Re: I suspect
"Flashy demo graphics aside, that's a solved problem. If you go to any city with a metro system and elevators to street level, they're called lift doors."
But those flashy graphics show a car driving onto a lift platform at surface level, as part of the road, then dropping down to the tunnels. That's going to be a hell of good lift "door" that has to slide out and rise to replace the section of road that just disappeared.
Biting the hand that feeds IT
