Anonymous wrote:This is a very cool tool that I used.
https://webtrak.emsbk.com/iad
It provides a (delayed) feed from a noise sensor network at multiple locations in Loudoun, combined with aircraft flight data. You can see the decibels go up and down as planes go over. Obviously it shows flight paths as well, and for each flight when you hover your mouse over it, you see the flight number, aircraft type, origination/destination and its altitude. You can replay historical data as well, so you could look at things during the night.
Then you can google the decibel levels and see what they are comparable to, like this chart:
https://www.industrialnoisecontrol.com/comparative-noise-examples.htm