Intelligent Switching Between Different Noise Propagation Algorithms: Analysis and Sensitivity

Details

• Creators:
  Boeker, Eric ; Rosenbaum, Joyce
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.) ; Computer Sciences Corporation
• Subject/TRT Terms:
  • Aircraft noise
  • Sound transmission
  • Acoustic emission
  • Terrain
  • Topography
  • Accuracy
  • Algorithms
  • Atmosphere
  • Noise propagation models
• Resource Type:
  Proceedings
• Geographical Coverage:
  United States
• Corporate Publisher:
  John A. Volpe National Transportation Systems Center (U.S.)
• Abstract:
  When modeling aircraft noise on a large scale (such as an analysis of annual aircraft operations at an airport), it is important that the noise propagation model used for the analysis be both efficient and accurate. In this analysis, three different propagation methods are compared over a range of different environmental conditions (uneven terrain, terrain blockage, refractive atmosphere, and ground type transitions) and geometric orientations. These results are then used to inform a scheme of “intelligent switching” between different noise propagation methods as an approach to address the long computational runtimes without sacrificing accuracy in a noise model. The feasibility of this strategy is discussed and potential implementation hurdles are identified.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/9639/dot_9639_DS1.pdf
• File Type:
  [PDF - 294.04 KB]
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha-512:47e7e31c8c1e5d637d017209144b58eb3d5996a56a348d553f643c8e622ad04ef5ce230cebdda162eb55dadefdbad5529f7739ba16d96f0ba791ec67d6924d46