Duties Today
The principles of British-style railway signalling have changed little since the Victorian era and early 20th century. Modern technology has generally reduced the labour required per train movement. In many cases, a switch, button or computer command is used to alter the lie of points and control signals. Although many classic mechanical signal boxes remain in use, these are gradually being replaced by modern power signalling systems on most railways. The heartlands of British-style railway signalling could be said to be the United Kingdom, New South Wales, Victoria, Queensland, India and South Africa.
The signaller's main duty is to ensure trains get from A to B safely and to time. The classic Train Register Book remains in use at most older installations, with train describers and Automatic Train Recording taking its place in more modern power signalling schemes. All trains are listed in a computer system in the UK in time order. This system is known as TRUST. Any train can be found on here together with its schedule and route. If a train is late it is up to the signaller to ascertain in what order the trains should run, known as regulating trains.
Read more about this topic: Signalman (rail)
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