Not finding an acronym you're looking for? Let us know. Chances are that if you're looking for it, someone else is too. Italicized text indicates publication titles.For more information about transportation acronyms, check out the Federal Bureau of Transportation Statistics Acronym Guide
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| AAAE |
American Association of Airport Executives |
| AADT |
Annual Average Daily Traffic |
| AAG |
Assistant Attorney General |
| AAMVA |
American Association of Motor Vehicle Administrators |
| AAR |
Association of American Railroads |
| AASHTO |
American Association of State Highway and Transportation Officials |
| ACP |
Asphalt Concrete Pavement |
| ACS |
Adaptive Contol Software |
| ADA |
Americans with Disabilities Act |
| ADC |
Automated Data Collection |
| ADT |
Average Daily Traffic |
| AGC |
Associated General Contractors |
| AIA |
American Institute of Architects |
| AIDA |
Advanced Incident Detection Algorithm |
| AISC |
American Institute of Steel Constructors, Inc. |
| ALP |
Airport Layout Plan |
| AMTRAK |
National Rail Passenger Corporation |
| ANSI |
American National Standards Institute |
| AOCI |
Airport Operators Council International |
| AOPA |
Aircraft Owners and Pilots Association |
| APAW |
Asphalt Paving Association of Washington |
| APD |
Airport Planning District |
| APTA |
American Public Transit Association |
| APWA |
American Public Works Association |
| AQCR |
Air Quality Control Requirements OR Air Quality Control Regulations |
| ARB |
Agency Request Budget |
| ARM |
Accumulated Route Mileage |
| ARTBA |
American Road and Transportation Builders Association |
| ARTCC |
Air Route Traffic Control Center |
| ASCE |
American Society of Civil Engineers |
| ASCII |
American Standard Code for Information Interchange |
| ASR |
Alkali-Silica Reactivity |
| ASTM |
American Society for Testing and Materials |
| ATA |
Airline Transport Association also American Trucking Association |
| ATR |
Annual Traffic Report |
| AVA |
Air Void Analyzer |
| AVMT |
Annual Vehicle Miles Traveled |
| AWC |
Association of Washington Cities |
| AWDT |
Average Weekday Traffic |
| AWDVTE |
Average Weekday Vehicle Trip Ends |
| AWS |
American Welding Society |
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| BASS |
Bid Analysis and Statistics System |
| B/C |
Benefit Cost |
| BEIST |
Bridge Engineering Information System |
| BIA |
Bureau of Indian Affairs (U.S.) |
| BM |
Bench Mark |
| BM |
Bureau of Mines (U.S.) |
| BMP |
Beginning Mile Post |
| BMP |
Best Management Practice |
| BPA |
Bonneville Power Administration |
| BST |
Bituminous Surface Treatment |
| BTS |
Bureau of Transportation Statistics (U.S.) |
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| CA |
Certification Acceptance |
| CAB |
Civil Aeronautics Board |
| CAC |
Collision Analysis Corridor |
| CACHS |
Citizens' Advisory Committee on Highway Safety |
| CAD |
Computer Aided Drafting |
| CADD |
Computer Aided Drafting and Design |
| CAE |
Computer Automated Engineering |
| CAL |
Collision Analysis Location |
| CAP |
Civil Air Patrol |
| CAPS |
Contract Administration and Payment System |
| CBD |
Central Business District |
| CBRT |
Committee for Balanced Regional Transportation |
| CCIS |
Construction Contract Information System |
| C-D |
Collector-Distributor Road |
| CE - NEPA |
Categorical Exclusion (U.S.) |
| CE - SEPA |
Categorical Exemption |
| CEQ |
Council on Environmental Quality |
| CFR |
Code of Federal Regulations |
| CICAS |
Cooperative Intersection Collision Avoidance Systems |
| CLAS |
Collision Location and Analysis System |
| CLB |
Current Law Budget |
| CLCF |
