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Railway signalling (BE), or railroad signaling (AE), is a system used to control the movement of railway traffic. Trains move on fixed rails , making them uniquely susceptible to collision . This susceptibility is exacerbated by the enormous weight and inertia of a train, which makes it difficult to quickly stop when encountering an obstacle.
In the first year of its existence it was concerned only with imparting training to Apprentices JE( junior engineers) Signal and Apprentice JE (junior engineers) Telecommunication, but subsequently, in view of the rapid developments in the field of Signaling and Telecommunication, several specialised technical training needs of Officers and Staff of Signal and Telecommunication Department in ...
In the simplest case with three signal boxes on a stretch of line without junctions, the central of the three boxes will receive a request for a train to be accepted, the signaller will set any relevant points (turnouts) and signals and signal acceptance, and then request acceptance by the next signal box along the line.
A rail break between the insulated rail joint and the track circuit feed wiring would not be detected. Failure modes that result in an incorrect "track clear" signal (known usually in North America as a "false clear") may allow a train to enter an occupied block, creating the risk of a collision. Wheel scale and short trains may also be a problem.
On a rail transport system, signalling control is the process by which control is exercised over train movements by way of railway signals and block systems to ensure that trains operate safely, over the correct route and to the proper timetable.
Download as PDF; Printable version; In other projects ... Pages relating to railway signals and signal-related devices, technology and terminology. Subcategories.
Signalling in the UK uses route signalling. Most railway systems around the world, however, use speed signalling. Under route signalling, the driver is informed which route has been set by an illuminated Junction Indicator mounted on the signal post. The signal will display a restrictive aspect to make the driver reduce the train's speed.
So first signal in track #1 Up will be signal number 1-1 following signal will be 1–3, 1-5 and so on. In opposite Down direction of same track #1 number 2-2, 2–4, 2-6 and so on will be used. Signals on Loop tracks (Siding) or Platform tracks are also follow same rules, since usually only 1 starter signal exists on those tracks, the signal ...