Download or read book Community Noise Exposure Resulting from Aircraft Operations written by William J. Galloway and published by . This book was released on 1974 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a computer program to calculate community noise exposure as determined by the Noise Exposure Forecast (NEF) methodology. Studies by the United States Environmental Protection Agency have meanwhile led to the specification of another community noise exposure measure: the Day/Night Average Level (DNL). Since the two types of descriptors are essentially similar, the computer program may be adapted to this new unit when the need arises without the need to redevelop the computational algorithms.