I've lived in the Boston area for a long time, and I'm surprised that it's cited as the noisiest US city. I have no formal reason why; it just doesn't seem like

I've lived in the Boston area for a long time, and I'm surprised that it's cited as the noisiest US city. I have no formal reason why; it just doesn't seem like an unusually noisy city. On a related topic, it's very hard to quantify noise exposure. We live on a hill in a northern suburb, and one of the biggest sources of our noise is the north-south highway 2.5 miles to the west. If the wind is from the west, I can aurally track trucks going up and down the highway. If not, it may be inaudible.