| AASHTO |
American Association of State Highway and Transportation Officials |
| ADA |
Americans with Disabilities Act of 1990 |
| ADT |
average daily traffic |
| ATPPL |
Alternative Transportation in Parks and Public Lands |
| ATS |
alternative transportation system |
| BAC |
blood alcohol concentration |
| BIA |
Bureau of Indian Affairs |
| BLM |
Bureau of Land Management |
| BLS |
Bureau of Labor Statistics |
| BOO |
Build-Own-Operate |
| BOR |
Bureau of Reclamation |
| BOT |
Build-Operate-Transfer |
| BPI |
Bid Price Index |
| BPR |
U.S. Bureau of Public Roads |
| BRT |
bus rapid transit |
| CAFE |
Corporate Average Fuel Economy |
| CEV |
capacity-equivalent vehicle |
| CFR |
Code of Federal Regulations |
| CFS |
Commodity Flow Survey |
| CMAQ |
Congestion Mitigation and Air Quality Improvement Program |
| Combo |
combination truck |
| CPI |
Consumer Price Index |
| CREATE |
Chicago Region Environmental and Transportation Efficiency Program |
| CTAA |
Community Transportation Association of America |
| DAR |
Defense Access Road Program |
| DBFO |
Design-Build-Finance-Operate |
| DBOM |
Design-Build-Operate-Maintain |
| DFW |
Dallas/Fort Worth |
| DHS |
U.S. Department of Homeland Security |
| DMS |
dynamic message signs |
| DoD |
U.S. Department of Defense |
| DOI |
U.S. Department of the Interior |
| DOT |
U.S. Department of Transportation |
| DVMT |
daily vehicle miles traveled |
| EFM |
Electronic Freight Manifest |
| EIA |
Energy Information Administration |
| ERFO |
Emergency Relief for Federally Owned Roads |
| FAF |
Freight Analysis Framework |
| FARS |
Fatality Analysis Reporting System |
| FEMA |
Federal Emergency Management Agency |
| FH |
Forest Highways Program |
| FHWA |
U.S. Federal Highway Administration |
| FLH |
Federal Lands Highway |
| FLHP |
Federal Lands Highway Program |
| FLMA |
Federal Lands Management Agency |
| FLREA |
Federal Lands Recreation Enhancement Act |
| FMCSA |
Federal Motor Carrier Safety Administration |
| FPM |
freight performance manifest |
| FTA |
U.S. Federal Transit Administration |
| FWS |
U.S. Fish and Wildlife Service |
| FY |
Fiscal Year |
| GAN |
Grant Anticipation Note |
| GARVEE |
Grant Anticipation Revenue Vehicle |
| GDP |
gross domestic product |
| HERS |
Highway Economic Requirements System |
| HFCS |
Highway Functional Classification System |
| HI |
health index |
| HMCRP |
Hazardous Materials Cooperative Research Program |
| HOT |
high-occupancy toll |
| HOV |
high-occupancy vehicle |
| HPMS |
Highway Performance Monitoring System |
| HPMS-AP |
HPMS Analytical Process |
| HSAS |
Homeland Security Advisory System |
| HTF |
Highway Trust Fund |
| ICM |
integrated corridor management |
| IFTWG |
Intermodal Freight Technology Working Group |
| IRI |
IRI International Roughness Index |
| IRR |
Indian Reservation Roads |
| ISTEA |
Intermodal Surface Transportation Efficiency Act of 1991 |
| ITS |
Intelligent Transportation Systems |
| LMHS |
Land Management Highway System |
| LNG |
liquefied natural gas |
| LPG |
liquefied petroleum gas |
| M&O |
management and operations |
| MCS |
maintain current spending |
| MEI |
maximum economic investment |
| MinBCR |
minimum benefit-cost ratio |
| MIR |
Military Installation Roads |
| MPO |
metropolitan planning organization |
| MTA |
Mass Transit Account |
| NAFTA |
North American Free Trade Agreement |
| NBI |
National Bridge Inventory |
| NBIAS |
National Bridge Investment Analysis System |
| NBIS |
National Bridge Inspection Standards |
| NCFRP |
National Cooperative Freight Research Program |
| NCHRP |
National Cooperative Highway Research Program |
| NFSR |
National Forest System Roads |
| NHS |
National Highway System |
| NHTS |
National Household Travel Survey |
| NHTSA |
National Highway Traffic Safety Administration |
| NOx |
nitrogen oxide |
| NPS |
National Park Service |
| NPTS |
Nationwide Personal Transportation Survey |
| NTD |
National Transit Database |
| PCR |
Pavement Condition Rating |
| PL |
Public Law |
| PLH |
Public Lands Highways |
| PLDR |
Public Lands Development Roads |
| PMT |
passenger miles traveled |
| POV |
privately owned vehicle |
| PPP |
public-private partnership |
| PRP |
Park Roads and Parkways |
| PSR |
Present Serviceability Rating |
| PV |
passenger vehicle |
| RFP |
Request for Proposals |
| RFQ |
Request for Quotation |
| RRP |
Refuge Roads Program |
| RTD |
Regional Transportation District |
| RVD |
recreation visitor day |
| SAFETEA-LU |
Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users |
| SDDC |
Surface Deployment and Distribution Command |
| SDDCTEA |
Surface Deployment and Distribution Command Transportation Engineering Agency |
| SEP-15 |
SEP-15 Special Experimental Project No. 15 |
| SIB |
State Infrastructure Bank |
| SQC |
Synthesis Quantity, and Condition |
| SR |
sufficiency rating |
| SSI |
Sensitive Security Information |
| STP |
Surface Transportation Program |
| STRAHNET |
Strategic Highway Network |
| STSIP |
Surface Transportation Security Inspection Program |
| SU |
single-unit truck |
| SUV |
sports utility vehicle |
| TDM |
traffic demand management |
| TEA-21 |
Transportation Equity Act for the 21st Century |
| TERM |
Transit Economic Requirements Model |
| TEU |
twenty-foot equivalent unit |
| TIFIA |
Transportation Infrastructure Finance and Innovation Act |
| TMC |
traffic management center |
| TOT |
truck-only toll |
| TSA |
Transportation Security Administration |
| TTC |
Trans-Texas Corridor |
| TTI |
Texas Transportation Institute |
| TVT |
Traffic Volume Trends |
| USACE |
U.S. Army Corps of Engineers |
| USC |
United States Code |
| USDA |
U.S. Department of Agriculture |
| USFS |
U.S. Forest Service |
| UZA |
urbanized area |
| VII |
vehicle infrastructure integration |
| VMS |
variable message sign |
| VMT |
vehicle miles traveled |
| VRM |
vehicle revenue mile |
| V/SF |
volume to service flow |
| VSL |
variable speed limit |
