Acronym | Meaning |
---|---|
3R | Restoration, Rehabilitation, and Resurfacing |
4R | 3R plus Reconstruction |
AAA | American Automobile Association |
AADL | Annual Average Daily Loading |
AADT | Annual ADT |
AADTT | Annual ADTT |
AADW | Annual Average Days of the Week |
AAMA | American Automobile Manufacturers Association |
AAMVA | American Association of Motor Vehicle Administrators |
AAPA | American Association of Port Authorities |
AAR | Association of American Railroads |
AASHO | Former name of AASHTO |
AASHTO | American Association of State Highway and Transportation Officials |
AAWDT | Annual Average Weekday Traffic |
ABA | American Bus Association |
ABS | Antilock Braking System |
AC | Asphalt Concrete |
ACC | Adaptive Cruise Control |
ACEC | American Consulting Engineers Council |
ACI | Automatic Cargo Identification |
ACI | American Concrete Institute |
ACPA | American Concrete Pavement Association |
ACS | Automatic Clearance Sensing |
ADI | Automatic Driver Identification |
ADIS | Advanced Driver Information Systems |
ADL | Average Daily Load |
ADT | Average Daily Traffic (vpd in both directions) |
ADTT | Average Daily Truck Traffic |
AEA | American Electronics Association |
AEI | Automated Equipment Identification |
AFV | Alternative Fuel Vehicle |
AGC | Associated General Contractors |
AHAR | Automatic Highway Advisory Radio |
AHS | Average Highway Speed |
AHS | Automated Highway System |
ALAPCO | Association of Local Air Pollution Control Officials |
ALF | Accelerated Loading Facility |
AMFA | Alternative Motor Fuels Act (1988) |
AMPO | Association of Metropolitan Planning Organizations |
AMRL | AASHTO Materials Reference Lab |
ANPRM | Advanced Notice of Proposed Rulemaking |
ANSI | American National Standards Institute |
APC | Automated Passenger Counting |
APCA | American Portland Cement Alliance |
APTA | American Public Transit Association |
APTS | Advanced Public Transportation Systems |
APWA | American Public Works Association |
AQ | Any Quantity |
ARAN | Automatic Road Analyzer |
ART | Applied Research and Technology |
ARTBA | American Road and Transportation Builders Association |
ASCE | American Society of Civil Engineers |
ASTM | American Society for Testing and Materials |
ATA | American Trucking Associations, Inc. |
ATC | Automated Toll Collection |
ATIS | Advanced Traveler Information Systems |
ATMS | Advanced Traffic Management Systems |
ATR | Automated Traffic Recorder |
ATS | American Travel Survey (BTS/Census) |
ATSAC | Automated Traffic Surveillance and Control System (LA) |
ATSSA | American Traffic Safety Services Association |
AVC | Automatic Vehicle Classification |
AVCG | Advanced Vehicle Control/Guidance |
AVCI | Automatic Vehicle and Cargo Identification |
AVCS | Advanced Vehicle Control Systems |
AVI | Automatic Vehicle Identification |
AVL | Automatic Vehicle Location |
AVLS | Automatic Vehicle Location System |
AVM | Automatic Vehicle Monitoring |
AVMT | Annual VMT |
AVO | Average Vehicle Occupancy |
AVR | Average Vehicle Ridership |
AVW | Automatic Vehicle Weighing |
BAMS | Bid Analysis Management System |
BLCR | Bridge Load Capacity Rating |
BMCS | Bureau of Motor Carrier Safety |
BMS | Bridge Management System |
BPR | Bureau of Public Roads |
BWIM | Bridge WIM |
C/M | Climate/Materials |
CA | Cooperative Agreement |
CAA | Clean Air Act |
CAD | Computer-Aided Dispatching |
CADD | Computer Aided Drafting and Design |
CADRE | Critical Automated Data Reporting Elements (NHTSA) |
