Overground Excess Sound Attenuation (ESA). Volume 3. Application of ESA Data in Noisefile.

Abstract

This is the third report in the series concerning Overground Excess Attenuation, ESA. Different models and algorithms for computing ESA are compared in terms of differences in A-levels at varying distances for different aircraft noise spectra. ESA values from recent field measurement at Wright-Patterson AFB, Dayton OH, theoretical models, and from NOISEMAP and a SAE recommendation are compared. It is recommended that the current NOISEMAP ESA algorithms be replaced with ESA curves based on Dayton data acquired under moderate downwind propagation conditions. It is also recommended that additional ESA field data be acquired over irregular terrain where direct line-of-sight propagation does not exist. Keywords include: Sound propagation; Sound attenuation; Noise; Community Noise Exposure; Excess sound attenuation.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1985
Accession Number
ADA154820

Entities

People

  • D. W. Bishop

Organizations

  • BBN Technologies

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircraft Noise
  • Aircrafts
  • Algorithms
  • Attenuation
  • Classification
  • Computer Programs
  • Computers
  • Databases
  • Jet Aircraft
  • Line Of Sight
  • Line Of Sight Propagation
  • Measurement
  • Noise
  • Security
  • Spectra
  • Temperature Gradients
  • Urban Areas

Readers

  • Acoustics.
  • Computational Modeling and Simulation