Roberts worked as a train dispatcher and farmer. This information was not passed on to the train dispatcher. The train dispatcher can activate it from the signal box. Neither Bess nor Bess Siding blocks may be occupied without authority from the train dispatcher. Her father was a train dispatcher for the Chicago and Northwestern Railroad. The train dispatcher could also control the trackside signals governing the movement of trains. He later joined the Kansas City Southern Railway in Shreveport, Louisiana, as a train dispatcher. In Canada a train dispatcher is known as a rail traffic controller (RTC). A train dispatcher at the signalling centre in Bad Aibling had given a wrong instruction. Train Dispatcher is a train simulator of centralized traffic control (CTC) systems. In Canada the train dispatcher is known as the rail traffic controller (RTC).