Transportation acronym guide

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For more information about transportation acronyms, check out the Federal Bureau of Transportation Statistics Acronym Guide


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
A/B Able Bodied
ACHP Advisory Council on Historic Preservation
ACI American Concrete Institute
ACP Asphalt Concrete Pavement
ACS Adaptive Control 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
AIRS Automated Infrared Roadside Scanning
AISC American Institute of Steel Construction
ALP Airport Layout Plan
ALPR Automatic License Plate Reader
AMD Asphalt Mix Design
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
ARA Assistant Regional Administrator
ARB Agency Request Budget
ARM Accumulated Route Mileage
ARRA American Recovery and Reinvestment Act
ARTBA American Road and Transportation Builders Association
ARTCC Air Route Traffic Control Center
ASA Aggregate Source Approval
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
ATMS Automated Training Management System
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
AWV Alaskan Way Viaduct


BASS Bid Analysis and Statistics System
B/C Benefit Cost
BEIST Bridge Engineering Information System
BIA Bureau of Indian Affairs (U.S.)
BLM Bureau of Land Management
BM Bench Mark
BM Bureau of Mines (U.S.)
BMP Beginning Mile Post
BMP Best Management Practice
BOD Basis of Design
BOE Basis of Estimate
BPA Bonneville Power Administration
BST Bituminous Surface Treatment
BTA Bridge Technical Advisor
BTS Bureau of Transportation Statistics (U.S.)


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
CAT Cooperative Automated Transportation
CBD Central Business District
CBRT Committee for Balanced Regional Transportation
CCA Coarse Concrete Aggregates
CCI Construction Cost Index
CCIS Construction Contract Information System
C-D Collector-Distributor Road
CDC Center for Disease Control and Prevention
CDF Controlled Density Fill
CE - NEPA Categorical Exclusion (U.S.)
CE - SEPA Categorical Exemption
CESCL Certified Erosion and Sediment Control Lead
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
CMD Concrete Mix Design
CMP Corridor Management Plan
CN Construction
CO Carbon Monoxide
CO2 Carbon Dioxide
CO2E Carbon Dioxide Equivalents
COE Corps of Engineers (U.S.)
CPMS Capital Program Management System
CPDM Capital Program Development & Management
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
CVISN Commercial Vehicle Information Systems & Networks
CVPS Commercial Vehicle Pass System


D Directive
DAHP Department of Archaeology and Historic Preservation
DART Days Away, Restricted Duty, or Job Transfer
dB Decibels
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)
DOH Washington State Department of Health
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


EA Environmental Assessment
EB Eastbound
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
EOB End of Biennium
EOC Emergency Operations Center
EOR Engineer of Record
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


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 Fatality 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
FBP Ferry Boat Program (funded through MAP-21)
FC Functional Classification
FCA Fine Concrete Aggregates
FEA Final Environmental Assessment
FEIS Final Environmental Impact Statement
FEMA Federal Emergency Management Agency
FERC Federal Energy Regulatory Commission
FFY Federal Fiscal Year
FGTS Freight and Goods Transportation System
FHPM Federal-Aid Highway Program Manual
FHWA Federal Highway Administration
FIC Flight Instructor Clinic
FLB Facilities and Lease Board
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
FRAP Freight Rail Assistance Program
FRIB Freight Rail Investment Bank
FS Forest Service
FSS Flight Service Station
FTA Federal Transit Administration
FTE Full Time Equivalent
FY Fiscal Year
4-R Highway Reconstruction, Resurfacing, Restoration, and Rehabilitation


GA General Administration, Department of
GAMA General Aviation Manufacturers Association
GASB Governmental Accounting Standards Board
GCOM General Contractor/Construction Management
GHGs Greenhouse Gases
GIS Geographic Information Systems
GMA Growth Management Act
GMAP Government Management, Accountability and Performance
GNB Gray Notebook
GOIA Governor's Office of Indian Affairs
GP General Purpose
GPS Global Positioning System
GRDO GIS and Roadway Data Office
GSP General Special Provision
GTEC Growth and Transportation Efficiency Center
GVW Gross Vehicle Weight


