| AASHTO |
American Association of State Highway and Transportation Officials |
| ACOG |
Association of Central Oklahoma Governments |
| ADA |
American Disabilities Act |
| ASCE |
American Society of Civil Engineers |
| BNSF |
Burlington Northern and Santa Fe Railway Company |
| CBD |
Central Business District |
| CFR |
Code of Federal Regulations |
| CPM |
Critical Path Method (schedule) |
| DEIS |
Draft Environmental Impact Statement |
| DEQ |
(Oklahoma) Department of Environmental Quality |
| DOT |
Department of Transportation |
| EB |
East bound (direction) |
| EPA |
Environmental Protection Agency |
| FEIS |
Final Environmental Impact Statement |
| FEMA |
Federal Emergency Management Agency |
| FFGA |
Full Funding Grant Agreement |
| FHWA |
Federal Highway Administration |
| FTA |
Federal Transit Administration |
| ISTEA |
Intermodal Surface Transportation Efficiency Act |
| ITS |
Intelligent Transportation System |
| IVHS |
Intelligent Vehicle Highway System |
| LOS |
Level of Service |
| LPA |
Locally Preferred Alternative |
| LRT |
Light Rail Transit |
| MAPS |
Metropolitan Area Projects |
| MIS |
Major Investment Study |
| MPO |
Metropolitan Planning Organization |
| NEPA |
National Environmental Policy Act |
| NB |
Northbound (Direction) |
| NHPA |
National Historic Preservation Act |
| NHS |
National Highway System |
| NRHP |
National Register of Historic Places |
| NTP |
Notice-to-Proceed |
| ODOT |
Oklahoma Department of Transportation |
| O&M |
Operations and Maintenance |
| OMB |
Office of Management and Budget |
| OSPE |
Oklahoma Society of Professional Engineers |
| PMP |
Project Management Plan |
| ROD |
Record of Decision |
| R-O-W, ROW |
Right-of-Way |
| SAFETEA-LU |
Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users |
| SB |
Southbound (direction) |
| SIC |
Standard Industrial Codes |
| SHPO |
State Historic Preservation Office(r) (Oklahoma) |
| SOV |
Single Occupancy Vehicle |
| STIP |
Statewide Transportation Improvement Program |
| SUE |
Subsurface Utility Engineering |
| TEA-21 |
Transportation Equity Act for the 21st Century |
| TIP |
Transportation Improvement Program |
| UPRR |
Union Pacific Railroad Company |
| USDOT |
United States Department of Transportation |
| WB |
Westbound (direction) |