County Location Coding Form |
| CMAQ |
Congestion Mitigation/Air Quality |
| CMP |
Corridor Management Plan |
| CN |
Construction |
| COE |
Corps of Engineers (U.S.) |
| CPMS |
Capital Program Management System |
| CRAB |
County Road Administration Board |
| CRASH |
Collision Reporting and Statistical History |
| CRGC |
Columbia River Gorge Commission |
| CS |
Control Section |
| CSBC |
Crushed Surfacing Base Course |
| CSG |
Council of State Governments |
| CSTC |
Crushed Surfacing Top Course |
| CTA |
County Transportation Authority |
| CTR |
Commute Trip Reduction |
| CVE |
Commercial Vehicle Enforcement |
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| D |
Directive |
| DBE |
Disadvantaged Business Enterprise |
| DBR |
Discretionary Bridge Replacement |
| DDHV |
Directional Design Hour Volume |
| DEIS |
Draft Environmental Impact Statement |
| DHRD |
Division of Human Resource Development |
| DHV |
Design Hour Volume |
| DIS |
Department of Information Services |
| DMI |
Distance Measuring Instrument |
| DNR |
Department of Natural Resources |
| DNS |
Determination of NonSignificance |
| DOA |
Department of the Army (U.S.) |
| DOE |
Department of Ecology (Washington State) |
| DOL |
Department of Licensing |
| DOP |
Department of Personnel |
| DOT |
Department of Transportation |
| DP |
Data Processing |
| DSHS |
Department of Social and Health Services |
| DVMT |
Daily Vehicle Miles Traveled |
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| EA |
Environmental Assessment |
| ECS |
Environmental Classification Summary |
| EAA |
Experimental Aircraft Association |
| EBASE |
Estimate Bid Analysis Systems (Replaces BASS) |
| ECM |
Electronic Content Management |
| ECR |
External Civil Rights Branch, a suborganization of the Equal Opportunity Office |
| ECS |
Environmental Classification Summary |
| EDM |
Electronic Distance Measurers |
| EDWMS |
Electronic Document Workflow Management System |
| EEO |
Equal Employment Opportunity |
| EIS |
Environmental Impact Statement |
| ELT |
Electronic Locator Transmitters |
| EMP |
Ending Mile Post |
| EOC |
Emergency Operations Center |
| EPA |
Environmental Protection Agency |
| ESD |
Employment Security Department (Washington State) |
| ESD |
Educational Services District |
| ESA |
Endangered Species Act |
| ESAL |
Equivalent Single Axle Load |
| ETC |
Employee Transportation Coordinator |
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| FA |
Federal Aid |
| FAA |
Federal Aviation Administration |
| FAI |
Federal Aid Interstate |
| FAME |
Freeway and Arterial Management Effort |
| FAP |
Federal Aid Primary |
| FAPG |
Federal Aid Policy Guide |
| FARS |
Fatal Analysis Reporting System |
| FAS |
Federal Aid Secondary |
| FASP |
Federal Aid Safety Program |
| FAST Corridor |
Freight Action Strategy for the Everett-Seattle-Tacoma Corridor |
| FAU |
Federal Aid Urban |
| FAUS |
Federal Aid Urban Systems |
| F&B |
Finance and Budget Management Division |
| FC |
Functional Classification |
| FEA |
Final Environmental Assessment |
| FEIS |
Final Environmental Impact Statement |
| FEMA |
Federal Emergency Management Agency |
| FERC |
Federal Energy Regulatory Commission |
| FGTS |
Freight and Goods Transportation System |
| FHPM |
Federal-Aid Highway Program Manual |
| FHWA |
Federal Highway Administration |
| FIC |
Flight Instructor Clinic |
| FMAC |
Freight Mobility Advisory Committee |
| FMCSA |
Federal Motor Carrier Safety Administration |
| FMSIB |
Freight Mobility Strategic Investment Board |
| FONSI |
Finding of No Significant Impact |
| FRA |
Federal Railroad Administration |
| FS |
Forest Service |
| FSS |
Flight Service Station |
