Acronym Definition
AASHT American Association of State Highway & Transportation Officials
ADT Average Daily Traffic
APBP Association of Pedestrian & Bicycle Professionals
ASRTS Active & Safe Routes to School Program
CM/AQ Congestion Mitigation & Air Quality Program
CMS Congestion Management System
CTR Commute Trip Reduction
DOT Federal Department of Transportation
ERH Emergency Ride Home
FL Freight Lanes
GRH Guaranteed Ride Home
GPL Global Price Lane
GPS Global Positioning System
HOV High Occupancy Vehicle
HOL High Occupancy Lane
HOT High Occupancy Toll Lane
H&LP Highways & Local Program
OST Office of the Secretary of Transportation
PTMS Public Transportation Management System
PBS Public Bike Systems
RRP, RRS Railway-Highway Grade Crossing
RTPO Regional Transportation Planning Organization
R/R Railroad, Railway
TCP Traffic Control Plan
TCM Transportation Control Measures
TCP Traditional Tribal Property
TDM Transportation Demand Management
TEA-21 Transportation Equity Act for the 21st Century
TIB Transportation Improvement Board
TIP Transportation Improvement Program
TMA Transportation Management Areas
TMA Transport Management Association
TMS Traffic Monitoring System
TRB Transportation Research Board
TSM Transportation System Management
TSME Transportation Systems Management Element
UI User Interface
U-Pass Universal Transit Pass
USDOT United States Department of Transportation
VMT Vehicle Miles Traveled
VPL Value Priced Lanes