@33b0a4fd Well, yeah, but that works a lot better in places where the roads descend from ancient footpaths. But in cities built around cars, it would just be a nightmare.
@b2d9fca2 But the cities that were "built around ancient footpaths" adapted to cars, and are now starting to transition back. Amsterdam was a deeply car-based city until they decided consciously to make a change 30 years ago. There's no reason why cities designed around cars can't adapt to a less car-based existence - just look at all the space the roads take up! That offers lots of flexibility. We just need to try harder and to think and experiment more.