Accession Number : ADA113672

Title :   Field Studies of the Air Force Procedures (NOISECHECK) for Measuring Community Noise Exposure from Aircraft Operations.

Descriptive Note : Final rept.,

Corporate Author : AIR FORCE AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OH

Personal Author(s) : Lee,R A

PDF Url : ADA113672

Report Date : Mar 1982

Pagination or Media Count : 130

Abstract : This report describes the results of noise measurements at Laughlin AFB and Homestead AFB to field test the NOISECHECK equipment and procedures developed under contract by Bolt, Beranek and Newman, Inc. and Digital Acoustics Inc. NOISECHECK is the equipment and procedures used by the Air Force to spot check or validate the long term noise exposure predicted by NOISEMAP, the Air Force computer program for predicting community noise exposure from aircraft operations. The total noise exposure level at a specified location has an uncertainty associated with it whether the level is predicted or measured. The purpose of NOISECHECK is to determine the total noise exposure in terms of the Day-Night Level (DNL) metric for a specified ground location from direct measurements. NOISEMAP predicts DNL values for yearly-averaged 'busy days' aircraft operations. Therefore, the direct DNL measurements need to be normalized to this 'busy day' DNL. The NOISECHECK Procedures lead you through these normalizations in a straightforward step-by-step method. The results of the Laughlin and Homestead tests show that, with the proper data collection, the NOISECHECK procedures can validate the long-term noise exposure and explain any differences between the NOISEMAP predicted DNL values and the short term measurement DNL values. (Author)

Descriptors :   *AIRCRAFT NOISE, *COMMUNITIES, *EXPOSURE(GENERAL), *AIR FORCE OPERATIONS, MEASUREMENT, INTENSITY, LONG RANGE(TIME), SHORT RANGE(TIME), MEASURING INSTRUMENTS, COMPUTER PROGRAMS, DATA ACQUISITION, MONITORING, DIGITAL SYSTEMS, FIELD TESTS, AIRCRAFT LANDINGS, TAKEOFF, TRACKS(AERODYNAMICS), RUNWAYS, DAILY OCCURRENCE, STATISTICAL ANALYSIS, AIR FORCE FACILITIES

Subject Categories : Military Aircraft Operations
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE