FURTHER SENSITIVITY STUDIES OF COMMUNITY-AIRCRAFT NOISE EXPOSURE (NOISEMAP) PREDICTION PROCEDURES

This report describes the results of studies of the sensitivity of the noise exposure contours to various model parameters and assumptions presently in the NOISEMAP procedure. The areas within Day/Night Level (LDN) contours for ten Air Force airbases increased by 11 to 40 percent when the noise measure was adjusted for the presence of pure tones. The contour areas for typical mixed fighter, bomber/tanker, and training airbases were reduced by 3 to 11 percent by substitution of the SAE algorithms for ground-to-ground propagation and transition models, whereas adding the fuselage shielding algorithm reduced the contour areas by 13 to 22 percent. Since there is little firm evidence showing one set of algorithms more accurate than the other, the present NOISEMAP models will be retained until further technical analyses or new data show a clear basis for alteration.

  • Corporate Authors:

    Bolt, Beranek and Newman, Incorporated

    21120 Vanowen Street
    Canoga Park, CA  USA  91303
  • Authors:
    • BISHOP, D E
    • Dunderdale, T C
    • HORONJEFF, R D
    • Mills, J F
  • Publication Date: 1977-4

Media Info

  • Pagination: 88 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00166539
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: BBN-3295 Final Rpt., AMRL-TR-76-116
  • Contract Numbers: F33615-76-C-0507
  • Files: TRIS
  • Created Date: Oct 29 1978 12:00AM