Signalman (Rail)

High Quality Content by WIKIPEDIA articles! A signalman or signaller is an employee of a railway transport network who operates the points and signals from a signal box in order to control the movement of trains. The first signalmen, originally called Railway Policemen, were employed in the early 1800s and used flags to communicate with each other and train drivers, and hourglasses for the purpose of Time Interval Working between stations. It was a signalman's duty to check each train that passed his signal box, looking for the red tail lamp exhibited on the trailing vehicle, the sighting of which confirmed that the train was still complete, and thus the section was clear.... Mehr