You keep roads but aside from a few arteries, allow only bicycles, pedestrians, emergency vehicles, and things like dropping off/picking up passengers with disa

You keep roads but aside from a few arteries, allow only bicycles, pedestrians, emergency vehicles, and things like dropping off/picking up passengers with disabilities. If the roads are closed to non-emergency traffic, fire trucks and ambulances get where they need to be faster than if the roads are clogged with personal vehicles.