| FTA |
Federal Transit Administration |
| FY |
Fiscal Year |
| 4-R |
Highway Reconstruction, Resurfacing, Restoration, and Rehabilitation |
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| GA |
General Administration, Department of |
| GAMA |
General Aviation Manufacturers Association |
| GHGs |
Greenhouse Gases |
| GIS |
Geographic Information Systems |
| GMA |
Growth Management Act |
| GP |
General Purpose |
| GPS |
Global Positioning System |
| GRDO |
GIS and Roadway Data Office |
| GSP |
General Special Provision |
| GVW |
Gross Vehicle Weight |
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| HAR |
Highway Advisory Radio |
| HCM |
Highway Capacity Manual |
| HCTS |
High Capacity Transportation Study |
| HMA |
Hot Mix Asphalt (aka ACP) |
| HOT |
High Occupancy Toll |
| HOV |
High Occupancy Vehicles |
| HPA |
Hydraulic Project Approval |
| HPMS |
Highway Performance Monitoring System |
| HSIG |
Highway Safety Issues Group |
| HQ |
Headquarters |
| HSF |
Highway Safety Fund (State) |
| HSIS |
Highway Safety Information System |
| HSP |
State Highway System Plan |
| HSRC |
Highway Safety Research Center |
| HSS |
Highways of Statewide Significance |
| HTF |
Highway Trust Fund (U.S.) |
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| I |
Interstate (route) |
| IAC |
Inter-Agency Committee for Outdoor Recreation |
| I/C |
Interchange |
| ICC |
Interstate Commerce Commission (U.S.) |
| IDC |
Intra-Departmental Communication |
| IDT |
Interdisciplinary Team |
| IGGA |
International Grooving & Grinding Association |
| IFPTE |
International Federation of Professional and Technical Engineers (former name); see Professional and Technical Engineers (PTE) |
| IFR |
Instrument Flight Rules |
| IL |
Instructional Letter |
| ILS |
Instrument Landing System |
| ILT |
Incident Location Tool |
| IMS |
Intermodal Management System |
| IRD |
International Roadway Dynamics |
| IRI |
International Roughness Index |
| ISTEA |
Intermodal Surface Transportation Efficiency Act, see also SAFETEA-LU, which updates this Act |
| ITE |
Institute of Traffic Engineers |
| ITS |
Intelligent Transportation System |
| IVHS |
Intelligent Vehicle Highway System |
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| JLARC |
Joint Legislative Audit and Review Committee |
| JTC |
Joint Transportation Committee |
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| KM |
Knowledge Management |
| KIPS |
1000 lbs. |
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| LBC |
Legislative Budget Committee |
| L&I |
Labor and Industries |
| LOS |
Level of Service |
| LRFD |
Load and Resistance Factor Design |
| LTAP |
Local Technical Assistance Program |
| LTPP |
Long Term Pavement Performance |
| LTC |
Legislative Transportation Committee |
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| MARAD |
Maritime Administration (U.S.) |
| MBE |
Minority Business Enterprise |
| METRO |
Municipality of Metropolitan Seattle |
| MFRS |
Mileage and Facilities Reporting System |
| MIRE |
Minimum Inventory of Roadway Elements |
| MIS |
Management Information Systems |
| MLMP |
Mainline Milepost |
| MMIS |
Manpower Management Information Systems |
| MMUCC |
Model Minimum Uniform Crash Criteria |
| MOU |
Memorandum of Understanding |
| MP |
Master Plan |
| MP |
Milepost |
| MPO |
Metropolitan Planning Organization |
| MSD |
Metropolitan Service District |
| MSR |
Merit System Rules |
| MTIP |
Metropolitan Transportation Improvement Program |
| MUTCD |
Manual on Uniform Traffic Control Devices |
| MVET |
Motor Vehicle Excise Tax |
| MVF |
Motor Vehicle Fund |
| MWBE |
Minority and Women's Business Enterprise |
