Signalman

A Signalman is a person who historically made signals using flags and light. In modern times the role of Signalmen has evolved and now usually uses electronic communication equipment. Signalmen usually work in rail transport networks, armed forces, or construction (to direct heavy equipment such as cranes). Many armed forces now use the rank of Signaller instead.

Other articles related to "signalman":

Clayton Tunnel - Accident
... was merely a signal that was operated by the signalman on duty but that returned to 'danger' once the train had passed, by means of a treadle ... Clayton Tunnel had such a signal at each end, and it was the failure of the signalman to ensure that the signal had returned to danger that led to the worst ever accident on that line ... Having signalled one train correctly, the signalman at the southern portal manually returned the signal to danger too late for the second train, but was unaware that his attempts to alert ...
Treadle (railway) - Accident
... was merely a signal that was operated by the signalman but returned to 'danger' once the train had passed, by means of a treadle ... the signal had failed to return to stop with another train approaching close behind, the signalman was forced to wave a red flag at the oncoming train without ... After wrongly assuming the train had then left the tunnel, the signalman allowed a further train to enter the tunnel, where it collided with the first which had ...
Signalman (comics) - Fictional Character Biography
... Becoming the Signalman, he went on a spectacular crime spree using those signs and symbols as his motif ... unseen until 1976, when he resumed his Signalman guise in Detective Comics #466 ... In the years since then, Signalman has also been a member of the Secret Society of Super Villains and, in that capacity, did battle with the Justice League and Justice Society ...