Emily Badger captions what intersections would look like in a world dominated by driverless cars:
Right now, you may wind up sitting at a red light for 45 seconds even though no one is passing through the green light in the opposite direction. But you don’t have to do that in a world where traffic flows according to computer communication instead of the systems that have been built with human behavior in mind. … Because of this, we won’t need traffic lights at all (or stop signs, for that matter). Traffic will constantly flow, and at a rate that would probably unnerve the average human driver.