Accession Number : AD0618190

Title :   ANALYSIS OF COMMUNITY AND AIRPORT RELATIONSHIPS/NOISE ABATEMENT. VOLUME I. AN APPROACH TO ANALYSIS OF AIRCRAFT NOISE PROBLEMS USING COMPUTER-AIDED TECHNIQUES.

Descriptive Note : Technical rept. for May 63-Apr 64,

Corporate Author : BOLT BERANEK AND NEWMAN INC LOS ANGELES CA

Personal Author(s) : Clark, Welden E.

Report Date : DEC 1964

Pagination or Media Count : 73

Abstract : Development of a computer-aided approach to the analysis of aircraft noise as it affects communities near airports is summarized in the report. The major factors that must be described to specify the noise stimulus and the factors which appear to be relevant to description of the community-wide response to that noise are discussed and diagrammed. An approach to analysis of aircraft noise situations that involves close man-computer interaction is formulated and programming to implement this approach is described. Some illustrations of the process are presented. The major computer programs being developed will: (a) calculate perceived noise levels from octave band noise spectra; (b) calculate areas from graphical input data (maps, noise contours); (c) calculate and display noise contours for a simulated aircraft flight; (d) calculate the time pattern of noise exposure at a ground position near an aircraft flight path; and (e) calculate and assemble the noise levels occurring at multiple ground positions during a number of simulated aircraft flights. (Author)

Descriptors :   *AIRCRAFT NOISE, *URBAN AREAS, *COMPUTER PROGRAMMING, FLIGHT PATHS, URBAN PLANNING, AIR TRANSPORTATION, JET AIRCRAFT NOISE, COMMERCIAL AIRCRAFT, DIGITAL COMPUTERS, PUBLIC OPINION, PUBLIC RELATIONS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE