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Author
- Geographic Data Technology, Inc. (GDT)56
- United States. Bureau of Transportation Statistics26
- Bureau of Transportation Statistics14
- National Atlas of the United States13
- ESRI9
- Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)9
- Environmental Systems Research Institute (Redlands, Calif.)7
- TomTom North America, Inc.7
- Esri6
- Geological Survey (U.S.)6
- Thomas, William G., 1964-6
- Environmental Systems Research Institute, Inc. (ESRI)5
- Federal Highway Administration4
- Hunt, Raquel4
- Tele Atlas North America, Inc./Geographic Data Technology, Inc.4
- Vanderbilt Engineering Center for Transportation Operations and Research4
- National Atlas of the United States and the United States Geological Survey3
- National Renewable Energy Laboratory (U.S.)3
- Platts3
- Research and Innovative Technology Administration's Bureau of Transportation Statistics3