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| NAAQS |
National Ambient Air Quality Standards |
| NARUC |
National Association of Regulatory Utility Commissioners |
| NAS |
Naval Air Station |
| NASAO |
National Association of State Aviation Officials |
| NBAA |
National Business Aviation Association |
| NCHRP |
National Cooperative Highway Research Program |
| NCPP |
National Center for Pavement Preservation |
| NEC |
National Electrical Code |
| NEMA |
National Electrical Manufacturers' Association |
| NEPA |
National Environmental Policy Act |
| NGS |
United States National Geodetic Survey |
| NGVD |
National Geodetic Vertical Datum (1929) |
| NHS |
National Highway System |
| NHTSA |
National Highway Traffic Safety Administration |
| NOAA |
National Oceanographic and Atmospheric Administration |
| NPDES |
National Pollutant Discharge Elimination System |
| NPS |
National Park Service |
| NMFS |
National Marine Fisheries Service |
| NRCC |
Natural Resource Coordinating Committee |
| NSC |
National Safety Council |
| NTSB |
National Transportation Safety Board |
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| OAHP |
Office of Archaeology and Historic Preservation |
| O-D |
Origin-Destination (survey or zone) |
| OFM |
Office of Financial Management |
| OIG |
Office of Inspector General (U.S.) |
| O&M |
Operations and Maintenance |
| OMB |
Office of Management and Budget |
| ORV |
Off-Road Vehicle |
| OSC |
Olympia Service Center |
| OUM |
Office of Urban Mobility |
| O'XING |
Overcrossing |
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| PACE |
Political Action for Concerned Employees |
| PAO |
Public Affairs Office |
| PC |
Point of Curvature |
| PCCP |
Portland Cement Concrete Pavement |
| PDO |
Project Development Office |
| PE |
Preliminary Engineering |
| PE |
Project Engineer |
| PE |
Professional Engineer |
| PIO |
Public Information Office (or Officer) |
| PM |
Project Manager |
| PMBOK |
Project Management Body of Knowledge |
| PR&PT |
Planning, Research and Public Transportation Division |
| PSCCA |
Puget Sound Capitol Construction Account (Ferries) |
| PSCOG |
Puget Sound Council of Governments |
| PS&E |
Plans, Specifications, and Estimate |
| PSFOA |
Puget Sound Ferry Operations Account |
| PSRC |
Puget Sound Regional Council |
| PT |
Point of Tangent |
| PTBA |
Public Transportation Benefit Area |
| PTE |
Professional and Technical Engineers (formerly IFPTE) |
| PTF |
Public Transfer Facility |
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| RAP |
Rural Arterial Program |
| RAPCON |
Radar Approach Control |
| RATA |
Rural Arterial Trust Account |
| RCW |
Revised Code of Washington |
| RDP |
Route Development Plan |
| RFP |
Request for Proposal |
| RMIS |
Records Management Imaging Services |
| ROD |
Record of Decision |
| RR |
Railroad |
| RRR (3R) |
Resurfacing, Restoration, and Rehabilitation |
| RTA |
Regional Transit Authority |
| RTIP |
Regional Transportation Improvement Program |
| RTPO |
Regional Transportation Planning Organization |
| R/W |
Right of Way |
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| SA |
State Aid |
| SAFETEA-LU |
Safe, Accountable, Flexible, Efficient Transportation Equity Act – A Legacy for Users; see also ISTEA |
| SAR |
Search and Rescue |
| SEIS |
Supplemental Environmental Impact Statement |
| SEPA |
State Environmental Policy Act |
| SHPO |
State Historic Preservation Officer |
| SHSP |
State Highway System Plan also known as the HSP |
| SME |
Subject Matter Expert |
| SOV |
Single Occupancy Vehicle |
| SPCC |
Spill Prevention, Control, and Countermeasure Plan |
| SPHA |
State Patrol Highway Account |
| SR |
State Route |
