Driverless trains are actually a pretty new thing, being on tracks is not as set/forget as people assume.
If you mean "transportation where I'm not driving" then sure but taxis also fit that bill.
If you mean "transportation where I'm not driving" then sure but taxis also fit that bill.
Today there are 2 fully automated ones and one other mixing manual and automated.
The sofware was developped by Matra transport international (now Siemens Mobility).
It can even dynamically add/remove trains in service to best match the demand !
It also apparently uses a 48 bit cpu architecture.
[0] https://fr.m.wikipedia.org/wiki/Syst%C3%A8me_d%27automatisat...