Creator
- United States. Bureau of Transportation Statistics10
- United States. Federal Highway Administration3
- United States. Federal Aviation Administration2
- Vanderbilt Engineering Center for Transportation Operations and Research2
- Waterborne Commerce Statistics Center (U.S.)2
- Beningo, Steve1
- Blades, Doug1
- Environmental Systems Research Institute (Redlands, Calif.)1
- Geological Survey (U.S.)1
- Liu, Zhi1
- Lubkin, Samantha1
- National Atlas of the United States1
- United States. Bureau of Customs and Border Protection1
- United States. Department of Housing and Urban Development1
- United States. Federal Highway Administration. Office of Highway Policy Information1