CAFE | Corporate Average Fuel Efficiency |
CAO | Chief Administrative Officer |
CARB | California Air Resources Board |
CARD | Crash Avoidance Research Data (NHTSA) |
CBD | Central Business District |
CCD | Charge-Coupled Device (optical-electrical sensor) |
CCIR | International Consultative Committee for Radio |
CCT | Computer Compatible Tape |
CDL | Commercial Driver's License |
CDO | Crescent Demonstration Operator |
CDP | Census Designated Place |
CERF | Civil Engineering Research Foundation (ASCE) |
CERL | Construction Engineering Research Laboratory (COE) |
CFC | Chlorofluorocarbon |
CFS | Commodity Flow Survey (= CTS) |
CG | Coordinating Group |
CHRIS | Chemical Hazard Response Information System |
CIE | Commission International de l'Eclairage |
CIH | Compensated Intercorporate Hauling |
CIM | Classification-in-motion |
CIMA | Construction Industry Manufacturers Association |
CL | Carload |
CLC | Concentrated Load Capacity |
CLF | Conservation Law Foundation |
CMAQ | Congestion Mitigation and Air Quality |
CMP | Congestion Management Program |
CMS | Changeable Message Sign |
CMS | Congestion Management System |
CMV | Commercial Motor Vehicle |
CNG | Compressed Natural Gas |
CNTS | Center for National Truck Statistics (UMTRI) |
CO | Carbon Monoxide |
COE | Corps of Engineers (U.S. Army) |
COFC | Container-on-flatcar |
COG | Council of Government |
COTS | Commercial Off-the-Shelf |
CP | Cathodic Protection |
CRASH | Citizens for Reliable and Safe Highways |
CRC | Continuously Reinforced Concrete |
CSO | Council of Standards Organizations |
CTIPS | Comprehensive Transportation Information and Planning System |
CTPP | Census Transportation Planning Package |
CTS | Commodity Transportation Survey |
CUTC | Council of University Transportation Centers |
CVIS | Commercial Vehicle Information System |
CVO | Commercial Vehicle Operations |
CVSA | Commercial Vehicle Safety Alliance |
CWIM | Continuous WIM |
D | Depth (slab thickness) |
D-factor | Peak directional volume (as percent DHV) |
DDHV | Directional DHV, vph |
DEAL | Design Equivalent Axle Load |
DESAL | Design Equivalent Single Axle Load |
DHTM | Design Hour Turning Movements |
DHV | Design Hour Volume = K * ADT (usually 30th highest hour) |
DIM | Dimension In Motion |
DIME | Dual Incidence Matrix Encoded files (like TIGER but 1980) |
DIN | Deutsches Institut fur Normung |
DL | Driver Licensing |
DOR | Department of Roads |
DRGS | Dynamic Route Guidance System |
DRP | Data Review Package |
DVKT | Daily Vehicle-Kilometers of Travel |
DVMT | Daily VMT |
EAL | Equivalent Axle Load(ing) |
EBL | Electronic Bill of Lading (or placarding) |
EDS | Electronic Data Sharing |
EF | ESAL Factor |
EIA | Environmental Impact Assessment |
EIA | Energy Information Administration |
EIA | Electronic Industries Association |
EIS | Emergency Information System |
ELP | Electronic License Plate |
EMS | Equipment Management System |
EPACT | National Energy Policy Act: (1992) |
ERG | Emergency Response Guidebook |
ESAL | Equivalent Single-Axle Load |
ETA | Expected Time of Arrival |
ETC | Environmental Training Center |
ETC | Electronic Toll Collection |
ETG | Expert Task Group |
ETTM | Electronic Toll and Traffic Management |
EV | Electric Vehicle |
EWL | Equivalent Wheel Load |
F&PB | Family and Personal Business travel |
FAI | Federal Aid Interstate |
FAP | Federal-Aid Primary |
FARS | Fatal Accident Reporting System (NHTSA) |
FAS | Federal-Aid Secondary |
