Transportation Libraries & Research
- California Center for Innovative Transportation
- California Partners for Advanced Transit & Highways
- CALTRANS Library and History Center
- Center for Global Metropolitan Studies
- Center for Sustainable Energy
- Directory of Transportation Libraries
- Institute for Transportation and Development Policy
- International Transport Research Documentation
- International Transport Resources
- LACMTA Metro Research Center/Transportation Library
- METRANS Transportation Center UTC Search
- Metropolitan Transportation Commission Library (Bay Area)
- Mineta Transportation Institute (SJSU)
- National Center for Bicycling and Walking
- National Center for Transit Research at the University of South Florida
- National Center of Excellence for Aviation Operations
- National Transportation Library
- Northwestern University Transportation Library
- RAND - Transportation & Infrastructure
- Sources of Information in Transportation
- Texas Transportation Institute
- Traffic Safety Center
- Transportation Research Board (TRB)
- Transportation Research Information Service (TRIS)
- Transportation Sustainability Research Center
- Tranzinfo - Australian & New Zealand Network of Transport Libraries
- U.C. Berkeley Transportation Library
- U.S. DOT Volpe Center Library
- UC Irvine Institute of Transportation Studies
- UCLA Institute of Transportation Studies
- UMTRI Transportation Research Institute
- University of California Transportation Center
- University Transportation Centers (UTC) Program
- USC/CSULB METRANS Transportation Research Center
- Victoria Transport Institute
- World Bank Transport