| AASHTO | American Association of State Highway and Transportation Officials |
| ATSAC | Automated Traffic Surveillance and Control, LADOT’s Traffic Control System |
| ATMS | Advanced Transportation Management System |
| CDI | Command/Data Interface |
| CORBA | Common Object Request Broker Architecture |
| COTS | Commercial-Off-The-Shelf (Software) |
| DPW | Department of Public Works |
| FHWA | Federal Highway Administration |
| HTTP | Hyper-Text Transfer Protocol |
| IDL | Interface Definition Language |
| IEN | Information Exchange Network |
| IIOP | Internet Inter-ORB Protocol |
| IMS | Incident Management System |
| ITE | Institute of Transportation Engineers |
| ITS | Intelligent Transportation Systems |
| JDBC | Java Database Connectivity |
| MS/ETMCC | Message Sets for External Traffic Management Center Communication |
| NTCIP | National Transportation Communications for ITS Protocol |
| ODBC | Open Database Connectivity |
| OLE | Object Linking and Embedding |
| PeMS | PeMS (Performance Measurement System) |
| RIITS | Regional Integration of Intelligent Transportation Systems |
| SAE | Society of Automotive Engineers |
| SNMP | Simple Network Management Protocol |
| SSL | Secure Sockets Layer |
| TCP/IP | Transmission Control Protocol/Internet Protocol |
| TCS | Traffic Control System |
| TMDD | Traffic Management Data Dictionary |
| VPN | Virtual Private Network |
| XML | Extensible Markup Language |