FAUA | Federal-Aid Urbanized Area |
FEBBS | FMWA Electronic Bulletin Board System |
FELIC | Federation of Engineering institute |
FET | Federal Excise Tax |
FFY | Federal Fiscal Year |
FHMR | Federal Hazardous Materials Regulations |
FHWA | Federal Highway Administration |
FIP | Federal Implementation Plan |
FMC | Fleet Management and Control |
FMC | Federal Maritime Commission |
FMCSR | Federal Motor Carrier Safety Regulations |
FMIS | Fiscal Management Information System |
FMVCP | Federal Motor Vehicle Control Program |
FOIL | Federal Outdoor Impact Laboratory |
FRA | Federal Railroad Administration |
FTA | Federal Transit Administration (formerly UMTA) |
FTP | Federal Test Procedure (EPA mpg) |
FUT | Fuel Use Tax |
FWD | Falling Weight Deflectometer |
GCP | Ground Control Point |
GCW | Gross Combination Weight |
GES | General Estimates System (NHTSA) |
GIS | Geographic Information System |
GLCTTR | Great Lakes Center of Truck Transportation Research |
GOE | General Operating Expenses |
GPS | General Pavement Studies/Sections |
GPS | Global Positioning System |
GRF | Grants for Research Fellowships |
GRIDS | Geographical Roadway Information Display System |
GRS | Grid Reference System |
GVW | Gross Vehicle Weight |
GVWR | GVW Rating (max weight) |
HAR | Highway Advisory Radio |
HC | Hydrocarbons |
HCAADT | Heavy Commercial AADT |
HCAS | Highway Cost Allocation Study |
HCM | Highway Capacity Manual (TRB) |
HD | Headway Detection |
HEEP | Highway Engineering Exchange Program |
HELP | Heavy vehicle Electronic License Plate (Crescent) |
HERS | Highway Economic Requirements System |
HETP | Highway Engineer Training Program |
HF | Highway Finance |
HGV | Heavy Goods Vehicle |
HH | Household |
HIAP | Highway Investment Analysis Package |
HITEC | Highway Innovative Technology Evaluation Center |
HM | Hazardous Materials |
HMR | Hazardous Materials Regulation |
HNDES | Highway Network Design and Evaluation System |
HOV | High Occupancy Vehicle |
HP&R | Highway Planning and Research |
HPA | High Priority Area |
HPMS | Highway Performance Monitoring System |
HPNPA | High Priority National Program Area |
HPR | Highway Planning and Research |
HRV | High Resolution Visible |
HSIRS | Highway Statistics Information Retrieval System |
HSIS | Highway Safety Information System |
HSP | High Speed Photographs |
HSWIM | High Speed WIM |
HTF | Highway Trust Fund |
HTFS | Highway Traffic Forecasting System |
HTIMS | Highway Technology Information Management System |
HUD | Head-Up Display |
HUF | Highway Users Federation |
HUFSAM | HUF for Safety and Mobility |
HV | Heavy Vehicle |
HVM | Heavy Vehicle Management |
HVUT | Heavy Vehicle Use Tax |
HYSIM | Highway (Driver) Simulator |
I | Interstate |
I&M | Inspection and Maintenance |
IAG | Interagency Agreement |
IANA | Intermodal Association of North America |
IBTTA | International Bridge, Tunnel and Turnpike Association |
ICC | Interstate Commerce Commission |
ICMP | Interagency Committee on Metric Policy |
IDEA | Innovations Deserving Exploratory Analysis |
IEEE | Institute of Electrical and Electronics Engineers, Inc. |
IFME | International Federation of Municipal Engineers |
IFTA | International Fuel Tax Agreement |
IHSD | Interactive Highway Safety Design |
IIHS | Insurance Institute for Highway Safety |
ILD | Induction Loop Detector |
IMC | Interstate Motor Carrier |
IMS | Information Management System (SHRP: = NPDB) |
IMS | Intermodal Management System |
IPWF | International Public Works Federation |
