The NextGen impacts at Vashon Island, under the HAWKZ RNAV arrival route, are terrible. This early-November presentation shows much has been learned by pushing past the roadblocks, getting the data, and framing the problems. Just 15 slides, and far more informative than the dog-and-pony shows FAA, POS and other ‘aviation stakeholders’ produce. Excellent work by David!
Click on the image below for a scrollable view; the PDF file may be downloaded.
Especially, look at the slide on page 10. Flights are now substantially lower over Puget Sound than they were, prior to the start of HAWKZ. The plan was to turn them down the center of Elliott Bay (the core idea in the Greener Skies program), thus there was a need to jam them lower and sooner. But, Elliott Bay is almost never used, because congestion at SeaTac is simply too high; instead, the lower and slower (and thus louder!) flights just cruise on north, burying Queen Anne, Ballard, Shoreline, Edmonds, and sometimes even Everett with more repetitive noise.
Ponder this, too: why are FAA and POS failing to locate HAWKZ arrivals mid-channel, between Three Tree Point and Vashon Island? Might it have something to do with the number of FAA/POS families living along the shorelines west and north of Burien? This could easily be done, using GPS waypoints that can minimize impacts on neighborhoods. NextGen technologies can be used to improve the environment, not just destroy communities in the name of air commerce.