Acronyms & Abbreviations

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See also: WSDOT, MRSC, Acronym Finder


AADT - Annual Average Daily Traffic
AASHTO - American Association of State Highway and Transportation Officials
ACS - American Community Survey
ADA - Americans with Disabilities Act
ADT - Average Daily Traffic
AMI - Area Median Income
AMPO - Association of Metropolitan Planning Organizations
APTA - American Public Transit Association
AQ - Air Quality
ARRA - American Recovery and Reinvestment Act of 2009
ATA - American Trucking Association
AWC - Association of Washington Cities


BEA - Bureau of Economic Analysis (U.S.)
BETI - Building Efficiency Testing and Integration
BIA - Bureau of Indian Affairs (U.S.)
BLS - Bureau of Labor Statistics (U.S.)
BNSF - Burlington Northern Santa Fe
BPAC - Bicycle/Pedestrian Advisory Committee
BR - Bridge Replacement or Rehabilitation
BRCT - Blue Ribbon Commission on Transportation
BRT - Bus Rapid Transit
BTS - Bureau of Transportation Statistics (U.S.)


CAAA - Clean Air Act Amendments of 1990
CBD - Central Business District
CDP - Census-Designated Place
CEDS - Comprehensive Economic Development Strategy
CFR - Code of Federal Regulations
CMAQ - Congestion Mitigation and Air Quality
CMP - Congestion Management Process
CMS - Congestion Management Systems
CMSA - Consolidated Metropolitan Statistical Area
COG - Council of Governments
CPI - Consumer Price Index
CPP - Countywide Planning Policy
CRA - Congestion Relief Analysis
CRAB - County Roads Administration Board
CT - Community Transit
CTED - Community, Trade, and Economic Development (Now named the Department of Commerce)
CTPP - Census Transportation Planning Products
CTR - Commute Trip Reduction
CUSPA - Center for Urban Simulation and Policy Analysis


DBE - Disadvantaged Business Enterprise
DEIS - Draft Environmental Impact Statement
DNS - Determination of Nonsignificance
DOD - Department of Defense (U.S.)
DOT - Department of Transportation (U.S.)
DRAM - Disaggregate Residential Allocation Model
DSA - Data Systems and Analysis


EA - Environmental Assessment
EAC - Enhancements Advisory Committee (WA State)
EDA - Economic Development Administration
EDC - Economic Development Council
EDD - Economic Development District
EIS - Environmental Impact Statement
EMPAL- Employment Allocation Model
EPA - Environmental Protection Agency (U.S.)
ESA - Endangered Species Act
ESD - Employment Security Department
ETP - Eastside Transportation Partnership


FAA - Federal Aviation Administration (U.S.)
FAST - Freight Action Strategy
FAST Act - Fixing America’s Surface Transportation Act
FAZ - Forecast Analysis Zone
FEIS - Final Environmental Impact Statement
FHLP - Federal Highway Lands Program
FHWA - Federal Highway Administration (U.S.)
FMSIB - Freight Mobility Strategic Investment Board
FONSI - Finding of No Significant Impact
FRA - Federal Railroad Administration (U.S.)
FTA - Federal Transit Administration (U.S.)
FY - Fiscal Year


GIS - Geographic Information Systems
GMA - Growth Management Act
GMPB - Growth Management Policy Board
GPS - Global Positioning System
GTC - Growing Transit Communities


HCT - High-Capacity Transit
HOT - High-Occupancy Toll
HOV - High-Occupancy Vehicle
HPMS - Highway Performance Monitoring System
HSS - Highways of Statewide Significance


ISTEA - Intermodal Surface Transportation Efficiency Act of 1991
ITE - Institute of Transportation Engineers
ITS - Intelligent Transportation Systems


JARC - Job Access & Reverse Commute (FTA program)




