‘The DOT has an interactive map that shows various transportation noise levels for any area in the U.S. It’s imperfect: anyone who lives in LA can tell you that the dark gray areas are NOT actually < 50db, but if you’re planning on moving to an area, it can help you figure out road, airport and train noise, which can be very difficult for noise sensitive people to live with.” Data currently indicates National Transportation Noise in the U.S. for 2016, 2018 and 2020.