[jacquesm]

You'd need a lot of exit ramps going up though, and it would be pretty tricky for emergency services to reach the places they need to go to. Personally I'm a big fan of reducing through traffic as much as possible and banning vehicles other than for the disabled and emergency services from city cores.

[andrekandre]

yea, i think logistically its super hard and most likely not practical at all, but it would be amazing if possible...