| AADT |
annual average daily traffic |
| ABS |
antilock braking system |
| ALPR |
automatic license plate recognition |
| ATDM |
active transportation and demand management |
| ATMS |
advanced transportation management system |
| AVL |
automated vehicle location |
| ADOT |
Arizona Department of Transportation |
| CAD |
computer-aided dispatch |
| CCTV |
closed circuit television |
| CDTC |
Capital District Transportation Committee |
| CHART |
Coordinated Highways Action Response Team |
| CMP |
congestion management process |
| DMS |
dynamic message sign |
| DOT |
department of transportation |
| DVRPC |
Delaware Valley Regional Planning Commission |
| FAST |
Fixing America's Surface Transportation |
| FDOT |
Florida Department of Transportation |
| FFS |
free flow speed |
| FHWA |
Federal Highway Administration |
| FMS |
freeway management system |
| GDOT |
Georgia Department of Transportation |
| GPS |
Global Positioning System |
| HAR |
highway advisory radio |
| HCM |
Highway Capacity Manual |
| HPMS |
Highway Performance Management System |
| HOV |
high-occupancy vehicle |
| I-TMS |
Internet-Traffic Monitoring System |
| ICM |
integrated corridor management |
| iPEMS |
Iteris Performance Measurement System |
| IT |
information technology |
| ITS |
intelligent transportation systems |
| LRTP |
long-range transportation plan |
| MAG |
Maricopa Association of Governments |
| MATOC |
Metropolitan Area Transportation Operations Coordination |
| MIST |
Management Information System for Transportation |
| MPH |
miles per hour |
| MPO |
metropolitan planning organization |
| MSTM |
Maryland Statewide Transportation Model |
| MWCOG |
Metropolitan Washington Council of Governments |
| NHS |
National Highway System |
| NJDOT |
New Jersey Department of Transportation |
| NPMRDS |
National Performance Measures Research Data Set |
| O-D |
origin-destination |
| ODOT |
Oregon Department of Transportation |
| PCPHPL |
passenger cars per hour per lane |
| PeMS |
Performance Measurement System |
| PHV |
peak-hour volumes |
| POMT |
Port of Miami Tunnel |
| PORTAL |
Portland Oregon Regional Transportation Archive Listing |
| PSU |
Portland State University |
| PTI |
planning time index |
| QC |
quality control |
| RFP |
request for proposal |
| RITIS |
Regional Integrated Transportation Information Systems |
| ROI |
return on investment |
| RTMS |
remote traffic microwave sensors |
| RWIS |
road weather information systems |
| SHA |
State Highway Administration |
| SHRP 2 |
Strategic Highway Research Program 2 |
| TDF |
travel demand forecasting |
| TMC |
transportation management center |
| TTI |
travel time index |
| UMD |
University of Maryland |
| VMT |
vehicle-miles of travel |
| VPP |
Vehicle Probe Project |
| WSDOT |
Washington State Department of Transportation |
