Guidebook for Quantifying Airport Ground Access Vehicle Activity for Emissions Modeling (2017)

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1 This guidebook provides analysts an approach to determining the appropriate level of emissions data needed to model emissions for airport projects. Using a Tier I (Basic), Tier II (Intermediate), or Tier III (Advanced) approach, projects may be categorized based on the type of document that is being prepared, the air quality conditions within the project area, the need for accuracy in the GAV-related emissions estimates, and the public’s interest in the project. The guidebook also discusses methods to obtain and/or derive GAV-specific data for input into various computer models (e.g., MOVES, EMFAC, AEDT, and CAL3QHC/CAL3QHCR). For this purpose, the following topics are presented and discussed: • Airport-specific GAV and their operational characteristics (Chapter 3); • General and specific infrastructure where GAV would be expected to operate as well as the identification of individual types of GAV that would operate in each area (Chapter 4); • Specific data requirements for performing emissions modeling (Chapter 5); and • Methods/techniques to efficiently collect and develop existing and future GAV data (Chapter 6). A separate, interactive PowerPoint tutorial has been made available with the guidebook to aid in its application. The tutorial is available for download from the guidebook webpage, which can be found at www.trb.org by searching “ACRP Research Report 180”. For brev- ity and ease of use of the guidebook, additional information and data are contained in the Contractor’s Final Report on ACRP Project 02-63, “Quantifying Airport Ground Access Vehicle Activity for Emissions Modeling,” which is accessible from a link on the project webpage. A link to the project page also appears on the guidebook webpage. S U M M A R Y