HAR Highway Advisory Radio
HATS Highway Activities Tracking System
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
HSIP Highway Safety Improvement Program
HSM Highway Safety Manual
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.)
HVAC Heating, Ventilation and Air Conditioning


I Interstate (route)
IAC Inter-Agency Committee for Outdoor Recreation
I/C Interchange
ICC Interstate Commerce Commission (U.S.)
IDC Intra-Departmental Communication
IDR Inspector’s Daily Report
IDT Interdisciplinary Team
IGGA International Grooving & Grinding Association
IFR Instrument Flight Rules
IHSDM Interactive Highway Safety Design Model
IL Instructional Letter
ILS Instrument Landing System
ILT Incident Location Tool
IMS Intermodal Management System
IR Incident Response
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 Transportation Engineers
ITS Intelligent Transportation System
IVHS Intelligent Vehicle Highway System


JLARC Joint Legislative Audit and Review Committee
JOPS Joint Operations Policy Statement
JTC Joint Transportation Committee


KM Knowledge Management
KIPS 1000 lbs.


LBC Legislative Budget Committee
LEAP Legislative Evaluation and Accountability Program
L&I Labor and Industries
LLCC Lowest Life Cycle Cost
LNG Liquefied Natural Gas
LMS Learning Management System
LMY Lane Mile Years
LOS Level of Service
LOUPA Letter Of Understanding Project Award
LRFD Load and Resistance Factor Design
LTAP Local Technical Assistance Program
LTPP Long Term Pavement Performance
LTC Legislative Transportation Committee


MAISA Multi Agency Interdisciplinary Stakeholder Advisory
MAP Maintenance Accountability Process
MAP-21 Moving Ahead for Progress in the 21st Century
MAPO Metropolitan Area Planning Organization
MARAD Maritime Administration (U.S.)
MBE Minority Business Enterprise
MEF Maximum Extent Feasible
METRO Public Transit Authority of King County
MFRS Mileage and Facilities Reporting System
MIC Manufacturing and Industrial Center
MIRE Minimum Inventory of Roadway Elements
MIS Management Information Systems
MLMP Mainline Milepost
MMIS Manpower Management Information Systems
MMT Million Metric Tons
MMUCC Model Minimum Uniform Crash Criteria
MOA Memoranda of Agreement
MOU Memorandum of Understanding
MP Master Plan
MP Milepost
MPO Metropolitan Planning Organization
MQPR Mid-Quarter Progress Report
MRSC Municipal Research and Services Center of Washington
MSD Metropolitan Service District
MSR Merit System Rules
MTIP Metropolitan Transportation Improvement Program
MTP Materials Tracking Program
MTCO2e Metric Tons of Carbon Dioxide Equivalent
MUTCD Manual on Uniform Traffic Control Devices
M/V Motor/Vessel
MVET Motor Vehicle Excise Tax
MVF Motor Vehicle Fund
MVMT Million Vehicle Miles Traveled
MWBE Minority and Women's Business Enterprise
MSVWBE Minority, Small, Veteran, or Women Business Enterprise


NAAQS National Ambient Air Quality Standards
NARUC National Association of Regulatory Utility Commissioners
NAS Naval Air Station
NASAO National Association of State Aviation Officials
NB Northbound
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)
NHCA National Hearing Conservation Association
NHPA National Historic Preservation Act
NHPP National Highway Performance Program
NHS National Highway System
NHTSA National Highway Traffic Safety Administration
NIOSH National Institute for Occupational Safety and Health
NOAA National Oceanic and Atmospheric Administration
NPIAS National Plan of Integrated Airport Systems
NPDES National Pollutant Discharge Elimination System
NPRM Notice of Proposed Rule Making
NPS National Park Service
NMFS National Marine Fisheries Service
NRCC Natural Resource Coordinating Committee
NRCS Natural Resources Conservation Service
NRHP National Register of Historic Places
NSC National Safety Council
NSC North Spokane Corridor
NTEP National Transportation Product Evaluation Program
NTSB National Transportation Safety Board
NTU Nephelometric Turbidity Unit


