TagFAA(684)

The FAA's National Plan of Integrated Airport Systems (NPIAS) 2019–2023 is a report to Congress that outlines the federal government's framework for developing and maintaining a national network of airports eligible for federal funding. It covers planned airport infrastructure investments across the United States over a five-year period. While the report addresses airports nationwide, it does not specifically focus on noise policy or Sea-Tac Airport.

This document from the FAA's National Plan of Integrated Airport Systems (NPIAS) 2023-2027 defines the categories and roles of U.S. airports, ranging from large commercial hubs to small general aviation fields, based on criteria such as annual passenger enplanements, flight operations, and cargo weight. It outlines how airports are classified as Primary (Large, Medium, Small Hub, or Nonhub) or Nonprimary (National, Regional, Local, Basic, or Unclassified), and identifies the 3,287 airports that make up the national airport system. The document also details the data sources used by the FAA to determine each airport's classification and role within the system.

Appendix B of the National Plan of Integrated Airport Systems (NPIAS) 2023-2027 provides national and state maps showing the locations of all 3,287 existing NPIAS airports across the United States and its territories, including Alaska, Hawaii, Puerto Rico, Guam, and American Samoa. Airports are categorized by type — Large/Medium hub, Small/Nonhub, National/Regional, Local/Basic, and Unclassified — and displayed alongside Metropolitan and Micropolitan Statistical Areas. Note that this document covers the broader national airport system and does not contain specific noise policy information related to Sea-Tac Airport.

This document is Appendix A of the FAA's National Plan of Integrated Airport Systems (NPIAS) for 2021-2025, which lists airports across the U.S. along with their ownership, category, and 5-year development cost estimates for federally eligible improvements. It defines key terms such as airport categories (Commercial Service, Reliever, and General Aviation), hub classifications based on passenger enplanements, and based aircraft counts. The data was primarily compiled in 2019 and does not reflect changes in airline activity due to the COVID-19 pandemic.

This document argues that the FAA and Sea-Tac Airport failed to properly account for combined aircraft noise from both Sea-Tac and Boeing Field when approving the Greener Skies/NextGen flight program, leaving hundreds of Beacon Hill homes without sound insulation assistance they may have been entitled to. A 2002 King County International Airport study had already identified that noise levels in parts of Beacon Hill exceeded the 65 dB DNL federal threshold when both airports' noise was measured together, yet no mitigation was provided. The document also highlights that no public outreach was conducted in the Beacon Hill neighborhood—a majority-Asian, multilingual community—before the new flight paths were implemented.

This document contains a structured set of interview questions developed for a GAO study (project 103933) examining how NextGen flight path changes have affected local communities through increased aviation noise. The questions are directed at community groups and cover topics including FAA outreach efforts before and after implementation, equity concerns, the drivers of noise complaints, and whether any flight path modifications were sought or made following implementation. It aims to assess how effectively the FAA communicated with and involved communities in performance-based navigation (PBN) decisions.

This document outlines concerns raised by the Quiet Skies Coalition about how the FAA's NextGen air traffic modernization program has increased flight operations at Seattle-Tacoma International Airport, creating concentrated flight paths over low-income and minority neighborhoods like Burien. It argues that the FAA failed to engage communities before implementing new flight routes, dismissed significant noise and air quality concerns, and has not analyzed the cumulative health impacts of aircraft noise and ultrafine particle emissions on nearby residents. The document also details a successful legal challenge by the City of Burien against the FAA in the 9th Circuit Court of Appeals, which the FAA has continued to ignore.

The 'Greener Skies' program, approved by the FAA in late 2012 and promoted by the FAA and Port of Seattle, promised to dramatically reduce aircraft noise near Sea-Tac Airport by routing more than half of all arrivals over Elliott Bay, far from residential areas. Critics argue the program was fundamentally flawed and never delivered on its promises, as air traffic controllers rarely use the Elliott Bay routes due to the need to merge east- and west-side arrival streams. FAA and industry's own data are cited as evidence that the program amounted to an environmental fraud, with concentrated flight paths continuing to impact west-side communities while east-side routes were never given equivalent precision procedures.

This document explains how aircraft noise is measured using decibel-based metrics such as DNL, CNEL, and SEL, and highlights that the FAA's accepted noise threshold of 65 dB exceeds the World Health Organization's recommended limits of 50–55 dB outdoors and 30–35 dB indoors. It also notes that standard metrics like SEL fail to capture the cumulative impact of repeated aircraft overflights. The international aviation body ICAO recommends a four-part 'Balanced Approach' to managing airport noise, encompassing noise reduction at the source, land-use planning, operational procedures, and operating restrictions.

This presentation examines the consequences of runway configuration changes at Seattle-Tacoma International Airport (Sea-Tac), including louder departure noise for Burien residents, reduced airport capacity, and potential FAA workaround taxi routes. It references Seattle Air Traffic Control Tower standard operating procedures for opening and closing runways, and analyzes the feasibility of simultaneous parallel runway operations under FAA Order JO 7110.65. Key technical challenges identified include the need to relocate the Instrument Landing System, extreme ramp congestion, and the possibility of displacing the Runway 34R threshold by approximately 3,400 feet to achieve parallel threshold alignment.