Aircraft traffic noise was examined in relation to its predictive estimation. The basic properties of an exposure are shown to be mainly defined by the statistics of near-levels and noise durations. The relationship between these was derived and used to develop a method for the prediction of various noise index quantities such as NNI (Noise Number Index), leq (equivalent continuous energy levels), L sub NP (noise pollution level) LIO (level exceeded for 10%) etc., based on information usually acquired for an NNI assessment. The under leq is shown to be expressible in a form similar to NNI.

  • Corporate Authors:

    Loughborough University of Technology

    Department of Transport Technology
    Loughborough,   England 
  • Authors:
    • Brown, D
  • Publication Date: 1975-5

Media Info

  • Pagination: 168 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00155812
  • Record Type: Publication
  • Source Agency: National Aeronautics and Space Administration
  • Files: TRIS
  • Created Date: Sep 28 1977 12:00AM