Changing the way cars function inside the city is only part of what would need to change. Near me things just aren't laid out well for pedestrians. It would take me about an hour to walk to the nearest grocery store (not counting corner stores, because all they sell is junk food). Biking should be much shorter, though I can't say I've ever tried. We would need to stop the trend of having a small number of large stores and move back towards having a large number of smaller stores. That comes with it's own trade offs in planning an efficient city.
The other thing worth mentioning is that bikes/pedestrians can go anywhere cars can, but the opposite is not true. If we made streets that were "bike only" cars wouldn't be able to access them. Cars are on a pedestal not only because of convenience and speed, but because they're the lowest common denominator.
The other thing worth mentioning is that bikes/pedestrians can go anywhere cars can, but the opposite is not true. If we made streets that were "bike only" cars wouldn't be able to access them. Cars are on a pedestal not only because of convenience and speed, but because they're the lowest common denominator.