Creator
- United States. Bureau of Transportation Statistics51
- Stackhouse, Cecil17
- United States. Bureau of the Census. Geography Division7
- Hunt, Raquel4
- United States. Federal Highway Administration3
- Waterborne Commerce Statistics Center (U.S.)3
- Institute for Water Resources (U.S.). Navigation Data Center2
- Rawson, Peg2
- Strocko, Ed2
- United States. Federal Aviation Administration2
- United States. Federal Transit Administration2
- Vanderbilt Engineering Center for Transportation Operations and Research2
- Battelle Memorial Institute1
- Beningo, Steve1
- Blades, Doug1
- Firestine, Theresa1
- Geological Survey (U.S.)1
- Hudgins, Andrew1
- Jessberger, Steven1
- John A. Volpe National Transportation Systems Center (U.S.)1