IRF | International Road Federation |
IRI | International Roughness Index |
IRP | International Registration Plan |
IRTE | Integrated Road Transport: Environment |
IS | Interstate System |
ISCTA | Intermodal Safe Container Transportation Act (1992) |
ISO | International Standards Organization |
ISTEA | Intermodal Surface Transportation Efficiency Act |
ISWIM | Intermediate Speed WIM |
ITE | Institute of Transportation Engineers |
ITM | Information Technology Manager (GSA) |
ITS | Institute of Transportation Studies (UCB) Intelligent Transportation System |
ITSP | International Technology Scanning Program |
IUPT | International Union of Public Transport |
IVHS | Intelligent Vehicle-Highway System |
IVS | In-Vehicle Signing |
JIT | Just-In-Time |
K-factor | Peak-hour volume (e.g., DEV / ADT) |
KIP (S) | Kilopound(s) |
KMPT | Kilometerpoint |
KRA | Kingpin-to-rear axle |
L&D | Loss and Damage |
LCCA | Life Cycle Cost Analysis |
LCL | Less-than-carload |
LCS | Lane Control Signal |
LCV | Larger/Longer Combination Vehicle |
LDP | Level of Development Plan |
LDVS | Larger Dimensioned Vehicle Study |
LEF | Load Equivalency Factor |
LMS | Location and Monitoring Service |
LOS | Level of Service |
LPG | Liquefied Petroleum Gas |
LRFD | Load and Resistance Factor Design |
LRT | Light Rail Transit |
LSF | Load Safety Factor |
LSWIM | Low Speed WIM (< 10 mph) |
LT | Left Turn |
LTAP | Local Technical Assistance Program (was RTAP) |
LTL | Less Than Truckload |
LTPP | Long-Term Pavement Performance (SHRP) |
M85 | Methanol 85%, gasoline 15% |
MA | Minor Arterial |
MADT | Monthly ADT |
MADW | Monthly Average Days of the Week |
MAWDT | Monthly Average Weekday Traffic |
MAWET | Monthly Average Weekend Traffic |
MCARS | Motor Carrier Accident Reporting System |
MCMIS | Motor Carrier MIS |
MCR | Monthly Classification Ratio |
MCREGIS | Motor Carrier Regulations Information System |
MCSAP | Motor Carrier Safety Assistance Program |
MDD | Multi-Depth Deflectometers |
MFRS | Mileage Facilities Reporting System |
MIT | Mobile Inspection Trailer |
ML | Mainline |
MMS | Maintenance Management System |
MOE | Measure of Effectiveness |
MOV | Multiple-Occupant Vehicle |
MPO | Metropolitan Planning Organization |
MRM | Mileage Reference Marker |
MSF | Maximum Service Flow rate, pcphpl |
MTC | Metropolitan Transportation Commission |
MTC | Minimum Tolerable Conditions |
MTMC | Military Traffic Management Command |
MTR | Monthly Traffic Ratio |
MTT | Multi-Trailer Truck |
MUD | Multi-Use Development |
MUTCD | Manual on Uniform Traffic Control Devices |
MV | Motor Vehicles |
MVM | Million Vehicle Miles |
MVMA | Motor Vehicle Manufacturers Association |
MWR | Monthly Weight Ratio |
MY | Model Year |
NAAQNA | National Ambient Air Quality Nonattainment Area |
NAAQS | National Ambient Air Quality Standards |
NACE | National Association of County Engineers |
NACO | National Association of County Officials |
NAE | National Academy of Engineering |
NAGHSR | National Association of Governors' Highway Safety Representatives |
NAPA | National Asphalt Pavement Association |
NAPCOM | National Pavement Cost Model |
NARC | National Association of Regional Councils |
NAS | National Academy of Sciences |
NASS | National Accident Sampling System |
NATS | North American Trucking Survey (AAR) |
NBI | National Bridge Inventory |
NC-UTCD | National Committee on Uniform Traffic Control Devices |
NCAP | New Car Assessment Program (NHTSA) |
