Improving AEDT Noise Modeling of Hard, Soft, and Mixed Ground Surfaces

Airports will soon be required to use the Federal Aviation Administration's (FAA's) Aviation Environmental Design Tool (AEDT) when conducting airport noise studies (e.g., FAR Part 150 studies, Environmental Impact Statements, Environmental Assessments). AEDT uses a method that assumes noise propagation only over "soft" ground surfaces in the calculation of lateral attenuation, based on SAE-AIR-5662, Method for Predicting Lateral Attenuation of Airplane Noise (2012). In reality, areas around airports are often covered with a variety of ground types (e.g., "hard" or reflective ground, such as large areas of pavement or water), which can affect noise levels around an airport. By ignoring effects from multiple ground types, AEDT may under-predict the noise from aircraft operations. Research is needed to develop a method to account for impedance variability of ground surfaces to improve the noise prediction accuracy of AEDT. The objective of this research is to develop a method to account for impedance variability of ground surfaces in a manner suitable for model implementation to improve the noise prediction accuracy of AEDT.

Language

  • English

Project

  • Status: Completed
  • Funding: $249603.00
  • Contract Numbers:

    Project 02-52

  • Sponsor Organizations:

    Federal Aviation Administration

    800 Independence Avenue, SW
    Washington, DC  United States  20591

    Airport Cooperative Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC    20001
  • Project Managers:

    Navarrete, Joseph

  • Performing Organizations:

    Wyle Laboratories

    El Segundo, CA  United States 
  • Principal Investigators:

    Plotkin, Kenneth

  • Start Date: 20140611
  • Expected Completion Date: 0
  • Actual Completion Date: 20170427
  • Source Data: RiP Project 37682

Subject/Index Terms

Filing Info

  • Accession Number: 01543544
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 02-52
  • Files: TRB, RiP
  • Created Date: Nov 18 2014 1:02AM