Self-driving taxi
A handful of cities and states are moving to prepare for self-driving vehicles, but planning the road ahead isn’t easy. (Yuya Shino/Reuters)

Washington Post staffer Matt McFarland reports on the phenomenon that cities and states know self-driving cars are coming, but it's tough to plan for a future that's yet to be invented.

Autonomous vehicles may have been considered a goofy idea or a lark a couple of years ago, are actually on the way to hitting the road much faster than most of us could have imagined, ... and in force. McFarland writes about some of the implications and scenarios one may encounter as a result of a re-mapped automotive future:

Will streets suddenly be more crowded? Will the shift to urban living reverse? Some or all parking spaces may free up. We might all gravitate toward small one-person pods, or sell our homes and live in self-driving Winnebagos. Lanes on highways could be narrowed, offering the chance to add lanes and relieve traffic.

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