NCEER | National Center for Earthquake Engineering Research |
NCHRP | National Cooperative Highway Research Program |
NCP | Nationally Coordinated Program (of highway RD&T) |
NCSA | National Center for Statistics and Analysis (NHTSA) |
NCSL | National Conference of State Legislatures |
NCUTLO | National Committee on Uniform Traffic Laws and Ordinances |
NCWM | National Conference on Weights and Measures |
NDR | National Drivers Register |
NDT | Non-Destructive Testing |
NEMA | National Electrical Manufacturers Association |
NEPA | National Environmental Policy Act (1969) |
NGA | National Governors' Association |
NGRS | National Geodetic Reference System |
NGV | Natural Gas Vehicle |
NHI | National Highway Institute |
NHIPS | National Highway Inventory and Performance Study |
NHPN | National Highway Planning Network |
NHS | National Highway System |
NHTSA | National Highway Traffic Safety Administration |
NIMC | National Incident Management Coalition |
NIMS | National Information Management System (SHRP = NPDB) |
NITL | National Industrial Transportation League |
NITS | National Intercity/Intercounty Travel Survey |
NLC | National League of Cities |
NMCAC | National Motor Carrier Advisory Committee |
NMT | Nonmotorized Transport |
NOx | Nitrogen Oxides |
NPDB | National Pavement Data Base (SHRP) |
NPRM | Notice of Proposed Rulemaking |
NPTC | National Private Truck Council |
NPTS | Nationwide Personal Transportation Study |
NQI | National Quality Initiative |
NRC | National Research Council |
NSC | National Safety Council |
NSDI | National Spatial Data Infrastructure |
NSMA | National Scale Manufacturers Association |
NSPE | National Society of Professional Engineers |
NTACS | Nationwide Truck Activity and Commodity Survey |
NTDB | National Traffic Data Base (SHRP) |
NTIA | National Telecommunications and Information Administration |
NTIS | National Technical Information Service |
NTP | National Transportation Policy |
NTS | National Travel Survey |
NTSB | National Transportation Safety Board |
NTSC | National Transportation Systems Center (was TSC) |
NTSPS | National Transportation Strategic Planning Study |
NTTIS | National Truck Trip Information Survey |
NVF | New Vehicle Fleet |
NVPP | National Vehicle Population Profile (Polk) |
O/D | Origin/Destination |
OBC | On Board Computer |
OFE | Other Freeway and Expressway |
OHIM | Office of Highway Information Management |
OOIDA | Owner-Operator Independent Drivers Association |
OOS | Out of Service |
OPA | Other Principal Arterial |
OST | Office of Secretary of Transportation |
P | Terminal Serviceability |
P&R | Planning and Research |
PAR | Police Accident Report |
PAS | Principal Arterial System |
PATH | Program on Advanced Technology for the Highway |
PC | Passenger Car |
PCA | Portland Cement Association |
PCC | Portland Cement Concrete |
PCE | PC Equivalent |
PCI | Pavement Condition Index |
PCPH | Passenger Cars Per Hour |
PCPHPL | Passenger Cars Per Hour Per Lane |
PCR | Pavement Condition Rating |
PDC | Portable Data Carrier (smart tag) |
PFA | Pedestrian Federation of America |
PHF | Peak Hour Factor |
PI | Principal Investigator |
PIARC | Permanent International Association of Road Congresses |
PIERS | Port Import/Export Report Service |
PIH | Pan-American Institute of Highways |
PL | Performance Level |
PM- 10 | Particulate Matter under 10 microns |
PMCG | Pavement Management Coordinating Group |
PMS | Pavement Management System |
PMT | Person Miles of Travel |
