Monday, March 27, 2017

Aircraft Noise Map

I know some people have been complaining about increased aircraft noise since the FAA rolled out its NextGen program, which rerouted a number of flights leaving SFO in order to save fuel and make airport operations more efficient. Some flights that used to fly over the north end of Pacifica to the ocean before turning south, now head south over the east side of Pacifica. That means less noise for those at the north end of town and in crab boats out on the water, but more noise for people under the new flight path.

I came across the website below that's meant to show which areas are most affected by aircraft noise. You can click on the image for a larger image, or click on the link below the picture to get to the National Transportation Noise Map website.

National Transportation Noise Map

It seems like it's gotten quieter at my house in East Sharp Park since the NextGen program started, and it would have been interesting to see how the above map compared to one from several years ago. I'm wondering if the maps are the result of actual measurements, or simply based on models that calculate what the noise should be at ground level, without taking into account factors like noise being reflected off of hills.

Posted by Steve Sinai

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