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.Open full document
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A progress update presentation prepared by ESA for Seattle-Tacoma International Airport analyzing changes in aircraft arrivals over a five-year period. The analysis uses radar flight track data from July and December 2013, 2015, and 2017 to evaluate changes in fleet mix, runway usage, traffic flow, and average aircraft altitudes. Key questions include whether notable increases in arrivals, changes in traffic flow, runway use differences, fleet mix changes, and altitude changes occurred between 2013 and 2017.