• Signal engineers to begin train runs, stop trains, or change speed, using telecommunications equipment or hand signals.
• Confer with engineers regarding train routes, timetables, and cargoes, and to discuss alternative routes when there are rail defects or obstructions.
• Receive information regarding train or rail problems from dispatchers or from electronic monitoring devices.
• Receive instructions from dispatchers regarding trains' routes, timetables, and cargoes.
• Direct and instruct workers engaged in yard activities, such as switching tracks, coupling and uncoupling cars, and routing inbound and outbound traffic.
• Operate controls to activate track switches and traffic signals.
• Keep records of the contents and destination of each train car, and make sure that cars are added or removed at proper points on routes.
• Arrange for the removal of defective cars from trains at stations or stops.