Creator
- United States. Bureau of Transportation Statistics13
- Gap Analysis Program (U.S.)3
- United States. Bureau of the Census. Geography Division3
- 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
- Blades, Doug1
- Lubkin, Samantha1
- United States. Federal Highway Administration. Office of Highway Policy Information1
- United States. Office of the Deputy Under Secretary of Defense (Installations and Environment)1