• 2023-04-24

    Projecting the health and economic burden of aircraft noise

    This study projects the long-term health and economic costs of aircraft noise generated by the NextGen automated flight system, focusing on communities near Baltimore Washington International Airport. Using a mathematical simulation model, researchers estimated the impact of noise exposure on cardiovascular disease, anxiety, annoyance, and low birth weight over periods of 10, 20, and 30 years. The findings are intended to inform noise mitigation policies and provide a clearer picture of the public health consequences of modern air traffic management systems.
  • 2023-04-24

    FAA authority to change the 65 DNL noise contour

    Aviation noise consultant Vince Mestre explains to the Port of Seattle why changing the FAA's 65 DNL noise contour standard — the threshold used to determine acceptable aircraft noise near residential areas — would likely require an act of Congress rather than a simple regulatory update. The 65 DNL standard is embedded in at least three federal regulations and orders (CFR 14 Parts 150 and 161, and FAA Order 1050.1F), all of which trace their authority back to enabling legislation such as the Aviation Safety and Noise Abatement Act (ASNA) of 1978 and the Airport Noise and Capacity Act (ANCA) of 1990. Because the FAA's rulemaking authority is granted and bounded by those Congressional statutes, modifying ASNA would most likely be required before the FAA could formally lower or otherwise change the noise compatibility standard.
  • 2023-04-14

    Associations between aircraft noise exposure and self-reported sleep duration and quality in the United States-based prospective Nurses’ Health Study cohort

    A large study of over 35,000 female nurses across the United States found that exposure to aircraft nighttime noise levels at or above 45 decibels was associated with 23% greater odds of sleeping less than 7 hours per night. The research, which tracked participants living near 90 U.S. airports between 2000 and 2014, suggests that aircraft noise — including at levels below the federally regulated threshold of 65 decibels — may meaningfully disrupt sleep duration. Stronger effects were observed among residents in the Western United States and those living near major cargo airports, findings with direct relevance to communities around airports like Sea-Tac.
  • 2022-12-05

    The FAA’s 65 dBA DNL is not a safe noise exposure level for the American public

    Academic paper presented at the 183rd Meeting of the Acoustical Society of America arguing that the FAA’s 65 dBA day-night average sound level standard is not safe for public health. The paper discusses how the EPA calculated safer levels at 55 dB for outdoor activities and 45 dB for indoor activities, and examines the non-auditory
  • The FAA allows Americans to be exposed to unsafe levels of aircraft noise

    Daniel Fink – djfink01@aol.com Twitter: @QuietCoalition Board Chair, The Quiet Coalition 60 Thoreau Street Concord, MA 01742 United States The Quiet Coalition is a program of Quiet Communities, Inc., Lincoln, MA, USA Popular version of 4aNS8-The Federal Aviation Administration (FAA) allows Americans to be exposed to unsafe levels of aviation noise, presented at the 183rd
  • 2022-12-02

    Guidelines for Considering Noise in Land Use Planning and Control (USDOT/EPA)

    This document appears to be a blank or nearly blank page with no readable text content, likely a placeholder or cover page from the Sea-Tac Airport noise policy archive. No substantive policy information, data, or findings could be extracted from this page.
  • 2022-12-02

    Guidelines for Considering Noise in Land Use Planning and Control (USDOT/EPA)

    USDOT and EPA joint publication providing guidelines for considering noise in land use planning and control. Document covers noise abatement, land use compatibility, DNL noise contours, and noise control policy frameworks relevant to airport noise mitigation and urban planning. Published under the U.S. Department of Transportation and Environmental Protection Agency.
  • 2022-11-29

    Your 2¢ Worth, Meeting #6: Alternative Futures

    This document records community feedback from Meeting #6 of a public engagement series on alternative futures for neighborhoods near Sea-Tac Airport, where residents from Valley View, Riverton Heights, Des Moines, and other areas discussed three options: creating greenbelts and open spaces, pursuing a planned city renewal approach, or allowing an unrestricted free market. Participants raised concerns about airport noise, property taxes, displacement of residents, loss of natural resources, and the Port of Seattle's land acquisition practices. Communities generally favored enforceable planning with citizen input, and many preferred the greenbelt option, while expressing skepticism about government-led redevelopment and unregulated market approaches.
  • 2022-11-29

    Your 2¢ Worth, Meeting #6: Alternative Futures

    Community meeting notes from ‘Your 2¢ Worth’ Meeting #6 discussing alternative futures for neighborhoods near Sea-Tac Airport, including Valley View, Riverton Heights, Des Moines, Shorewood, North Hill, and Highline Community College areas. Three alternatives evaluated: Alternative #1 (Greenbelts and Open Spaces combining active and passive uses), Alternative #2 (Planned City approach with complete renewal of
  • Calculating DNL65

    We’ve often made the claim that DNL65 is not really a unit of measure. And when we say that it comes off as both condescending and patronizing. Okeedokee… If you want to understand DNL65,  you should probably start by going to the regulations governing Airport Noise Compatibility and Planning aka Part 150. Got it? Great.