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Local door operation refers to a procedure and system in place on railway rolling stock on the United Kingdom railway network. It is where a single door on a train is operated by its train crew from a crew operated switch, often on a train door control panel operated by the train's guard. This differs from the Emergency Door Release or Egress ...
The time interval may be controlled by a level crossing predictor, an electronic device which is connected to the rails of a railroad track, and activates the crossing's warning devices (lights, bells, gates, etc.) at a consistent interval prior to the arrival of a train at a level crossing. [1]
In Germany, block posts are known as Blockstellen (abbreviation: Bk) and are defined as railway facilities on the open line that mark the end of a block section, as part of a block system. They usually have a home signal in each direction and on each running line. They are mainly found where the distance between two railway stations is greater ...
In the very early days of railways, men (originally called 'policemen', which is the origin of UK signalmen being referred to as "bob", "bobby" or "officer", when train-crew are speaking to them via a signal telephone) were employed to stand at intervals ("blocks") along the line with a stopwatch and use hand signals to inform train drivers ...
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.
Token instruments can be arranged for unattended operation, when they are operated by the train crew at intermediate crossing loops or at the terminus of the line. This system is widely found in Australia, where traffic density on many lines is low. In the UK it is known as the "No-signalman key token system".
Active Union Switch and Signal Co relay based CTC machine at THORN tower in Thorndale, Pennsylvania. Centralized traffic control (CTC) is a form of railway signalling that originated in North America. CTC consolidates train routing decisions that were previously carried out by local signal operators or the train crews
A level crossing is an intersection where a railway line crosses a road, path, or (in rare situations) airport runway, at the same level, [1] as opposed to the railway line or the road etc. crossing over or under using an overpass or tunnel.