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Sea-Tac Airport Aircraft Arrival Altitude Analysis

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Port of Seattle
Highline Forum
Highline Forum 2018

This May 2018 draft report by ESA analyzes changes in aircraft arrival altitudes at Seattle-Tacoma International Airport across 2013, 2015, and 2017, examining how those changes relate to noise exposure for surrounding communities. Key findings from earlier meetings indicate that while overall arrival numbers increased and traffic flow direction remained stable, there was a notable shift in runway use from center runways to right and left runways, along with changes in the mix of narrow-body and wide-body aircraft types serving the airport.

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ESA presentation to the Highline Forum dated May 23, 2018, analyzing aircraft arrival altitudes at Seattle-Tacoma International Airport (Sea-Tac Airport). Examines whether notable changes in arrival altitudes occurred between 2013, 2015, and 2017, including the relationship between aircraft altitude and noise exposure. Follows up on January 24th meeting findings regarding increased arrivals to SEA, runway use shifts from center runways to right and left runways, and changes in narrow body and wide body fleet mix between 2013 and 2017. Prepared by ESA (Steve Alverson) for deliberative purposes.

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