Hampton Roads Transportation Planning OrganizationHRTPO
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The following is a list of acronyms for your reference commonly used throughout HRTPO documentation and this website:

ADA - Americans with Disabilities Act of 1990
AQ - Air Quality
AM - Morning
APM - A. P. Moeller - Maersk Group (freight shipping company)
ARRA - American Recovery and Reinvestment Act of 2009
ATI - Air Terminal Interchange
Ave - Avenue

Blvd - Boulevard

°C - Celsius
CA - California
CBBT - Chesapeake Bay Bridge Tunnel
CCI - Critical Condition Index
CFI - Continuous Flow Interchange
CFR - United States Code of Federal Regulations
CH (CHE) - City of Chesapeake
CIC - Craney Island Connector
CIKR - Critical Infrastructure and Key Resources
CL - City/County Line
CMAQ - Congestion Mitigation and Air Quality [Funding Program]
CMP - Congestion Management Process
CO - Carbon Monoxide
CO2 - Carbon Dioxide
COA - Comprehensive Operational Analysis
CSX - CSX Transportation Incorporated (Class I freight rail company)
CAC - Community Transportation Advisory Committee
CTB - Commonwealth Transportation Board

D.C. - District of Columbia
DMV - Virginia Department of Motor Vehicles
DoD - Department of Defense
Dr - Drive
DRPT - Virginia Department of Rail and Public Transportation
DSF - Dedicated and Statewide Funds

EA - Environmental Assessment
EB - Eastbound
EIS - Environmental Impact Statement
EJ - Environmental Justice
E-W - East-West
EPA - United States Environmental Protection Agency

FAF-3 - Freight Analysis Framework 3
FHWA - Federal Highway Administration
FONSI - Finding of No Significant Impact
FRA - Federal Railroad Administration
Ft - Fort
FTA - Federal Transit Administration
FTAC - Freight Transportation Advisory Committee
FY - Fiscal Year

GHG - Greenhouse Gases
GIS - Geographic Information Systems
GW - George Washington [Memorial Highway]

HC - Hydrocarbons
HHS - United States Department of Health and Human Services
HM - City of Hampton
HMOF - Highway Maintenance and Operating Fund
HOV - High Occupancy Vehicle Lane
HPMS - Highway Performance Monitoring System
HRBT - Hampton Roads Bridge-Tunnel
HRHIM - Hampton Roads Highway Incident Management Subcommittee
HRPDC - Hampton Roads Planning District Commission
HRT - Hampton Roads Transit [See TDCHR]
HRTAC - Hampton Roads Transportation Accountability Commission 
HRTO - Hampton Roads Transportation Operations Subcommittee
HRTPO - Hampton Roads Transportation Planning Organization
HSIP - Highway Safety Improvement Program
HSIPR - High-Speed and Intercity Passenger Rail
HTF - Highway Trust Fund (Federal)

Hwy - Highway

I-(#) - Interstate-(Number)
ICG - Interagency Consultation Group
IMS - Intermodal Management System
Int - Intersection
Intchg - Interchange
IRI - International Roughness Index
ITS - Intelligent Transportation Systems

JFCOM - United States Joint Forces Command
JRB - James River Bridge

KHA - Kimley Horn and Associates

LEP - Limited English Proficiency
Ln - Lane
LOS - Level of Service
LPO - Lead Planning Organization
LRTP - Long-Range Transportation Plan

MAX - HRT's Metro Area Express Bus Service
MLK - Martin Luther King Freeway
MMMBT - Monitor Merrimac Memorial Bridge Tunnel
Mph - Miles per hour
MPO - Metropolitan Planning Organization
MSA - Metropolitan Statistical Area
Multi - Multi-jurisdictional

