Soundproofing from streetcars (Toronto)?

Any Torontonians on this subreddit? I want to know how to BLOCK the noise coming from these noisy streetcars. It is a low vibrational sound that is very very hard to soundproof and I've tried everything from contacting TTC and inspecting our windows. Nothing is working. The problem is the noise is entering through the walls. Anyone would like to give me some suggestions? Thanks