| AASHTO | American Association of State Highway and Transportation Officials |
| BTS | Bureau of Transportation Statistics |
| COE | Center of Excellence |
| COI | Center of Innovation |
| CSU | California State University |
| CUTC | Council of University Transportation Centers |
| DHS | Department of Homeland Security |
| DOT | Department of Transportation (State or Federal) |
| FAA | Federal Aviation Administration |
| FHWA | Federal Highway Administration |
| FMCSA | Federal Motor Carrier Safety Administration |
| FRA | Federal Railroad Administration |
| FTA | Federal Transit Administration |
| FY | Fiscal Year |
| ISTEA | Intermodal Surface Transportation Efficiency Act of 1991 |
| IRWG | Intermodal Research Working Group |
| ITS | Intelligent Transportation Systems |
| ITS JPO | Intelligent Transportation Systems Joint Program Office |
| LECD | Light Emitting Ceramic Device |
| LTAP | Local Technical Assistance Program |
| METRANS | National Center for Metropolitan Transportation Research |
| MIOHUTC | Michigan Ohio University Transportation Center |
| MIT | Massachusetts Institute of Technology |
| MPO | Metropolitan Planning Organization |
| NA | Not applicable |
| NCHRP | National Cooperative Highway Research Program |
| NHI | National Highway Institute |
| NHTSA | National Highway Traffic Safety Administration |
| OST | Office of the Secretary of Transportation |
| OTREC | Oregon Transportation Research and Education Consortium |
| PHMSA | Pipeline and Hazardous Materials Safety Administration |
| RFID | Radiofrequency Identification |
| RiP | Research in Progress |
| RITA | Research and Innovative Technology Administration |
| SAFETEA-LU | Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users |
| TBD | To be determined |
| TCRP | Transit Cooperative Research Program |
| TEA-21 | Transportation Equity Act for the 21st Century |
| TEDIS | Transportation and Economic Development Information System |
| TMF | Traffic Mitigation Fee |
| TRANSIMS | Transportation Analysis Simulation System |
| TRB | Transportation Research Board |
| TRIS | Transportation Research Information Services Online |
| TTAP | Tribal Technical Assistance Program |
| UC | University of California |
| UCLA | University of California Los Angeles |
| UO | University of Oregon |
| US DOT | United States Department of Transportation |
| UTC | University Transportation Center |
| VII | Vehicle Infrastructure Integration |
| WCTR | World Congress on Transportation Research |