A design prototype by Datopian, not an official website
Find a Commonwealth ResourceU.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
This is list of data elements and their attributes that are used by data assets at the Federal Highway Administration.
Updated Oct 25, 2026
U.S Department of Transportation
Annual road length by measured pavement roughness using the IRI (International Roughness Index) by functional class for the 50 states, DC, and PR from the Highway Statistics Series table HM-64. Note: Missing 2010 and…
Updated Oct 25, 2026
