Acronyms/Abbreviations

The guide below was developed to help decode the numerous acronyms and abbreviations associated with transportation and transportation planning and programs.

AADT
Average Annual Daily Traffic

AASHTO
American Association of State & Highway Transportation Officials

ACP
Asphalt Concrete Pavement

ADA
Americans with Disabilities Act

ADT
Average Daily Traffic

A/I, AI
Arc Info; Artificial Intelligence

APTA
American Public Transit Association

APTS
Advanced Public Transportation System

AQIP
Air Quality Implementation Program

ASM
Acceleration Simulation Mode

ATIS
Advanced Traveler Information System

ATMS
Advanced Traffic Management Systems

AVI
Automated Vehicle Identification System

AVL
Automatic Vehicle Location

AWDT
Average Weekday Traffic

BAB
Bicycle Advisory Board

BACT
Best Available Control Technology

BACM
Best Available Control Measure

BNIP
Bridge Needs Improvement Process

BRF
Bridge Replacement Funds

BRM
Bridge Replacement Metropolitan Areas

BRP
Bridge Replacement on the Primary System (Old Program)

BRS
Bridge Replacement of the Secondary System

BST
Bituminous Surface Treatment

CAA
Clean Air Act of 1970

CAAA
Clean Air Act Amendments of 1990

CAL3QHC
Air Quality Modeling Software for Intersection Analysis

CAL3QHCR
Updated Version of CAL3QHC

CAP
Clean Air Program

CAPP
County Arterial Preservation Program

CAW
Clean Air Washington Act

CB
Census Block

CBD
Central Business District

CDBG
Community Development Block Grant

CDF
Community Development Funds

CMAQ
Congestion Mitigation / Air Quality (ISTEA Funding)

CMS
Congestion Management System (ISTEA Program)

CMS
Concurrency Management System (GMA requirement)

CMSA
Consolidated Metropolitan Statistical Area

CO
Carbon Monoxide

COG
Council of Governments

CRAB
County Road Administration Board

CT
Census Tract

CTPP
Census Transportation Planning Package

CTR
Commute Trip Reduction

DNS
Determination of Non-Significance

DOE
Department of Energy (U.S.) or Department of Ecology (State)

DOT
Department of Transportation (U.S. or State)

DU
Dwelling Unit

DUA
Dwelling Units per Acre

DVMT
Daily Vehicle Miles of Travel

ED
Enumeration District

EDC
Economic Development Council

E&D
Elderly and Disabled

EIS
Environmental Impact Statement

EJ
Environmental Justice

EPA
Environmental Protection Agency

FA
Federal-aid

FAI
Federal Aid Interstate

FAP
Federal Aid Primary

FAM
Federal Aid Municipal

FAME
Freeway and Arterial Management Effort

FAS
Federal Aid Secondary

FAU
Federal Aid Urban

FFY
Federal Fiscal Year

FGTS
Freight and Goods Transportation System

FHWA
Federal Highway Administration

FIRE
Fire, Insurance, Real Estate

FTA
Federal Transit Administration

GBF/DIME
Geographic Base File / Dual Independent Map Encoding (pre 1990)

GCPF
Grade Crossing Protection Fund

GIS
Geographic Information System

GMA
Growth Management Act

HAR
Highway Advisory Radio

HAVS
Health Activity Volunteer Services

HC
Hydrocarbons

HCM
Highway Capacity Manual

HCS
Highway Capacity Software

HCT
High Capacity Transit

HCTS
High Capacity Transportation Study

HERS
Highway Economic Requirements System

HES
Hazard Elimination Safety

HOV
High Occupancy Vehicle

HPMS
Highway Performance Monitoring Systems

HTF
Highway Trust Fund

HU
Housing Unit

HVAC
Heating, Ventilating & Air Conditioning

I-90
Interstate Route 90

I/C
Interchange

ID Team
Interdisciplinary Team

ITD
Idaho Transportation Department

IMS
Intermodal Management System

ISTEA
Intermodal Surface Transportation Efficiency Act of 1991

ITE
Institute of Transportation Engineers

ITS
Intelligent Transportation Systems

IVHS
Intelligent Vehicle Highway System

JIT
Just-in-Time delivery systems

KMPO
Kootenai Metropolitan Planning Organization

LHSIP
Local Highway Safety Improvement Program

LHTAC
Local Highway Technical Assistance Council

LID
Local Improvement District

LOS
Level of Service

LRHIP
Local Rural Highway Investment Program

LRP
Long Range Plan

LRT
Light Rail Transit

LU
Land Use

MAB
Metropolitan Area Boundary

MDE
Measure of Effectiveness

MDNS
Mitigated Determination of Non-Significance

MFDU
Multi-Family Dwelling Unit

MIA
Major Investment Analysis

MIS
Major Investment Study

MOBILE5b
Regional Air Quality Modeling Software (For Emissions Analysis)

