"Switch tower" redirects here. For the 1913 silent film, see The Switch Tower.
Class 66 at Bardon Hill signal box in Leicestershire, England. It is a Midland Railway signal box dating from 1899, although the original mechanical lever frame has been replaced by electrical switches. Seen here in 2009.
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. Signalling control was originally exercised via a decentralised network of control points that were known by a variety of names including signal box (International and British), interlocking tower (North America) and signal cabin (some railways e.g., GCR). Currently these decentralised systems are being consolidated into wide scale signalling centres or dispatch offices. Whatever the form, signalling control provides an interface between the human signal operator and the lineside signalling equipment. The technical apparatus used to control switches (points), signals and block systems is called interlocking.
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offices. Whatever the form, signallingcontrol provides an interface between the human signal operator and the lineside signalling equipment. The technical...
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...
colour-light signals using track circuit – or axle counter – block signalling. It is a development of the original absolute block signalling that is still...
The Signalling Connection Control Part (SCCP) is a network layer protocol that provides extended routing, flow control, segmentation, connection-orientation...
European railways, and railways outside of Europe. ETCS is the signalling and control component of the European Rail Traffic Management System (ERTMS)...
application if the driver does not react to a signal at danger. ATC systems tend to integrate various cab signalling technologies and they use more granular...
facing the same direction on either line. Where bidirectional signalling is installed, signals face in both directions on both tracks (sometimes known as...
Mechanical signalling in all States followed British practice using route signalling with slight differences between States. The basic running signal was the...
international cab signalling systems such as CAWS in Ireland, BACC in Italy, ALSN in Russia and the first generation Shinkansen signalling developed by Japan...
the conventional (national) signal system either by connecting to the lineside railway signal or to the signallingcontrol tower. Balises must be deployed...
compatible with the permitted speed allowed by signalling, including automatic stop at certain signal aspects. If it is not, ATP activates an emergency...
theory for block systems. Absolute block signalling Cab signalling Centralized traffic control Direct traffic control Radio Electronic Token Block Track warrant...
(1997), An Illustrated History of Signalling, Ian Allan, ISBN 0-7110-2551-7, p. 25 Vanns, M. A. (1995), Signalling in the Age of Steam, Ian Allan, ISBN 0-7110-2350-6...
Traffic lights, traffic signals, or stoplights – also known as robots in South Africa and Namibia – are signalling devices positioned at road intersections...
the input signal, the feedback is called negative feedback. As an example of negative feedback, the diagram might represent a cruise control system in...
Integrated Electronic Control Centre (IECC) was developed in the late 1980s by the British Rail Research Division for UK-based railway signalling centres, although...
crossing barriers that may trap vehicles or pedestrians on the tracks, while signalling trains to brake until the obstruction clears (however, they cannot prevent...
Absolute block signalling is a British signalling block system designed to ensure the safe operation of a railway by allowing only one train to occupy...
working. Bidirectional signalling is easier to implement when under the control of one signal box. Before power-operated signalling became widespread, track...
signals have to be costly. Because there are both mutual and conflicting interests in most animal signalling systems, a central problem in signalling...
aspect. Single and Double Green signals work the other way with Norwegian railway signalling and Danish railway signalling [da] and it would be unsafe for...
it the stops and accelerations required in standard and in signalled roundabouts. Signalling signage is with lights for human drivers and optionally wireless...
In railway signalling, an interlocking is an arrangement of signal apparatus that prevents conflicting movements through an arrangement of tracks such...
Automatic block signaling (ABS), spelled automatic block signalling or called track circuit block (TCB) in the UK, is a railroad communications system...
23 Diverted". NDTV. 18 June 2015. Retrieved 22 February 2019. "New signallingcontrol room at Itarsi becomes operational". The Economic Times. 21 July 2015...
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