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Department of Transportation
Dataset Description
Annual lane miles in the National Highway System by rural / urban and functional system for the 50 states, DC, and Puerto Rico from the Highway Statistics table HM-43. (Note: In 2009, Functional System changed attributes.)
Organization: Department of Transportation
Organization URL: https://catalog.data.gov/organization/dot
Last updated: 2026-04-23
Tags: functional system, highway performance monitoring system, highway statistics, highways, hppi, lane miles