U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Prepared by:
Office of Highway Policy Information
Federal Highway Administration
| AADT: | Annual Average Daily Traffic |
| AASHTO: | American Association of State Highway Transportation Officials |
| AC: | Asphalt “Bituminous” Concrete |
| AP: | Analytical Process |
| ARS: | Average Rectified Slope |
| ASTM: | American Society for Testing and Materials |
| ATR: | Automatic Traffic Recorder |
| AWT: | Average Weekday Traffic |
| BTS: | Bureau of Transportation Statistics |
| CAAA: | Clean Air Act Amendments |
| CD: | Collector-Distributor |
| CFR | Code of Federal Regulations |
| CO: | Carbon Monoxide |
| Col: | Collector |
| CRCP: | Continuously Reinforced Concrete Pavement |
| CSV: | Comma Separated Value |
| C.V.: | Coefficient of Variation |
| DLG: | Digital Line Graphs |
| DOT: | Department of Transportation |
| DVKT: | Daily Vehicle-Kilometers of Travel |
| DVMT: | Daily Vehicle-Miles of Travel |
| EPA: | Environmental Protection Agency |
| ESAL: | Equivalent Single Axle Load |
| FA: | Federal-Aid |
| FAF | Freight Analysis Framework |
| FAP: | Federal-aid Primary |
| FHWA: | Federal Highway Administration |
| FIPS: | Federal Information Processing Standards |
| FMCSA: | Federal Motor Carrier Safety Administration |
| GIS: | Geographic Information System |
| GPRA: | Government Performance & Results Act |
| HCM: | Highway Capacity Manual |
| HERS: | Highway Economic Requirements System |
| HOT: | High Occupancy Toll |
| HOV: | High Occupancy Vehicle |
| HPMS: | Highway Performance Monitoring System |
| ID: | Section Identification |
| IM: | Interstate Maintenance |
| Int: | Interstate |
| IRI: | International Roughness Index |
| scope="row"ITS: | Intelligent Transportation System |
| JPCP: | Jointed Plain Concrete Pavement |
| JPEG: | Joint Photographic Experts Group |
| JRCP: | Jointed Reinforced Concrete Pavement |
| KMPT: | Kilometer point |
| Loc: | Local |
| LRS: | Linear Referencing System |
| LTPP: | Long Term Pavement Performance |
| MA: | Minor Arterial |
| MaC: | Major Collector |
| MiC: | Minor Collector |
| MPH: | Miles per Hour |
| MPO: | Metropolitan Planning Organization |
| MPT: | Mile point |
| MRI: | Mean Roughness Index |
| NAAQS: | National Ambient Air Quality Standards |
| NCHRP: | National Cooperative Highway Research Program |
| NHPN: | National Highway Planning Network |
| NHS: | National Highway System |
| NHTSA: | National Highway Traffic Safety Administration |
| NIST: | National Institute of Standards and Technology |
| NN: | National Freight Network |
| OFE: | Other Freeways and Expressways |
| OPA: | Other Principal Arterial |
| PAS: | Principal Arterial System |
| PAS/NHS: | Principal Arterial System/National Highway System |
| PC: | Personal Computer |
| PCC: | Portland Cement Concrete |
| PK: | Primary Key |
| PMS: | Pavement Management System |
| PSI: | Present Serviceability Index |
| PSR: | Present Serviceability Rating |
| ROW: | Right-of-Way |
| RTRRM: | Response Type Road Roughness Meter |
| R/U: | Rural/Urban |
| SAFETEA-LU | Safe Accountable Flexible Efficient Transportation Equity Act: A Legacy for Users |
| SHA: | State Highway Agency |
| SHRP: | Strategic Highway Research Program |
| SI: | International System |
| SN or D: | Structural Number (SN) of Flexible Pavement or Thickness (D) of rigid Pavement |
| SPR: | Statewide Planning and Research |
| STAA: | Surface Transportation Assistance Act |
| STP: | Surface Transportation Program |
| STRAHNET: | Strategic Highway Corridor Network |
| TEA-21: | Transportation Equity Act for the 21st Century |
| THS: | Territorial Highway System |
| TMG: | Traffic Monitoring Guide |
| TMS: | Traffic Monitoring System |
| UK: | Unique Key |
| U.S.: | United States |
| U.S.C.: | United States Code |
| USGS: | United States Geological Survey |
| VDT: | Vehicle Distance Traveled |
| VKT: | Vehicle Kilometers of Travel |
| VMT: | Vehicle-Miles of Travel |
| V/SF: | Volume/Service Flow Ratio |
| WDS: | Weighted Design Speed |
| 4D: | Four Dimensional |
| 90-10: | 90-Percent Confidence Level with 10-Percent Allowable Error |
| << Previous | Contents | Next >> |
