That&#x27;s sort of what Google is doing with their little fully-autonomous 25MPH car.  Senior communities will be full of those things in a few years.<p>Would special roads or guideways for those help?  Possibly.  Parking garages dedicated to those things are likely. They can be parked several deep because the blocking cars can be asked to move.<p>The future of self-driving cars has more to do with where they go when not in use than what they do while carrying passengers.