N/A - Not applicable
NAAQS - National Ambient Air Quality Standards
NASA - National Aeronautics and Space Administration
NC - North Carolina
NEPA - National Environmental Policy Act
NHS - National Highway System
NHTS - National Household Travel Survey
NIPP - National Infrastructure Protection Plan
NIT - Norfolk International Terminal
NN - City of Newport News
NOx - Nitrogen Oxides
NO2 - Nitrogen Dioxide
NOR - City of Norfolk
NPS - National Park Service
NS - Norfolk Southern Corporation (Class I freight rail company)
NTD - National Transit Database

PE - Preliminary Engineering
Pkwy - Parkway
PM - Afternoon
PMx - Ozone Particulate Matter
PNHMP - Peninsula Natural Hazard Mitigation Plan
POQ - City of Poquoson
POR - City of Portsmouth
PPP - Public Participation Plan
PPTA - Public-Private Transportation Act of 1995

RCTO - Hampton Roads Regional Concept of Transportation Operations
Rd - Road
RLRP - Hampton Roads Rural Long Range Transportation Plan
ROD - Record of Decision
ROW - Right of Way
RPM - Regional Performance Measures
RR - Railroad
RSA - Road Safety Audit
RSTP - Regional Surface Transportation Program[Funding Program]
Rte - Route

SAFETEA-LU - Safe, Accountable, Flexible, Efficient, Transportation Equity Act: A Legacy for Users
SHRHMP - South Hampton Roads Hazard Mitigation Plan
SIP - State Implementation Plan
SO2 - Sulfur Dioxide
SOV - Single Occupancy Vehicle
STRACNET - Strategic Rail Corridor Network
STRAHNET - Strategic Highway Network
SRTS - Safe Routes to School
SSEPP - System Security and Emergency Preparedness Plan
St - Street
SU (SUF) - City of Suffolk
SYIP - Commonwealth Transportation Board Six Year Improvement Program
SYOIP - Commonwealth Transportation Board Six Year Operational Implementation Plan

TAC - Technical Advisory Committee
TAZ - Traffic Analysis Zone
TCM - Transportation Control Measure
TDCHR - Transportation District Commission of Hampton Roads [See HRT]
TDM - Transportation Demand Management
TDP - Transit Development Plan
TEU - Twenty-foot equivalent unit (standard cargo container)
TIGER - Transportation Investment Generating Economic Recovery
TIP - Transportation Improvement Program
TMA - Transportation Management Areas
TOC - Transportation Operations Center
TOS - TRAFFIX Oversight Committee
Tpke - Turnpike
TPS - Transportation Programming Subcommittee
Tr - Trail
TRIP - The Road Information Program
TTAC - Transportation Technical Advisory Committee
TTF - Transportation Trust Fund (Virginia)
TVP - Hampton Roads Regional Transit Vision Plan

UPWP - Unified Planning Work Program
USACE - United States Army Corps of Engineers
USDA - United States Department of Agriculture
USDHS - United States Department of Homeland Security
USDOT - United States Department of Transportation
USEPA - United States Environmental Protection Agency
USFWS - United States Fish and Wildlife Service
USGS - United States Geological Survey

VA - Commonwealth of Virginia [Virginia]
VAHS - Virginia Department of Veteran Affairs and Homeland Security
VB - City of Virginia Beach
VBTES - Virginia Beach Transit Extension Study
VCC - Virginia Clean Cities
VCI - Virginia Council of Indians
VDCR - Virginia Department of Conservation and Recreation
VDEM - Virginia Department of Emergency Management
VDEQ - Virginia Department of Environmental Quality
VDGIF - Virginia Department of Game and Inland Fisheries
VDHR - Virginia Department of Historic Resources
VDOA - Virginia Department of Aviation
VDOF - Virginia Department of Forestry
VDOT - Virginia Department of Transportation
VMRC - Virginia Marine Resources Commission
VMT - Vehicle Miles Traveled
VOC - Ozone
VPA - Virginia Port Authority
VSHSP - Virginia Strategic Highway Safety Plan
VTRANS - 2035 Commonwealth of Virginia Long Range Transportation Plan

WATA - Williamsburg Area Transit Authority
WB - Westbound

YOE - Year of Expenditure