LCP - Least Cost Planning
LIDAR - LIght Distance And Ranging
LOS - Level of Service
LRT - Light Rail Transit
LTR - Local Targets Representation
LUTAC - Land Use Technical Advisory Committee


MAB - Metropolitan Area Boundary
MAP-21 - Moving Ahead for Progress in the 21st Century
MOA - Memorandum of Agreement
MOU - Memorandum of Understanding
MPO - Metropolitan Planning Organization
MPP - Multi-County Planning Policy
MRSC - Municipal Research and Services Center
MSA - Metropolitan Statistical Area
MTP - Metropolitan Transportation Plan
MTS - Metropolitan Transportation System
MVET - Motor Vehicle Excise Tax


NAAQS - National Ambient Air Quality Standards
NARC - National Association of Regional Councils
NCHRP - National Cooperative Highway Research Program
NEPA - National Environmental Policy Act
NEST - New Economic Strategy Triangle
NHS - National Highway System
NPTS - Nationwide Personal Transportation Survey


OFM - Office of Financial Management
OTM - Office of Transit Mobility (WSDOT)


PL - Public Law
PPAC - Project Progress and Accountability Committee
PSCAA - Puget Sound Clean Air Agency
PSCOG - Puget Sound Council of Governments (1975-1991)
PSEF - Puget Sound Economic Forecaster model
PSGC - Puget Sound Governmental Conference (1957-1975)
PSRC - Puget Sound Regional Council (1991- )
PSTP - Puget Sound Transportation Panel survey
PTBA - Public Transportation Benefit Area




RASP - Regional Airport System Plan
RCW - Revised Code of Washington
RES - Regional Economic Strategy
RESTAG - Regional Economic Strategy Technical Advisory Group
RFP - Request for Proposal
RFQ - Request for Qualifications
RPEC - Regional Project Evaluation Committee
ROD - Record of Decision
RSC - Regional Staff Committee
RTA - Regional Transit Authority
RTF - Regional Technical Forum
RTP - Regional Transportation Plan
RTID - Regional Transportation Investment District
RTP - Regional Transportation Plan
RTPO - Regional Transportation Planning Organization
RW or ROW - Right-of-Way


SAFETEA-LU - Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users
SCATBd - South County Area Transportation Board (King County)
SEIS - Supplemental Environmental Impact Statement
SEPA - State Environmental Policy Act
SIP - State Implementation Plan
SMSA - Standard Metropolitan Statistical Area
SOV - Single Occupant Vehicle
SRTS - Safe Routes to School
ST - Sound Transit
STEP - Sychronized Translator of Econometric Projections
STIP - State Transportation Improvement Program
STP - Surface Transportation Program


T2040 - Transportation 2040 (regional transportation plan adopted in 2010)
TAZ - Transportation Analysis Zone
TCM - Transportation Control Measures
TCRP - Transit Cooperative Research Program
TDA - Trade Development Alliance
TDM - Transportation Demand Management
TDS - Transportation Demand Strategies
TEA-21 - Transportation Equity Act for the 21st Century
TEC - Transportation Enhancements Committee
TIB - Transportation Improvement Board
TIP - Transportation Improvement Program
TMA - Transportation Management Areas
TOC - Transportation Operators Committee
TOD - Transit Oriented Development
TPB - Transportation Policy Board
TRAC - Washington State Transportation Center
TRB - Transportation Research Board
TSM - Transportation System Management
TTI - Texas Transportation Institute


UGA - Urban Growth Area
UMTA - Urban Mass Transit Administration
UPWP - Unified Planning Work Program
USC - United States Code
USDOT - United States Department of Transportation
UZA - Urbanized Area


VMT - Vehicle Miles Traveled


WAC - Washington Administrative Code
WSAC - Washington State Association of Counties
WSDOT - Washington State Department of Transportation
WSF - Washington State Ferries
WSTA - Washington State Transit Association
WTA - Washington Trucking Associations
WTP - Washington Transportation Plan