[refurb]

Not true at all.

Currently live in a dense city in Asia. Remove all the personal vehicles and it would still be noisy as hell. Just business vehicles delivering food, removing trash, etc. are a decent amount of noise. The high building density reflects and concentrates the noise.

Then add in construction, road work. Even the worker moving trash bins around by hand every evening is loud.

Pure fantasy to have dense city living an little noise.