TagPart 150(118)

Final Noise Exposure Map Report for LaGuardia Airport prepared under Title 14 CFR Part 150 by Environmental Science Associates and other consulting firms for the Port Authority of New York & New Jersey. This report addresses federal requirements for airport noise compatibility planning.

These documents contain communications from January 2017 regarding aircraft noise concerns over the Seahurst and White Center neighborhoods near Seattle-Tacoma International Airport. A noise consultant advises that Seahurst likely falls below the FAA's 65 dBA threshold that defines 'noise sensitive areas,' arguing this means an Environmental Assessment (EA) and historic property inventory are not required. Separately, a Burien resident emails city officials sharing research from Sea-Tac's Part 150 Study suggesting that flights over these neighborhoods were anticipated and approved, and that the absence of an EIS may not constitute valid grounds for litigation by the Quieter Skies coalition.

This Federal Aviation Administration (FAA) page outlines the agency's Airport Noise programs, covering two key regulatory frameworks: Airport Noise Compatibility Planning (14 CFR Part 150) and Airport Noise and Access Restrictions (14 CFR Part 161). It provides links to funding summaries, noise exposure maps, planning data by state, and regulatory guidance including advisory circulars on noise control and sound insulation for residences near airports. The page also references the FAA's Land Use Planning Initiative, which offers guidance to airport sponsors and local agencies on improving compatibility between airports and surrounding communities.

This October 2016 Port of Seattle briefing presents the Airport Noise Insulation Project for Sea-Tac Airport, outlining how a federally guided noise study (known as a Part 150) is used to identify noise and land-use conflicts in surrounding communities. The project aims to provide sound insulation to eligible homeowners in high-noise areas, with approved mitigation measures qualifying for 80% federal Airport Improvement Program (AIP) grant funding. The briefing covers project elements, homeowner eligibility requirements, community benefits, and associated costs.

This chapter from Sea-Tac Airport's 2013 Part 150 Noise Compatibility Study explains how aircraft noise is measured and analyzed around Seattle-Tacoma International Airport. It covers the basic properties of sound—including loudness, pitch, and duration—and explains why noise is measured on the logarithmic decibel (dB) scale rather than a standard linear scale. The chapter also outlines how noise contour modeling was conducted to assess the real-world impact of aircraft operations on surrounding communities.

This chapter from the Seattle-Tacoma International Airport Part 150 Noise Compatibility Study presents aviation activity forecasts developed to support noise exposure planning through 2018 and beyond. It covers historical passenger enplanement trends showing growth from 8.2 million in 1990 to 15.6 million in 2009, as well as domestic and international air service patterns dominated by Alaska Airlines. The forecasts, approved by the FAA in August 2010, were used to project aircraft fleet mix and noise exposure contours for future planning purposes.

This appendix from Seattle-Tacoma International Airport's 2013 Part 150 Noise Compatibility Study presents supplemental noise analysis results using the FAA's Integrated Noise Model, covering metrics such as Time Above Level, Number of Events Above Level, and Sound Exposure Level. The analysis was prepared for informational purposes only and cannot be used to justify noise mitigation measures, but helps illustrate how aircraft noise affects daily activities like speech and sleep for communities surrounding Sea-Tac. Contour maps and grid point data show projected 2018 noise impacts on noise-sensitive facilities including schools, hospitals, libraries, and places of worship in nearby cities such as SeaTac, Burien, Des Moines, and Tukwila.