From what I've seen living in Toronto, NYC and Montreal, streets with nicer houses/apartments tend to have more trees. Those neighborhoods also tend to be quiet

From what I've seen living in Toronto, NYC and Montreal, streets with nicer houses/apartments tend to have more trees. Those neighborhoods also tend to be quieter. Take the example of NYC. The Upper East Side and Clinton Hill are two neighborhoods with a relatively large number of trees. Both of those neighborhoods are two of the most expensive and quiet neighborhoods in Manhattan/Brooklyn. So it could just be that quiet streets and nice houses calm us down. But then again, maybe having more trees is what causes neighborhoods to be nice and quiet. As far as I can tell, it could go either way.