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How are the DNL Noise Exposure Contours developed?

April 26, 2017contours dnl exposure noise

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How are the DNL Noise Exposure Contours developed?

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SAT used the federally developed and federally approved Integrated Noise Model (INM) to develop the DNL Noise Exposure contours and the boundaries of the Residential Acoustical Treatment Program, which is the industry standard for determining predicted noise impacts around the vicinity of an airport. The FAA?s INM methodology is universally recognized and applied at all U.S. airports.