How do other cities around the world make this work and make it safe then?
In other words a no difference in personal safety between a driver only or driver and guard operation.
I’m not aware of any evidence of reduced safety in any category after introducing DOO, and if there as I suspect unions would be screaming from the hills. The only measurable impact I’ve seen is on accessibility (which doesnt mean that’s not a consideration)
Note: I do take the train daily, just I live in Tokyo