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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

4-1 Road Congestion: 1985–2014

Wednesday, December 23, 2015

Table Version | Excel

4-1 Road Congestion: 1985–2014

Notes: The methodology used to calculate congestion performance measures was updated to reflect more comprehensive data collection including congestion estimates for each of the 471 U.S. urban areas.

Source: Texas A&M Transportation Institute, 2015 Urban Mobility Scorecard, available at mobility.tamu.edu as of September 2015.