[Germanika]

A) also doesn't work unless all other road users (bikes, scooters, skateboards, pedestrians, etc.) are also banned from the roads. The other option is limiting the autonomous cars to tunnels or dedicated tracks, but then we're just reinventing trains again.

[kajecounterhack]

L4 is basically reinventing trains, with invisible tracks in the form of high-def maps. Even that is just so hard ;_;

[foobar2021]

Given how many people you see driving down the road staring at their phones, reinvention of trains is probably still a good thing for society.

[Yoric]

Good point. On the other hand, if we could encourage people to use actual trains, that would be much better for the environment.