POD | Plain Old Driving |
POE | Port of Entry |
PPA | Project Plan Agreement |
PR | Procurement Request |
PRM | Proposed Rulemaking |
PS&E | Plans, Specifications, and Estimates |
PS/C | Prestressed Concrete |
PSR | Pavement Serviceability Rating |
PSU | Primary Sampling Unit |
PTC | Permanent Traffic Counter |
PTF | Pavement Testing Facility |
PTI | Pennsylvania Transportation Institute |
PTMS | Public Transportation Management System |
PTRC | Planning and Transport Research and Computation |
PUD | Planned Unit Development |
PWIM | Portable WIM |
Pt | Terminal Serviceability index (asphalt) |
Q | Traffic volume |
R&D | Research and Development |
R&R | Restoration and Rehabilitation |
RB | Rigid Body |
RCI | Roadway Congestion Index |
RCOC | Regional Coordinating Office Contractor (SHRP) |
RCU | Roadside Communicator Unit |
RD&T | Research, Development, and Technology |
RD&T2 | RD&T Transfer |
RDF | Reliability Design Factor |
RDS | Radio Data System |
RDSS | Radio Determination Satellite Services |
RDT&E | Research, Development, Test, and Evaluation |
RIMS | Regional Information Management System (SHRP) |
RIN | Regulatory Identification Number |
ROW | Right of Way |
RQCS | Reference Quarter Car Simulation |
RRI | Reference Roughness Index |
RSPA | Research and Special Programs Administration |
RT | Right Turn |
RTAP | Rural Technical Assistance Program (now LTAP) |
RTCC | Research and Technology Coordinating Committee |
RTCG | Research and Technology Coordinating Group |
RTDB | Regional Traffic Data Base (LTPP) |
RTEB | Research and Technology Executive Board |
RTI | Road Transport Informatics |
RTOR | Right Turn On Red |
RTP | Regional Transportation Plan |
RTPC | Research and Technology Program Committee |
RTRRM | Response Type Road Roughness Meter |
RVIA | Recreation Vehicle Industry Association |
RWIM | Roadway WIM |
RWIS | Road Weather Information Systems |
SAC | Suburban Activity Center |
SAE | Society of Automotive Engineers |
SASHTO | Southeastern Association of State Highway and Transportation Officials |
SAW | Surface Acoustic Wave |
SBIR | Small Business Innovation Research |
SCM | State, County, and Municipal |
SCOP | Standing Committee on Planning (AASHTO) |
SEB | Stateline Entry Beacon |
SEE | Social, Economic, and Environmental factors |
SF | Service Flow Rate, vph |
SFL | Service Flow Rate per Lane, vphpl |
SHA | State Highway Agency |
SHAWS | Safety Hazard Advance Warning System |
SHRP | Strategic Highway Research Program |
SHV | Specialized Hauling Vehicle |
SIP | State Implementation Plat |
SMS | Safety Management System |
SMS | Space Mean Speed (harmonic average) |
SN | Structural Number |
SN | Asphalt strength |
SNPRM | Supplemental NPRM |
SOP | State of the Practice |
SOW | Statement of Work |
SP&R | State Planning and Research |
SPS | Special Pavement Studies |
SRO | Site Specific/Related/Other (SHRP code) |
SSO | Single State Only |
STA | State Transportation Agency |
STAA | Surface Transportation Assistance Act (1982) |
STAPPA | State and Territorial Air Pollution Program Administrators |
STH | State Highway |
STIP | Statewide Transportation Improvement Program |
STP | Surface Transportation Program |
STPP | Surface Transportation Policy Project |
STRS | Strategic Transportation Research Study |
STT | Single Trailer Truck |
SU | Single-Unit truck |
SVRD | Single-Vehicle Roadway Departure (accident) |
SWIM | Slow speed WIM |
T&E | Test and Evaluation |
T-factor | Truck percent in DHV |
