This 2018 Port of Seattle briefing outlines near-term traffic mitigation strategies for Sea-Tac Airport's increasingly congested roadway system, which was originally designed for 5 million annual passengers but now handles far greater volumes. Key measures include a Traffic Mitigation Plan that restricts access to southbound airport freeways during peak periods, and a new TNC 'Re-Match' program that allows rideshare drivers who have just dropped off passengers to immediately pick up new ones without returning to the remote 160th Street holding lot. The Re-Match pilot reduced passenger wait times by one-third and eliminated an estimated 30,000 deadheading trips in December 2017, while also reducing expressway congestion near the terminal.Open full document
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This briefing memo to the Port of Seattle Executive Director outlines near-term operational mitigations for traffic congestion on Sea-Tac Airport’s roadway system, which has been strained by 40% passenger growth between 2012 and 2017. The memo details the Traffic Mitigation Plan (TMP) and a pilot program for TNC Re-Match procedures implemented in November 2017, which reduced passenger wait times by a third and avoided approximately 30,000 deadheading trips in December. Staff plans to implement a garage south entry program in early April 2018 to further reduce congestion and improve TNC pickup efficiency.