Imagine if, in high density areas like Manhattan, cars were simply not allowed. Wow. The thought of how pleasant Manhattan would become if only cabs + busses + delivery trucks + ambulances were allowed makes me almost too happy. Would be so awesome.
Busses and delivery trucks are the most noisy and polluting! That doesn’t seem like the panacea you suggest.
https://www.iwillride.org/what-200-people-look-like-driving-...