T/L | Traffic/Load |
T2 | Technology Transfer |
TAC | Transportation Association of Canada |
TAD | Traffic Accident Data |
TAR | Transportation Acquisition Regulation |
TAZ | Traffic Analysis Zone |
TCC | Transportation Computer Center |
TCDH | Traffic Control Devices Handbook |
TCM | Transportation Control Measures |
TCP | Traffic Control Plan |
TDB | Traffic Data Base (SHRP) |
TDC | Traffic Data Collection |
TDC | Travel Data Center |
TDM | Transportation Demand Management |
TFCU | Transportation Federal Credit Union |
TPHRC | Turner-Fairbank Highway Research Center |
TFT | Tractor Full-Trailer |
THS | Territorial Highway System |
TIA | Traffic Impact Analysis |
TIA | Telecommunications Industries Association |
TIPA | Trucks Involved in Fatal Accidents (UMTRI) |
TIGER | Topologically Integrated Geographic Encoding & Referencing |
TIN | Traffic Information Network |
TIP | Trucking Industry Profile (Polk) |
TIUS | Truck Inventory and Use Study |
TL | Truckload |
TMA | Transportation Management Area |
TMC | Traffic Management Center |
TMDS | Traffic Monitoring Data Software |
TMG | Traffic Monitoring Guide |
TMS | Time Mean Speed (arithmetic average) |
TOD | Time of Day |
TOFC | Trailer-on-flatcar |
TONS | Transportation Office Network System |
TRADAS | Traffic Data System (Chaparral) |
TRB | Transportation Research Board (of the NRC) |
TRDF | Texas Research and Development Foundation |
TRF | Transportation Research Forum |
TRI | Trucking Research Institute (ATA) |
TRIP | The Road Information Program |
TRIS | Transportation Research Information Services |
TRO | Travel Reduction Ordinance |
TRRL | Transportation Road Research Laboratory |
TSC | Transportation Systems Center (Now NTSC) |
TSM | Transportation System Management |
TST | Tractor Semi-Trailer |
TTI | Texas Transportation Institute |
TVT | Traffic Volume Trends |
TWC | Two-Way Communication |
TWS | Truck Weight Study |
UA | Urbanized Area |
UBOA | United Bus Owners of America |
UCBITS | University of CA Berkeley Institute of Transportation Studies |
UIIA | Uniform Intermodal Interchange Agreement |
UMTA | Urban Mass Transportation Administration (now FTA) |
UMTRI | University of Michigan Transportation Research Institute |
USCC | United States Chamber of Commerce |
UTC | Urban Traffic Control |
UTCS | UTC System |
UTPS | Urban Transportation Planning System |
V | Hourly volume, vph or vphpl |
V | Design speed |
V/C | Volume/Capacity |
V/SF | Volume/Service Flow |
VAN | Value Added Network |
VE | Value Engineering |
VHD | Vehicle-hours of delay |
VHT | Vehicle-Hours of Travel |
VIDS | Video Incident Detection System |
VIN | Vehicle Identification Number |
VIP | Video Image Processing |
VKT | Vehicle-Kilometers of Travel |
VM | Vehicle-Miles |
VMS | Variable Message Sign |
VMT | Vehicle-Miles Traveled/of Travel |
VO | Vehicle Occupancy |
VOC | Volatile Organic Compounds |
VPD | Vehicles Per Day |
VPH | Vehicles Per Hour |
VPHPL | Vehicles Per Hour Per Lane |
VRC | Vehicle/Roadside Communications |
VS | Vehicle Speed |
VSC | Variable Speed Control |
VTC | Volume to Capacity |
WASHTO | Western Association of State Highway and Transportation Officials |
WAVM | Wide-Area Vehicle Monitoring |
WCTR | World Conference on Transport Research |
WES | Waterways Experiment Station |
WET | Wetland Evaluation Technique |
WHI | Western Highway Institute |
WIM | Weigh-In-Motion |
WS | Weigh Station |
ZAC | Zone Access Control |
ZEV | Zero Emission Vehicle |