1-5 National Highway System Pavement Condition

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percent of vehicle miles traveled

1-5 National Highway System Pavement Condition

Note: Pavement condition is measured by the International Roughness Index (IRI).

Source: U.S. Department of Transportation, Federal Highway Administration, 2010 Status of the Nation's Highways, Bridges, and Transit: Conditions & Performance, available at www.fhwa.dot.gov/policy/2010cpr as of September 2013.