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Policy and Governmental Affairs
Office of Highway Policy Information

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Office of Highway Policy Information (OHPI) – Travel Monitoring and Traffic Volume – Traffic Monitoring Guide

Traffic Monitoring Guide

Appendix B. ACRONYMS

3S2 3-axle tractor with a 2-axle semi-trailer
AADT Annual Average Daily Traffic
AADTT Annual Average Daily Truck Traffic
AASHTO American Association of State Highway and Transportation Officials
AAWDT Annual Average Weekday Traffic
ADMS Archived Data Management System
ADT Average Daily Traffic
ADUS Archived Data User Service
APTS Advanced Public Transportation Systems
ARTS Advanced Rural Transportation Systems
ASTM American Society for Testing and Materials
ATIS Advanced Traveler Information System
ATS Average Tandem Spacing
ATMS Advanced Traffic Management System
ATR Automated Traffic Recorder
AVC Automatic Vehicle Classification
AVDT Annual Vehicle Distance Traveled
BMS Bridge Management System
CAAA Clean Air Act Amendments (1990)
CCS Continuous Count Station
CFR Code of Federal Regulations
CMS Congestion Management System
CVC Continuous Vehicle Classifier
CVO Commercial Vehicle Operations
DOT Department of Transportation
DOW Day of Week
DVDT Daily Vehicle Distance Traveled
EAL Equivalent Axle Loading
EPA Environmental Protection Agency
ESAL Equivalent Single Axle Loading
FHWA Federal Highway Administration
FIPS Federal Information Processing Standards
GIS Geographic Information System
GPS Global Positioning System
HOD Hour of Day
HPMS Highway Performance Monitoring System
IRI International Roughness Index
ISTEA Intermodal Surface Transportation Efficiency Act (1991)
ITS Intelligent Transportation System
KIPS Kilopounds (thousands of pounds)
LRS Linear Referencing System
LTBP Long Term Bridge Performance
LTPP Long Term Pavement Performance
LTTP Long-Term Transportation Plan
MADT Monthly Average Daily Traffic
MADTT Monthly Average Daily Truck Traffic
MAF Monthly Adjustment Factor
MAP-21 Moving Ahead for Progress in the 21st Century Act (2012)
MAWDT Monthly Average Weekday Daily Traffic
MAWDTT Monthly Average Weekday Daily Truck Traffic
MAWET Monthly Average Weekend Daily Traffic
MOY Month of Year
MPO Metropolitan Planning Organization
NEPA National Environmental Policy Act
NHPN National Highway Planning Network
NHS National Highway System
NIT National Institute of Technology
NPS National Park Service
OFE Other Freeways and Expressways
OPA Other Principal Arterial
PAS Principal Arterial System
PHF Peak Hour Factor
PMS Pavement Management System
PSR Present Serviceability Rating
PTR Portable Traffic Recorder
RF Radio Frequency
SADT Seasonal Average Daily Traffic
SAWA Steering Axle Weight Average
SHRP Strategic Highway Research Program
TEA21 Transportation Equity Act for the 21st Century
TMAS Travel Monitoring Analysis System
TMG Traffic Monitoring Guide
TVT Travel Volume Trends
TWS Truck Weight Study
UPACS User Profile and Access Control System
VDT Vehicle Distance Traveled
VMT Vehicle Miles Traveled
VTRIS Vehicle Travel Information System
WIM Weigh-in-Motion

Page last modified on November 7, 2014
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000