Interestingly, this seems to converge towards traditional ways of mass transit, like trains. Except for two crucial differences with regards to the US: Insane connectivity, seeing how good the highway system is in the US, and of course the fact that once you get off the freeway, you still have a car to navigate through the vast suburbia (even if you have to do it manually). I wonder if this will be the replacement for good mass transit in the US, at least for now.