>...but it won't be with the current infrastructure... slowly phase out driver-only cars with self-driving cars/lanes.

Upvoted!

I've posted it before and I'll post it again: what advantages does driverless car-based transportation infrastructure offer over a rail system of the same scale? I am genuinely interested to hear counter arguments since, to my mind, well planned/maintained rail systems can better leverage centrally generated power, have better driver (conductor) : passenger ratios, are easier to maintain in aggregate (ie. tracks vs. roads, total number of train cars < total number of motor vehicles, etc.), and so forth.

What am I missing?