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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. ...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 07:32 PM -
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Highway Performance Monitoring System (HPMS)
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 provides tools for data...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 07:32 PM -
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 provides tools for data...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 07:36 PM -
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 provides tools for data...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 07:33 PM
