My neighborhood is in a white/non-colored zone and I still think it's too loud because we can hear the highway most...

My neighborhood is in a white/non-colored zone and I still think it's too loud because we can hear the highway most days. Surprisingly, the state park I live across the street from is in an orange/pinkish zone. Probably due to the airport just to the south of it and the flights constantly flying over.
http://www.npr.org/sections/thetwo-way/2017/03/23/521227214/how-noisy-is-your-neighborhood-now-theres-a-map-for-that