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- United States. Bureau of Transportation Statistics27
- Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)10
- United States. Federal Highway Administration.5
- Federal Railroad Administration (FRA)4
- FHWA3
- Federal Transit Administration (FTA)3
- International Steering Committee for Global Mapping (ISCGM)3
- United States. Army. Corps of Engineers.3
- Federal Highway Administration2
- Federal Highway Administration (FHWA)2
- United States. Department of Transportation. Research and Innovative Technology Administration2
- Vanderbilt Engineering Center for Transportation Operations and Research Vanderbilt University2
- Federal Aviation Administration1
- Federal Motor Carrier Safety Administration1
- National Renewable Energy Laboratory1
- National Renewable Energy Laboratory (U.S.)1
- Research and Innovative Technology Administration's Bureau of Transportation Statistics1
- Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS), National Transportation Atlas Database (NTAD) 2013, Geospatial Information Services1
- U.S. Customs and Border Protection1
- United States. Bureau of the Census.1