| SRP |
Secondary Road Plan |
| SSP |
Stormwater Site Plan |
| St. Aid |
State Aid |
| STCDO |
Statewide Travel & Collision Data Office (formerly known as the Transportation Data Office) |
| STIP |
Statewide Transportation Improvement Program |
| STP |
Surface Transportation Program (funded through ISTEA) |
| SWPPP |
Stormwater Pollution Prevention Plan |
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| TAC |
Technical Advisory Committee |
| TCP |
Traffic Control Plan |
| TDM |
Transportation Demand Management |
| TDM |
Travel Demand Management |
| TDO |
Transportation Data Office (see STCDO) |
| TEA-21 |
Transportation Equity Act for the 21st Century of 1998 |
| TEF |
Transportation Equipment Fund |
| TIA |
Transportation Improvement Account |
| TIB |
Transportation Improvement Board |
| TIP |
Transportation Improvement Program |
| TOPICS |
Urban Traffic Operations Programs to Improve Capacity and Safety |
| TPO |
Transportation Planning Office |
| TRAC |
Washington State Transportation Center |
| TRB |
Transportation Research Board |
| TRIS |
Transportation Research Information Services |
| TSC |
Traffic Safety Commission |
| TSM |
Transportation Systems Management |
| TTAP |
Tribal Technical Assistance Program |
| TWLTL |
Two-Way Left-Turn Lane |
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| UAB |
Urban Arterial Board |
| UATA |
Urban Arterial Trust Account |
| UBC |
Uniform Building Code |
| UFAS |
Uniform Federal Accessibility Standards |
| UMTA |
Urban Mass Transportation Administration (U.S.) |
| UPC |
Uniform Plumbing Code |
| US |
United States (route) |
| USBR |
United States Bureau of Reclamation |
| USC |
United States Code |
| USCG |
United States Coast Guard |
| USDOE |
United States Department of Energy |
| USDOT |
United States Department of Transportation |
| USED |
United States Engineering Department (Corps of Engineers, Department of the Army) |
| USFS |
United States Forest Service (U.S. Department of Agriculture) |
| USFWS |
United States Fish and Wildlife Service |
| USGS |
United States Geological Survey |
| UTC |
Utilities and Transportation Commission |
| U'XING |
Undercrossing |
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| VPH |
Vehicles Per Hour |
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| WAA |
Washington Aviation Association |
| WAC |
Washington Administrative Code |
| WACO |
Washington Association of County Officials |
| WAMA |
Washington Airport Management Association |
| WASHTO |
Western Association of State Highway and Transportation Officials |
| WBE |
Women's Business Enterprise |
| WDFD |
Western Direct Federal Division (FHWA) |
| WFF |
Washington Flying Farmers |
| WOA |
Work Order Authorization |
| WPA |
Washington Pilots Association |
| WPCP |
Water Pollution Control Plan |
| WPEA |
Washington Public Employees Association |
| WPPSS |
Washington Public Power Supply System |
| WDFW |
Washington Department of Fish and Wildlife |
| WSASP |
Washington State Airport System Plan |
| WSDOT |
Washington State Department of Transportation |
| WSECU |
Washington State Employees' Credit Union |
| WSF |
Washington State Ferries |
| WSP |
Washington State Patrol |
| WSTA |
Washington State Transit Association |
| WSTC |
Washington State Transportation Commission |
| WSTP |
Washington State Transportation Plan |
| WTP |
Washington's Transportation Plan |
| WTSC |
Washington Traffic Safety Commission |
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Questions or comments about the acronym guide? Contact the WSDOT HQ Library at mailto:Library@wsdot.wa.gov or (360) 705-7750.
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