In railway signalling, a moving block is a signalling block system under which the "blocks", or safe zones around trains, are defined in real time by computers. That requires both the knowledge of the exact location and the speed of all trains at any given time, as well as continual communication between the central signalling system and the signalling system in the train cab.
In railway signalling, a moving block is a signalling block system under which the "blocks", or safe zones around trains, are defined in real time by computers. That requires both the knowledge of the exact location and the speed of all trains at any given time, as well as continual communication between the central signalling system and the signalling system in the train cab.
Source: Wikipedia "Moving block" · CC BY-SA 4.0
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