Creator
- United States. Bureau of Transportation Statistics[remove]35
- Stackhouse, Cecil16
- United States. Bureau of the Census. Geography Division7
- United States. Federal Aviation Administration2
- United States. Federal Transit Administration2
- Vanderbilt Engineering Center for Transportation Operations and Research2
- Waterborne Commerce Statistics Center (U.S.)2
- Institute for Water Resources (U.S.). Navigation Data Center1
- Rawson, Peg1
- Strocko, Ed1
- United States. Federal Highway Administration1
- United States. Office of the Deputy Under Secretary of Defense (Installations and Environment)1