This April 2018 Port of Seattle briefing examines traffic congestion challenges at Seattle-Tacoma International Airport (SEA), whose roadway system was originally designed in 1968 for just 5 million annual passengers. It reviews how a major road realignment in 2008 for Light Rail helped reduce gridlock by removing return-to-terminal loop ramps and cutting recirculating vehicle traffic by 40%. The briefing emphasizes that managing landside access at SEA requires a comprehensive, long-term strategic policy to handle the airport's growing transportation demands.Open full document
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A Port of Seattle briefing presented to the commission on April 10, 2018, addressing the airport drives traffic enhancement initiative at Sea-Tac Airport. The document covers background on the roadway system originally designed in 1968 for 5 million annual passengers, and subsequent modifications made in 2008 for light rail realignment. It emphasizes that landside access is critical to SEA and requires comprehensive long-term strategic policy.