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- Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)9
- Great Britain. War Office. General Staff. Geographical Section.7
- Atlanta Regional Commission5
- United States. Army Map Service.5
- Federal Highway Administration4
- Bureau of Transportation Statistics3
- Research and Innovative Technology Administration's Bureau of Transportation Statistics3
- Federal Highway Administration, Office of Planning, Environment, & Realty2
- Federal Transit Administration (FTA)2
- Metropolitan Atlanta Rapid Transit Authority2
- National Oceanographic and Atmospheric Administration2
- Oak Ridge National Laboratories2
- Survey of Pakistan.2
- U.S. Army Corps of Engineers2
- U.S. Bureau of Census2
- U.S. Geological Survey2
- United States. Bureau of Transportation Statistics2
- United States. Bureau of Transportation Statistics.2
- Vanderbilt Engineering Center for Transportation Operations and Research2
- Vanderbilt Engineering Center for Transportation Operations and Research Vanderbilt University2