of Transportation
State DOTs provide Local and Rural Minor Collector mileage summarized by county and ownership as a direct input to the Highway Performance Management System (HPMS).
Updated Oct 25, 2026
U.S Department of Transportation
In the flagged files, PHMSA add data that are routinely used during data analysis and when presenting certain 20-year trends. Information includes: serious incidents (involving a fatality or injury requiring in-patient…
Updated Oct 25, 2026
U.S Department of Transportation
The Summary Statistics dashboard includes rural and urban measures for roadway mileage, lane miles, vehicle miles traveled, fatalities, and fatality rate.
Updated Oct 25, 2026
