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7.0 List of Acronyms AADT Average annual daily traffic AADVMT Annual average daily vehicle miles of travel AEO Annual Energy Outlook ALPR Automatic license plate recorder ATR Automated traffic recorders AVI Automatic vehicle identification BPR Bureau of Public Roads CDM County Data Manager CO Carbon monoxide CRC Coordinating Research Council CT Combination truck DOE Department of Energy DOT Department of Transportation EPA Environmental Protection Agency EVR Electronic Vehicle Registration FAF Freight Analysis Framework FHWA Federal Highway Administration FIPS Federal Information Processing Standards FMCSA Federal Motor Carrier Safety Administration FTA Federal Transit Administration GHG Greenhouse gas GIS Geographic information systems GPS Global positioning systems GUI Graphical user interface GVWR Gross vehicle weight rating HCM Highway Capacity Manual HDT Heavy-duty truck HPMS Highway Performance Monitoring System I/M Inspection and maintenance ITS Intelligent transportation systems LCD Local climatological data LDT Light-duty truck 7-1
LOS Level of service MOVES Motor Vehicle Emission Simulator Model MPO Metropolitan Planning Organization NCDC National Climatic Data Center NCHRP National Cooperative Highway Research Program NEI National Emissions Inventory NMIM National Mobile Inventory Model NOx Oxides of nitrogen NTD National Transit Database OBD On-board diagnostics PC Passenger car PDM Project Data Manager PM Particulate matter RFG Reformulated gasoline RFID Radio frequency identification RSD Remote sensing device RVP Reid vapor pressure SHI Source hours idling SHO Source-hours of operation SHP Source hours parked SIP State Implementation Plan TDFM Travel demand forecasting model TRB Transportation Research Board USGS United States Geological Survey v/c Volume-to-capacity VHT Vehicle-hours traveled VIN Vehicle Identification Number VIUS Vehicle Inventory and Use Survey VMT Vehicle miles of travel VSP Vehicle-specific power WIM Weigh-in-motion 7-2
