I skimmed both of those and I don't see how you're getting the claim that 100 miles out an airliner is going to be at FL50-60. The noise estimations in your fi

I skimmed both of those and I don't see how you're getting the claim that 100 miles out an airliner is going to be at FL50-60. The noise estimations in your first link show the estimated noise in Ens which is 18 miles out and directly below the approach path at 40 dB, and for a more pathological case in Wezep 20 miles out at 45 dB. For reference that's somewhere between "noise at the library" and "quiet suburb"[1]. If you search for "Projectie Route" you can see graphs showing that the estimated approach and departure paths, planes coming in for landing are at FL60 5-10 miles out, planes departing are climbing past FL30 10 miles out. I'm not dismissing the fact that some people in close by bedroom communities are going to be hearing airplanes regularly, but this claim that it's going to be an issue for anyone even 20 miles out is nonsense, let alone 100 miles out. Ghent in Belgium is around 100 miles from Amsterdam, planes just crossing the Dutch-Belgian border aren't at FL50 as if they were on their final approach to Schiphol. 1. http://www.industrialnoisecontrol.com/comparative-noise-examples.htm http://www.industrialnoisecontrol.com/comparative-noise-exam...