- Checks loading of tubs and carriages, and informs driver of load distribution and any special features of route.
- Assists drivers in the operation of diesel, diesel-electric, electric and steam locomotives.
- Examines shunting instructions, uncouples wagons and coaches, guides movement of carriages using manual points and wagon breaks, links-up carriages, ensures security of couplings and reconnects brake and heating systems.
- Operates signals and opens and closes barriers at level crossings as required.
- Examines schedules and decides priority of movement of trains, monitors movement of trains and issues instructions to drivers, signal operatives and level crossing keepers.
- Provides crews for breakdown trains, allocates relief and replacement crews as necessary, keeps crews informed of any line repairs or restrictions, and checks train running times for punctuality.