TagNoise(258)

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.

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.

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

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.

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.

This article from the Snohomish County Business Journal discusses growing interest in establishing scheduled commercial air service at Paine Field in Everett, Washington, as an alternative to the congested Sea-Tac Airport. Supporters argue that commercial flights would boost the local economy and attract new businesses, while noting that modern, quieter aircraft have significantly reduced noise concerns. The county's 20-year airport master plan, approved in December, projected commuter service flights from Paine Field within five years.

The Sea-Tac/Communities Plan outlines three noise impact programs for managing properties affected by aircraft noise at Seattle-Tacoma International Airport. All three programs involve a designated government unit purchasing affected properties through negotiation or condemnation. The programs differ in how the land is subsequently used: Program One converts it to low-intensity open space such as golf courses or farmland; Program Two redevelops it for noise-compatible industrial or commercial uses; and Program Three leases the properties back to prior owners for a set period, leaving land use largely unchanged in the short term.