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- National Research Council (U.S.). Transportation Research Board
- Second Strategic Highway Research Program (U.S.) 26 canlyniadau
- United States. Federal Highway Administration 15 canlyniadau
- United States. Federal Transit Administration 7 canlyniadau
- Cambridge Systematics 6 canlyniadau
- Turnbull, Katherine F. 6 canlyniadau
- Parsons Brinckerhoff 4 canlyniadau
- National Cooperative Transit Research & Development Program (U.S.) 3 canlyniadau
- Conference on Research on Women's Issues in Transportation Chicago, Ill 2 canlyniadau
- Hazardous Materials Cooperative Research Program 2 canlyniadau
- ICF International (Firm) 2 canlyniadau
- International Conference on Women's Issues in Transportation Irvine, Calif 2 canlyniadau
- Kimley-Horn and Associates 2 canlyniadau
- National Cooperative Highway Research Program 2 canlyniadau
- Potts, Ingrid B. 2 canlyniadau
- United States. Urban Mass Transportation Administration 2 canlyniadau
- AECOM (Firm) 1 canlyniadau
- Airport Cooperative Research Program 1 canlyniadau
- American Association of State Highway and Transportation Officials 1 canlyniadau
- Anater, Patrick 1 canlyniadau
- Andrle, Stephen, 1948- 1 canlyniadau
- Antin, Jonathan F. (Jonathan Frank), 1961- 1 canlyniadau
- Bradley, Mark A. 1 canlyniadau
- Brijmohan, Andy 1 canlyniadau
- Castiglione, Joe (Writer on transportation) 1 canlyniadau
- Chase, Keith M. 1 canlyniadau
- Chen, Ying 1 canlyniadau
- Conference on Integrating Sustainability into the Transportation Planning Process Baltimore, Md 1 canlyniadau
- Conference on Performance Measures to Improve Transportation Systems and Agency Operations Irvine, Calif 1 canlyniadau
- Conference on Transportation Finance for the 21st Century 1 canlyniadau
- Conference on Transportation Issues in Large U.S. Cities 1 canlyniadau
- Conference on Transportation in an Aging Society : a Decade of Experience Bethesda, Maryland 1 canlyniadau
- Delcan Corporation 1 canlyniadau
- EU-U.S. Transportation Research Symposium 1 canlyniadau
- Economic Development Research Group 1 canlyniadau
- European Commission 1 canlyniadau
- European Union 1 canlyniadau
- Ferragut, Theodore R. 1 canlyniadau
- Florida. Dept. of Transportation 1 canlyniadau
- Forum on Future Directions in Transportation R&D Washington, D.C. 1 canlyniadau
- Gaines, Danena 1 canlyniadau
- Gliebe, John 1 canlyniadau
- Gordon Proctor & Associates 1 canlyniadau
- Hancock, Kathleen L. (Kathleen Louise) 1 canlyniadau
- Heilman, Jeff 1 canlyniadau
- Herbel, Susan 1 canlyniadau
- High Street Consulting Group 1 canlyniadau
- Hranac, Rob 1 canlyniadau
- Innovations in Travel Demand Modeling Conference Austin, Tex 1 canlyniadau
- International Conference on Performance Measurement 1 canlyniadau rhagor...