I just looked that up (Atlanta) on https://noise-map.com/ and man, that's way not enough zoning tricking in my book. Not that it's much different in other cities (or countries).
Also, the map you're looking at there is relatively low resolution. I would suggest looking at it in https://maps.dot.gov/BTS/NationalTransportationNoiseMap/; make sure to switch the "Modes:" to "All Modes"