TagPort Of Seattle(2609)

These two Port of Seattle Flight Track Sample maps compare jet aircraft arrival and departure patterns at Seattle-Tacoma International Airport (SEA) under south flow conditions, one from March 22, 1989 (pre-4 Post) and one from March 31, 1991 (4 Post). Both charts plot all jet flight tracks between approximately 4:30–24:00 and 6:00–22:00 respectively, showing how flight paths over the Seattle region shifted between the two periods. The maps are annotated to highlight southbound departures and arrivals over Seattle, serving as visual evidence for noise impact analysis related to airport runway and procedure policy changes.

The Seattle-Tacoma International Airport Noise Budget, effective January 1, 1991, is a formal agreement designed to limit and gradually reduce overall aircraft noise levels at Sea-Tac Airport. It establishes a system of noise allocations assigned to individual passenger and cargo carriers, measured through defined noise exposure levels, with limits enforced on both a quarterly and annual basis. The agreement outlines key definitions and rules governing how noise is measured, allocated, and managed, including provisions for new entrants, international carriers, and government aircraft.

This 1990 agreement between the Port of Seattle, the City of SeaTac, and King County outlines plans to develop North SeaTac Park, including the construction of a new public Activity Center to replace the aging Sunset Activity Center. The Port agreed to contribute up to $2,953,600 toward development costs, while the County took responsibility for design, construction, and eventual demolition of the old facility. The agreement also includes provisions ensuring park uses remain compatible with Sea-Tac Airport operations, prohibiting any structures or activities that would interfere with air navigation or violate FAA regulations.

This document outlines the Final Package of Mediated Noise Abatement Actions for Seattle-Tacoma International Airport, agreed upon by the Mediation Committee on March 31, 1990. It covers a wide range of noise reduction measures, including nighttime flight restrictions, a noise remedy and insulation program for affected communities, improved flight corridor procedures, and a comprehensive noise management and monitoring system. According to technical consultants, full implementation of these agreements could reduce noise levels by approximately 50% in the communities surrounding the airport.

This 1990 document outlines a comprehensive package of noise abatement actions for Seattle-Tacoma International Airport, agreed upon by a Mediation Committee on March 31, 1990. It covers measures such as nighttime flight restrictions, soundproofing programs for nearby homes and public buildings, improved flight corridors, and a new noise management monitoring system. According to the technical consultant involved, full implementation of these agreements could reduce noise levels by approximately 50% for communities surrounding the airport.

This report summarizes Sea-Tac Airport noise hotline activity for the first quarter of 1990, showing call volumes compared to prior years (1986–1989). The majority of complaints were about departures to the north (57.2%) and were characterized as 'too loud' (57.5%), with Beacon Hill/Mt Baker generating the highest number of calls by zip code (377 total). Call volumes in early 1990 remained relatively low compared to the spike seen during the 1987 'Scatter Test' period.