Repetitive tasks are exactly what pointing and calling helps with. The intent is to prevent the brain from going on autopilot for a task that happens exactly the same way 99.9% of the time, in order to prevent disasters that last 0.1% of the time.
Traffic lights are a lot more random (and therefore mentally engaging) than the types of things train conductors are pointing and calling.
Traffic lights are a lot more random (and therefore mentally engaging) than the types of things train conductors are pointing and calling.
An automotive equivalent of a situation that would benefit from pointing and calling is something like this: https://www.consumerreports.org/car-safety/guide-to-rear-sea...
eg.: "Car parked, ignition off, get child"