December 9, 2019 Update: While working on a similar project, researchers discovered an error in the analysis of congestion costs contained in the 2019 Urban Mobility Report. Values in the report and urban area data tables have been corrected throughout this site. These figures should be used in place of all earlier estimates.
For More Information
2019 Urban Mobility Report
Congestion growth continues. The 2019 Urban Mobility Report provides a comprehensive analysis of traffic conditions in 494 urban areas across the United States. The report points to the need to consider a full range of mobility improvement strategies. TTI’s 2019 edition uses crowdsourced data from INRIX on urban streets and highways, along with highway inventory data from the Federal Highway Administration. The report was sponsored by the Texas Department of Transportation.