| AASHTO |
American Association of State Highway and Transportation Officials |
| ACS |
adaptive control system |
| ADT |
average daily traffic |
| ADOT |
Arizona Department of Transportation |
| a.m. peak |
morning peak |
| ATC |
adaptive traffic control |
| ATSPM |
automated traffic signal performance measures |
| ATMS |
active traffic management system |
| AZ |
Arizona |
| CAV |
connected and automated vehicle |
| CCTV |
closed-circuit television |
| CHIPR |
County Highway Improvement Program Request |
| CIP |
Corridor Improvement Program |
| CMAQ |
congestion mitigation and air quality improvement |
| CMM |
capability maturity model |
| ConOps |
concept of operations |
| CPU |
central processing unit |
| CR |
crash reduction |
| CV |
connected vehicle |
| DOT |
department of transportation |
| EV |
emergency vehicle |
| FHWA |
Federal Highway Administration |
| FTE |
full-time employee |
| FYA |
flashing yellow arrow |
| GcOST |
goals, context, objectives, strategies, and tactics |
| GDOT |
Georgia Department of Transportation |
| h |
hour |
| h/wk |
hours per week |
| I–76 |
Interstate 76 |
| I–79 |
Interstate 79 |
| IDOT |
Illinois Department of Transportation |
| IL |
Illinois |
| IL–22 |
Illinois Route 22 |
| IN |
Indiana |
| INDOT |
Indiana Department of Transportation |
| IP |
internet protocol |
| IT |
information technology |
| ITE |
Institute of Transportation Engineers |
| ITS |
intelligent transportation systems |
| LCDOT |
Lake County Department of Transportation |
| LOS |
level of service |
| MAG |
Maricopa Association of Governments |
| MARK 1 |
Measurement, Accuracy, and Reliability Kit |
| MCDOT |
Maricopa County Department of Transportation |
| MOE |
measure of effectiveness |
| mi |
miles |
| mo |
month |
| NCHRP |
National Cooperative Highway Research Program |
| NPV |
net present value |
| OSADP |
Open Source Application Development Portal |
| PCD |
Purdue Coordination Diagram |
| PDO |
property damage only |
| PS&E |
plans, specifications, and estimate |
| PE |
professional engineer |
| PennDOT |
Pennsylvania Department of Transportation |
| PM |
performance measures |
| PTOE |
professional traffic operations engineer |
| PTZ |
pan, tilt, zoom |
| qtr |
quarter |
| RTOP |
Regional Traffic Operations Program |
| RTSO |
Regional Traffic Signals Program |
| RFP |
request for proposal |
| ROW |
right of way |
| SBIR |
small business innovation research |
| SCAT |
signal coordination and timing |
| sec/h |
seconds per hour |
| sec/veh |
seconds per vehicle |
| SPat |
signal phasing and timing |
| SR 37 |
State Road 37 |
| STIC |
State Transportation Innovation Council |
| STORM |
Statewide Traffic Operations and Response Management |
| mi2 |
square miles |
| TMC |
traffic management center |
| TOD |
time of day |
| TSMP |
traffic signal management plan |
| TT |
travel time |
| UDOT |
Utah Department of Transportation |
| US |
United States |
| US 421 |
US Route 421 |
| veh |
vehicle |
| veh/day |
vehicles per day |
| VM |
virtual machine |
| WA |
Washington |
| WSDOT |
Washington Department of Transportation |
| WisDOT |
Wisconsin Department of Transportation |
| wk |
week |
| wk/yr |
week per year |
| yr |
year |
