Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
42 Questions that an air quality or traffic analyst/planner may have when collecting or develop- ing GAV data for an airport air quality analysis include: Q1. The emission rate output from MOVES is provided by speed bin. How do I calculate emission rates for a particular speed? A. A linear interpolation can be done to calculate intermediate speeds (EPA). Q2. Do the GAV data requirements described in this guidebook apply only to airport-related projects? A. No. Regardless of whether the motor vehicles involved are airport related or non-airport related, the same general data requirements apply (i.e., volume, fleet, speed, and idle/ dwell time). Q3. Do any of the air quality models or methodologies provide default values for the GAV-related data that is required input for the computer models? A. An air quality analyst could choose to run the MOVES model in ânational scaleâ; however, this approach is not encouraged by the EPA. Doing so causes the model to assume default data for inputs such as the GAV fleet mix, and significantly reduces the precision of the results of an airport assessment. Q4. What is the cost/price of applying the automated and intelligent data collection techniques listed in Table 6-1 of this guidebook? A. The cost of applying these techniques varies depending on the number of locations at which the equipment/sensor would be installed and from which manufacturer/vendor the equipment is purchased. For this reason, specific costs are not provided in this guidebook. Q5. What is the useful life of the techniques listed in Table 6-1 of this guidebook? A. The useful life of the equipment/sensors varies depending on the manufacturer/vendor of the equipment/sensor. For this reason, the useful life of the techniques is not provided in this guidebook. Q6. During what phase of a projectâs environmental impact assessment should a ground transportation/traffic engineer and an air quality analyst discuss the GAV data that would be required for the air quality models necessary to evaluate the project? A. It is helpful if an air quality analyst has early input to the development of a transporta- tion consultantâs approach and end-points for data collection (i.e., the scope of work), to ensure that the resulting data can be used for the emissions modeling. Frequently Asked Questions
Abbreviations and acronyms used without definitions in TRB publications: A4A Airlines for America AAAE American Association of Airport Executives AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACIâNA Airports Council InternationalâNorth America ACRP Airport Cooperative Research Program ADA Americans with Disabilities Act APTA American Public Transportation Association ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATA American Trucking Associations CTAA Community Transportation Association of America CTBSSP Commercial Truck and Bus Safety Synthesis Program DHS Department of Homeland Security DOE Department of Energy EPA Environmental Protection Agency FAA Federal Aviation Administration FAST Fixing Americaâs Surface Transportation Act (2015) FHWA Federal Highway Administration FMCSA Federal Motor Carrier Safety Administration FRA Federal Railroad Administration FTA Federal Transit Administration HMCRP Hazardous Materials Cooperative Research Program IEEE Institute of Electrical and Electronics Engineers ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITE Institute of Transportation Engineers MAP-21 Moving Ahead for Progress in the 21st Century Act (2012) NASA National Aeronautics and Space Administration NASAO National Association of State Aviation Officials NCFRP National Cooperative Freight Research Program NCHRP National Cooperative Highway Research Program NHTSA National Highway Traffic Safety Administration NTSB National Transportation Safety Board PHMSA Pipeline and Hazardous Materials Safety Administration RITA Research and Innovative Technology Administration SAE Society of Automotive Engineers SAFETEA-LU Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (2005) TCRP Transit Cooperative Research Program TDC Transit Development Corporation TEA-21 Transportation Equity Act for the 21st Century (1998) TRB Transportation Research Board TSA Transportation Security Administration U.S.DOT United States Department of Transportation
TRA N SPO RTATIO N RESEA RCH BO A RD 500 Fifth Street, N W W ashington, D C 20001 A D D RESS SERV ICE REQ U ESTED ISBN 978-0-309-44664-8 9 7 8 0 3 0 9 4 4 6 6 4 8 9 0 0 0 0 N O N -PR O FIT O R G . U .S. PO STA G E PA ID C O LU M B IA , M D PER M IT N O . 88