NOISE EXPOSURE FORECASTS: EVOLUTION, EVALUATION, EXTENSIONS, AND LAND USE INTERPRETATIONS
BOLT BERANEK AND NEWMAN INC VAN NUYS CA
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Part I describes the evolution of methods for relating aircraft noise exposure to community response in this country, starting with the original Composite Noise Rating CNR concept developed in 1952, and with applications specifically to aircraft noise in 1957 under Air Force sponsorship. The development of CNR procedures for civil and military aircraft in 1962 utilizing perceived noise level contours and the development of Noise Exposure Forecast NEF procedures in 1967 utilizing effective perceived noise level data are recounted and compared. Part II interprets the noise exposure due to aircraft operations, as expressed in Noise Exposure Forecast NEF values, in terms of estimated impact on land uses. Assessments of the land use compatibility with aircraft noise as a function of NEF values are given for a variety of land uses for the purpose of providing guides in land use planning, zoning and in land use development and building construction.