Where I live(1), the metro service has completely staff-free trains. No drivers, no on-train conductors ready to press a "close doors" button, nothing.
Since 1983.
(Yeah, yeah, I know, there's probably someone watching on CCTV, but you know what I'm saying. And the trains show evidence of having manual controls locked away under panels.)
The trams (strictly speaking, metre gauge light rail because they are mostly segregated from the roads) have human drivers, but they have to cross roads laden with cars and pedestrians and without crossing signals of any kind.
(1) Lille, France.
Biting the hand that feeds IT
