Railway locomotive engineers transport passengers/freight on railways. They operate communication systems to communicate with train crews/railway traffic controllers to ensure that trains operate safely and meet their schedules.
Yard locomotive engineers switch, couple, and uncouple cars for loading/unloading goods within the yards of railway, industrial, and other organizations.
Railway conductors co-ordinate and supervise the activities of passenger/freight crew members, except for railway locomotive engineers, to ensure that trains operate according to schedules, orders, and operating rules. They also collect fares, announce train stops, and answer passengers' questions.
Railway brakemen/women check train brakes and other systems/equipment prior to train runs and assist railway conductors in activities en route.