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STNI

STNISea-Tac Noise.Info

  • Solve for Sea-Tac. Solve for every airport.
  • Since 2016, working to obtain justice for everyone living under the flight path.
  • Less Noise. Cleaner Air. Better Public Health. Compensation.
  • Everything you think you know about the airport is wrong.

TagForecast(44)

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  • 2023-09-01

    Aviation Activity Forecast Update: Seattle-Tacoma International Airport (2023)

    This technical memorandum, prepared by Leigh Fisher for the Port of Seattle in September 2023, presents an updated aviation activity forecast for Seattle-Tacoma International Airport. It includes constrained operating growth scenarios, FAA-approved forecast data, and airside simulation modeling documentation used to support environmental review planning at Sea-Tac.
    TagsFAA, Forecast, NEPA, Port Of Seattle, SAMP, Sea-Tac Airport, Sustainable Airport Master PlanFolderAppendices
  • 2023-09-01

    Appendix A: Aviation Activity Forecast Update: Seattle-Tacoma International Airport (2023)

    This technical memorandum, prepared by Leigh Fisher for the Port of Seattle in September 2023, presents an updated aviation activity forecast for Seattle-Tacoma International Airport. It includes Constrained Operating Growth Scenarios (COGS), FAA approval of the forecast update, and airside modeling documentation used to support environmental review. The forecast and operational assumptions outlined in this document serve as the foundation for planning future airport capacity and assessing potential noise and environmental impacts.
    TagsForecast, Leigh-Fisher, Port Of Seattle, SAMP, Sea-Tac Airport, SEPA, Sustainable Airport Master PlanFolderAppendices
  • 2023-09-01

    Appendix B Aircraft and Activity Forecast

    This technical memorandum, prepared by Leigh Fisher for the Port of Seattle in September 2023, provides an updated aviation activity forecast for Seattle-Tacoma International Airport as part of a FAA Part 150 noise study. It outlines forecast and operational assumptions—including projected aircraft types and flight activity levels—that were used to model future noise conditions around Sea-Tac. The report is accompanied by operational data appendices supporting the airport's long-term noise compatibility planning efforts.
    TagsForecast, Leigh-Fisher, Part 150, Port Of Seattle, Sea-Tac AirportFolderNEM
  • Appendix b aircraft acitivity forecast ada final pdf
    2023-09-01

    Appendix B Aircraft and Activity Forecast

    This technical memorandum, prepared by Leigh Fisher for the Port of Seattle in September 2023, provides an updated aviation activity forecast for Seattle-Tacoma International Airport as part of a FAA Part 150 noise study. It outlines forecast and operational assumptions—including projected aircraft types and flight activity levels—that were used to model future noise conditions around Sea-Tac. The report is accompanied by operational data appendices supporting the airport's long-term noise compatibility planning efforts.
    TagsForecast, Leigh-Fisher, Part 150, Port Of Seattle, Sea-Tac AirportFolderNEM
  • Sea-Tac Airport Comparison of Air Carrier Operations Forecasts vs. Actuals, 1975–2010

    A scatter plot comparing multiple historical and projected annual air carrier operations forecasts for Seattle-Tacoma International Airport, spanning approximately 1975–2010. The chart overlays actual operations data against projections from sources including 1997 FAA and ACC (Hockaday) projections, the 1992 Flight Plan Project Final EIS, the 1996 Master Plan Update FEIS, the 1987 PSCOG Draft EIS, and several earlier studies dating back to a 1976 Sea-Tac Communities Plan, illustrating how successive forecasts consistently overestimated growth relative to actual operations.
    TagsEIS, FAA, Forecast, Sea-Tac AirportFolderStatistics
  • 2022-09-12

    Snohomish County Airport/Paine Field master plan update

    This document is the Master Plan Update for Snohomish County Airport/Paine Field, covering a comprehensive range of planning topics including existing airport conditions, aviation activity forecasts, capacity analysis, facility requirements, and a long-term development program. It outlines airfield and landside infrastructure needs, environmental considerations, and financial planning strategies for the airport's future growth. Note that this plan pertains to Paine Field in Snohomish County and does not directly address noise policy at Seattle-Tacoma International Airport.
    TagsAirport Layout Plans, Forecast, General Aviation, Master Plan, Paine Field, RCAAFolderRCAA
  • SAMP-2015-0519-BP12-PortofSeattle Page 05

    Slide 5 from Seattle-Tacoma International Airport's Sustainable Airport Master Plan (SAMP) presenting an unconstrained activity forecast projecting growth to 66 million annual passengers and 540,000 annual operations over 20 years. Includes a comparison table of 2013 PAX rankings, developed acreage, and PAX-per-acre ratios for Sea-Tac, San Francisco, Newark, Boston, and Las Vegas airports.
    TagsForecast, Port Of Seattle, SAMP, Sea-Tac Airport, Sustainable Airport Master PlanFolderSAMP
  • 2022-07-10

    Part 4: Trends and Forecasts — Chapter 4.1, Central Puget Sound Region Population

    This document is Part 4 of a Master Plan study for Sea-Tac International Airport, focusing on trends and forecasts for the Central Puget Sound Region. It examines population and economic growth data to project future air traffic demand, noting that the four-county area around Seattle held over 1.9 million people in 1970—56% of Washington State's population. While the region grew rapidly through the 1950s and 1960s, the plan anticipates more modest growth in the 1970s relative to national averages.
    TagsForecast, Master Plan, Puget Sound, Sea-Tac Airport, STCPFolderfinal plan
  • Tableau Historic Operations 2005-2020

    A data table sourced from the Federal Aviation Administration (FAA) showing historic aircraft operations from 2005 to 2020, broken down by Air Carrier, Air Taxi, General Aviation, and Military/Training categories, along with total operations and percent change from prior year. The table shows a sharp -34.3% decline in total operations in 2020, dropping to 296,048, compared to 450,487 in 2019.
    TagsCOVID-19, FAA, Federal Aviation Administration, Forecast, Sea-Tac Airport, StatisticsFolderStatistics
  • Tableau Historic Passenger Levels 2005-2020

    A Port of Seattle Business Intelligence dashboard showing Sea-Tac Airport's historic air passenger levels from 2005 to 2020, broken down by domestic and international deplaned/enplaned totals. The report highlights a 61.3% decline in total passengers in 2020 (20,045,348) compared to a peak of 51,829,239 in 2019, reflecting the COVID-19 pandemic's impact on air travel.
    TagsCOVID-19, Forecast, Port Of Seattle, Sea-Tac Airport, StatisticsFolderStatistics

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Upcoming Events

  • Part 150 NCP Workshop — Burien
    Add to CalendarMSaturday Oct 17: 10:00am

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — SeaTac
    Add to CalendarMMonday Oct 19: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — Des Moines
    Add to CalendarMTuesday Oct 20: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]

[See all...]


Issues

Sea-Tac Airport is currently undergoing the largest and longest expansion in its history, collectively known as the Sustainable Airport Master Plan (SAMP). Some of it you can already hear, but you’re probably not aware of what it all means. Here’s what you need to know.
read more...

Read This!

As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.
continue...

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