MOBILE6
Regional Air Quality Modeling Software (For Emissions Analysis)

MOP
Measure of Performance

MP
Mile Post

MPA
Metropolitan Planning Area

MPO
Metropolitan Planning Organization

MSA
Metropolitan Statistical Area

MTP
Metropolitan Transportation Plan

MVT
Motor Vehicle Trips

NAA
Nonattainment Area

NAICS
North American Industrial Classification System

NAAQS
National Ambient Air Quality Standards

NBI
National Bridge Inventory

NBIS
National Bridge Inspection Standards

NCHRP
National Cooperative Highway Research Program

NEPA
National Environmental Policy Act

NHS
National Highway System

NOx
Nitrogen Oxide Pollutants

NTI
National Transit Institute

Oz
Ozone

OA
Obligation Authority

O-D
Origin-Destination (Survey or Zone)

P&A
Production and Attraction

PCCP
Portland Cement Concrete Pavement

PE
Preliminary Engineering

PLSS
Public Land Survey System

PM-2.5
Particulate Matter – 2.5 Microns in size and less

PM-10
Particulate Matter-10 Microns

PMS
Pavement Management System (ISTEA)

PPD
Pounds Per Day  

PPM
Parts Per Million

PSR
Pavement Serviceability Rating

PS&E
Plans, Specifications and Estimates

PTBA
Public Transportation Benefit Area

PTMS
Public Transportation Management System

PTSA
Public Transportation Systems Account

PUD
Planned Unit Development

PUMS
Public User Microdata System

PWTF
Public Works Trust Fund (Funding Program)

RACM
Reasonable Available Control Measures

RACT
Reasonable Available Control Technology

RAP
Rural Arterial Program

RCW
Regional Councils of Washington

RFP
Requests for Proposals

RFP
Reasonable Further Progress

RID
Road Improvement District

ROW
Right of Way

RRP
Railroad Protection Fund

RRS
Railroad Safety

RTA
Regional Transportation Authority

RTP
Regional Transportation Project

S9
System 9 (GIS Software)

SCA
Small City Account

SEE
Social, Economic, and Environmental (Effects)

SFDU
Single Family Dwelling Unit

SIC
Standard Industrial Classification

SIP
State Implementation Plan (For Air Quality)

SMSA
Standard Metropolitan Statistical Area

SO2
Sulfur Dioxide

SOV
Single Occupancy Vehicle

SR
State Route

SRTC
Spokane Regional Transportation Council

STA
Spokane Transit Authority

STEP
Service in Transportation Enhancement Project

STF
Summary Tape File (Census Bureau Data Classification)

STIP
Statewide Transportation Improvement Program

STP
Surface Transportation Program (Funding through ISTEA)

STRAHNET
Strategic Highway Network

SVA
South Valley Arterial

Synchro
Intersection Capacity Analysis Computer Model

TAZ
Transportation Analysis Zone

TBD
Transportation Benefit District

TC
Transportation Community

TCM
Transportation Control Measure

TCP
Transportation Control Plan

TDM
Transportation Demand Management

TDP
Transit Development Plan

TEA-21
Transportation Equity Act for the 21st Century

TIA
Transportation Improvement Account

TIB
Transportation Improvement Board

TIGER
Topological Integrated Geographic Encoding & Referencing (1990)

TIP
Transportation Improvement Program

TMA
Transportation Management Area

TMA
Transportation Management Association

TMC
Transportation Management Center

TMODEL2
Travel Demand Computer Simulation Model

TMP
Transit Monitoring Program

TMS
Traffic Management System

TPY
Tons Per Year

TRAC
Washington State Transportation Center

TRB
Transportation Research Board

TSC
Transportation Steering Committee

TSM
Transportation System Management

TSP
Total Suspended Particulates

TTC
Transportation Technical Committee

UAB
Urban Arterial Board

UAB
Urban Area Boundary

UATA
Urban Arterial Trust Account

UGA
Urban Growth Area

UGB
Urban Growth Boundary

UIA
Urban Impact Area

UMTA
Urban Mass Transportation Administration (Now FTA)

UPWP
Unified Planning Work Program

URISA
Urban & Regional Information Systems Association

USDOE
United States Department of Ecology

USDOT
United States Department of Transportation

UZA
Urbanized Area

V/C
Volume to Capacity Ratio

VE
Value Engineering

VHT
Vehicle Hours of Travel

VISSIM
Visualization & Corridor Model

VISUM
Travel Demand Model

VMT
Vehicle Miles Traveled

VPH
Vehicles Per Hour

WAC
Washington Administrative Code

WACO
Washington Association of County Officials

WSDOE
Washington State Department of Ecology

WSDOT
Washington State Department of Transportation

WSEO
Washington State Energy Office

WSTC
Washington State Transportation Commission

WTPI
Washington Transportation Policy Institute

WWW
Worldwide Web (Internet)