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 United States 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

TRT Terms: Air bases; Aircraft noise; Airports; Climate; Communities; Computer programs; Crash exposure; Forecasting; Mapping; Mathematical models; Military facilities; Noise; Planning; Public relations; Sound attenuation
Uncontrolled Terms: Models
Old TRIS Terms: Air force facilities; Community reactions; Day night levels; Exposure general; Military air facilities; Noise exposure; Noise map computer program
Subject Areas: Aviation; Environment; Planning and Forecasting; Safety and Human Factors; Terminals and Facilities;

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