- USDOT Joint Program Office (JPO)
- USDOT Research and Innovative Technology Administration (RITA)
- US Trade and Development Agency
- International Bank for Reconstruction and Development (World Bank)
- UK Highways Agency
- Maryland SHA
- Michigan DOT
- Virginia DOT
- Washington DC DOT
- North Carolina DOT
- Florida Turnpike
- Orlando-Orange County Expressway Authority
- City of Norfolk
- City of Syracuse, NY
- City of Columbus, OH
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- Arlington County, VA
- University of Maryland
- Society of Automotive Engineers
- Affiliated Computer Services (ACS)
- Atkins Transport Systems
- Booz Allen Hamilton
- Cambridge Systematics
- HNTB
- Iteris
- McMahon and Associates
- Open Roads Consulting Inc.
- Parsons Brinckerhoff
- SAIC
- SSFM
- Transurban
- Telvent
- URS
- VHB
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