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.Open full document
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FAA notice implementing new procedures for simultaneous parallel approach operations, including updated dependent separation standards, runway centerline spacing requirements, and elimination of high update radar requirements for Precision Runway Monitor procedures. The notice establishes minimum radar separation requirements based on runway centerline distances.
