In An End to Parking? Clive Thompson writes about an aspect of self-driving cars that I haven’t seen before: the impact it will have on urban design. In particular, the amount of space we need for parking should change dramatically:

Robot cars could also drive much more closely to one another, packing far more vehicles onto a street. […]

What’s more, they’d never need to park. At the University of Texas-Austin, Kara Kockelman—a professor of transportation engineering—modeled the impact of autonomous ride-sharing vehicles and found that each one could replace up to a dozen regular cars. The robocars could drive all day long, stopping only to refuel or for maintenance; at night, when there was less demand, they could drive out to a remote parking spot on the outskirts of town. The upshot, Kockelman figures, is that if you shifted the entire city to autonomous cars, it would need a staggering 90 percent less parking than it needs today.