ohmygawd

High speed isn't a huge advantage for trains that have to stop at a lot of stations.

You're right - driverless trains can work very well. We've had them for 12 years in Copenhagen serving currently 22 stations, and they run smoothly with just 3 minutes between each train. In the first six months of operation back in 2002 there were a few problems (delays and such), but after that everything has been smooth (and no accidents to my knowledge).