A
train driver,
engine driver,
engineman or
locomotive driver, commonly known as an
engineer in the United States and Canada, and also as a
locomotive handler,
locomotive operator,
train operator, or
motorman, is a person who drives a train or a locomotive. The driver is in charge of, and responsible for the mechanical operation of the train, train speed, and all train handling. In American English, a
hostler moves engines around train yards, but does not take them out on the normal tracks; the British English equivalent is a
shunter.