Will we drive on underground automated highways?

If life is a highway, get ready to take a long subterranean trip. Underground automated highways will allow drivers to relax while self-driving vehicles steer, and tunnels could help conserve land.

This is exactly the theory behind the creation of an underground automated highway (UAH). Need to travel cross-country to visit your parents? You would simply drive down into the nearest UAH… » Full Story on HowStuffWorks