| AASHTO |
American Association of State Highway and Transportation Officials |
| ADT |
Average Daily Traffic |
| ATIS |
Advanced Traveler Information System |
| ATSSA |
American Traffic Safety Services Association |
| AVI |
Automatic Vehicle Identification |
| AVL |
Automatic Vehicle Location |
| CCTV |
Closed-Circuit Television |
| CITE |
Consortium for ITS Training and Education |
| CMS |
Changeable Message Sign |
| COTS |
Commercial Off-The-Shelf |
| DB |
Design-Build |
| DOT |
Department of Transportation |
| FCC |
Federal Communications Commission |
| FHWA |
Federal Highway Administration |
| GPS |
Global Positioning System (Satellite) |
| HAR |
Highway Advisory Radio |
| IP |
Internet Protocol |
| ITS |
Intelligent Transportation Systems |
| IDAS |
ITS Deployment Analysis System |
| JPO |
Joint Program Office |
| LED |
Light Emitting Diode |
| LTAP |
Local Technical Assistance Program |
| MCO |
Maintenance & Construction Operations |
| MOE |
Measure of Effectiveness |
| MUTCD |
Manual of Uniform Traffic Control Devices |
| NCHRP |
National Cooperative Highway Research Program |
| NHI |
National Highway Institute |
| NTCIP |
National Transportation Communications for ITS Protocol |
| PCB |
Professional Capacity Building |
| PCMS |
Portable Changeable Message Sign |
| RFID |
Radio Frequency Identification |
| RFP |
Request for Proposals |
| RITA |
Research and Innovative Technology Administration |
| TMC |
Transportation Management Center |
| TMP |
Transportation Management Plan |
| TRB |
Transportation Research Board |
| UNII |
Unlicensed National Information Infrastructure |
| VSL |
Variable Speed Limit |
| VMT |
Vehicle Miles Traveled |
| V2I |
Vehicle-to-Infrastructure |
| V2V |
Vehicle-to-Vehicle |
| Wi-Fi |
Wireless Internet/Network |
