TagRunways(144)

The ISBRG One Departure is an RNAV instrument departure procedure at Seattle-Tacoma International Airport (SEA) available only between 10 PM and 6 AM local time, designed to route departing aircraft on specific northwestward flight paths. Aircraft departing runways 34L, 34C, and 34R follow assigned headings and waypoints—climbing to 940 feet, then proceeding through fixes such as WUREL, ATOME, BREMM, and ISBRG—while maintaining a top altitude of 9,000 feet. The procedure's nighttime-only restriction and structured routing reflect noise-abatement considerations for communities surrounding the airport.

This January 2018 progress update from ESA presents an analysis of aircraft arrivals at Seattle-Tacoma International Airport (SEA), examining whether notable changes occurred between 2013, 2015, and 2017. The study uses radar flight track data from July and December of each year to compare fleet mix, runway usage, and aircraft altitudes at six nautical miles from the airport. Key questions addressed include whether arrival numbers increased, whether traffic flow patterns shifted between north and south flow, and whether arriving aircraft were flying at different altitudes over the study period.

This map depicts the area surrounding Seattle-Tacoma International Airport, showing the airport's runway layout (including runways 16R, 16C, and 16L) alongside nearby neighborhoods in Burien and SeaTac. Two overlaid flight-path or noise-contour corridors (shown in teal/green and gold) arc across the surrounding residential and parkland areas, illustrating the geographic extent of aircraft noise impact. Notable landmarks within the affected area include Glacier High School, Sunset Park, and the North SeaTac Softball Fields, highlighting the communities exposed to airport-related noise.

This aerial map depicts Seattle-Tacoma International Airport (Sea-Tac) and its surrounding communities of Burien and SeaTac, showing the airport's runway layout including runways 34L and 34C, along with the local road network and key routes such as SR 99 and SR 509. The map highlights the ST Light Rail corridor and major access roads serving the airport, providing geographic context for understanding flight paths and noise exposure areas in the region. It serves as a reference for analyzing the relationship between airport operations and the residential and commercial areas situated beneath approach and departure corridors.

This 2017 technical memorandum, prepared by Leigh Fisher for the Port of Seattle, outlines development alternatives for Seattle-Tacoma International Airport as part of a Sustainable Airport Master Plan. It covers proposed changes to the airfield, passenger terminals, ground access, parking, air cargo facilities, and general aviation. The document evaluates options such as runway relocations, new taxiway configurations, and terminal expansions to address capacity, safety compliance, and long-term growth needs.

This FAA notice (effective August 2015) updates the rules for how air traffic controllers manage aircraft making simultaneous approaches to parallel runways. It introduces new diagonal radar separation distances between aircraft based on how far apart the runway centerlines are, ranging from 1 mile of separation for runways 2,500–3,600 feet apart to 2 miles for runways 4,301–9,000 feet apart. While focused on controller procedures rather than noise policy directly, these standards govern how closely aircraft can be spaced during parallel runway approaches, which is relevant to arrival patterns affecting communities near airports like Sea-Tac.