In 1986, the FAA initiated the Regulation "Part 150" Airport Noise and Land Use Compatibility Planning Program for homes, schools, health-care facilities, and other "sensitive noise receptors" located in the thunderous shadows of the nation's ever-growing airports. Many of these airports have received funding to implement the largest part of that effort, The Residential Sound Insulation Program. The architectural and program management firm I work for has participated in over 20 sound-insulation programs across the country over the course of 15 years, including the local program for Boston's Logan Airport.

Audible sound threshold

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