This has a redundant driver IIRC, or at the very least, capacity for one. Paris Metro has two fully driverless lines, one since 1998.
There are automated long distance trains in places like Australia too - Rio Tinto.
DLR has been fully automated since 1987 as I recall, I think they usually had a member of staff operating the doors but no one up front, presumably the door operator could stop the train in an emergency but they were moving through the train checking tickets the last time I used one