I don't know much about trains, so translating this one confused me. I looked it up, and apparently Conductors are not the ones that drive the train. I don't know if I'm the only one with that misconception, but...
A conductor or guard is a train crew member responsible for operational and safety duties that do not involve actual operation of the train/locomotive.
A train driver, engine driver or locomotive driver, commonly known as an engineer in the United States and Canada, and also as a locomotive handler, locomotive operator or motorman, is a person who drives a train.