OAHP Office of Archaeology and Historic Preservation
O-D Origin-Destination (survey or zone)
OEO Office of Equal Opportunity
OFM Office of Financial Management
OIG Office of Inspector General (U.S.)
O&M Operations and Maintenance
OMB Office of Management and Budget
OMWBE Office of Minority and Women's Business Enterprises
ORIA Office of Regulatory Innovation and Assistance
ORV Off-Road Vehicle
OS Ordinary Seaman
OS Operating System
OSC Olympia Service Center
OSHA Occupational Safety and Health Administration
OUM Office of Urban Mobility
O'XING Overcrossing


PACE Political Action for Concerned Employees
PAO Public Affairs Office
PC Point of Curvature
PCC Palouse River and Coulee City
PCCP Portland Cement Concrete Pavement
PCI Pavement Condition Index
PCI Precast/Prestressed Concrete Institute
PDO Project Development Office
PDR Public Disclosure Request
PE Preliminary Engineering
PE Project Engineer
PE Professional Engineer
PEF Pre-Existing Funds
PIO Public Information Office (or Officer)
PM Project Manager
PMBOK Project Management Body of Knowledge
PMRS Project Management Reporting System
PMTS Professional Membership Tracking System
POG Priorities of Government
PPE Personal Protective Equipment
PR&PT Planning, Research and Public Transportation Division
PRIIA Passenger Rail Investment and Improvement Act
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 Employees
PTF Public Transfer Facility


QA/QC Quality Assurance/Quality Control
QPL Qualified Products List
QPR Quarterly Project Report
QR Quality Response
QR Quick Response


RA Regional Administrator
RAM Request for Approval of Materials
RAP Rural Arterial Program
RAP/RAS Recycled Asphalt Pavement/Recycled Asphalt Shingles
RAPCON Radar Approach Control
RATA Rural Arterial Trust Account
RCFB Recreation and Conservation Funding Board
RCO Washington State Recreation and Conservation Office
RCR Recycled Concrete Rubble
RCW Revised Code of Washington
RDP Route Development Plan
RFP Request for Proposal
RIR Recordable Incident Rate
RMIS Records Management Imaging Services
ROD Record of Decision
RPM Raised/Recessed Pavement Marker Maintenance
RR Railroad
RRR (3R) Resurfacing, Restoration, and Rehabilitation
RSL Remaining Service Life
RTA Regional Transit Authority
RTIP Regional Transportation Improvement Program
RTPO Regional Transportation Planning Organization
RV Recreational Vehicle
R/W Right of Way


SA State Aid
SAFETEA-LU Safe, Accountable, Flexible, Efficient Transportation Equity Act – A Legacy for Users; see also MAP-21, which updates this Act
SAM Statistical Analysis of Materials
SAO State Auditor's Office
SAR Search and Rescue
SB Southbound
SBE Small Business Enterprise
SCIP State Capital Improvement Program
SD Structurally Deficient
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


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
TEIS Transportation Executive Information System
THPO     Tribal Historic Preservation Officer
TIA Transportation Improvement Account
TIB Transportation Improvement Board
TIGER Transportation Investment Generating Economic Recovery
TIP Transportation Improvement Program
TNB Tacoma Narrows Bridge
TOPICS Urban Traffic Operations Programs to Improve Capacity and Safety
TPA Transportation Partnership Account
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


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
UORR Utility Object Relocation Record
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
USEPA United States Environmental Protection Agency
UTC Utilities and Transportation Commission
UTL Unable to Locate
U'XING Undercrossing


VMT Vehicle Miles Traveled
VPH Vehicles Per Hour


WAA Washington Aviation Association
WAC Washington Administrative Code
WACO Washington Association of County Officials
WAMA Washington Airport Management Association
WAPA Washington Asphalt Paving Association
WAQTC Washington Alliance for Quality Transportation Construction
WASHTO Western Association of State Highway and Transportation Officials
WB Westbound
WBE Women's Business Enterprise
WDFD Western Direct Federal Division (FHWA)
WDFW Washington State Department of Fish and Wildlife
WDNR Washington State Department of Natural Resources
WFF Washington Flying Farmers
WITS Washington Incident Tracking System
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
WUCC Washington Utility Coordination Council


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YTD Year to Date


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Questions or comments about the acronym guide? Contact the WSDOT HQ Library at or (360) 705-7750