Those innovations sound like you could be talking about São Paulo as well (they've done all those things). One of the proposals I once heard from a São Paulo ci

Those innovations sound like you could be talking about São Paulo as well (they've done all those things). One of the proposals I once heard from a São Paulo city planner was for more people to telecommute. If more companies allow for remote work, the streets don't need to be (as) congested. But I'm skeptical about the long-term success of such a move. What would work a lot better, with the current set-up, is a massive carpooling scheme, since SP transit stats show most automobile trips are single-occupant (IIRC). What would work even better than that is another city-planning 'trick' - making as many neighborhoods as self-sufficient as possible (work/shop/commune near where you already live).