Headshunt: Difference between revisions
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==Run-round== |
==Run-round== |
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[[Image:Headshunt.png|thumb|450px|right|Sketch of a headshunt and run-round loop]] |
[[Image:Headshunt.png|thumb|450px|right|Sketch of a headshunt and run-round loop]] |
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A run-around loop (or run-round loop) is a track arrangement that enables a locomotive to attach to the opposite end of the train. This process is known as "running round a train"<ref>{{Ellis' Railway Encyclopaedia|page=307}}</ref>. It is commonly performed to haul wagons onto a siding, or at a |
A run-around loop (or run-round loop) is a track arrangement that enables a locomotive to attach to the opposite end of the train. This process is known as "running round a train"<ref>{{Ellis' Railway Encyclopaedia|page=307}}</ref>. It is commonly performed to haul wagons onto a siding, or at a terminal station to prepare for a return journey<ref>{{Railway Dictionary|page=298}}</ref>. |
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Because of the requirement for dedicated track, for railway staff to detach and reattach the locomotive at track level, and with the increase in [[Push-pull train|push-pull]] passenger services, the manoeuvre is no longer frequently performed.{{fact}} |
Because of the requirement for dedicated track, for railway staff to detach and reattach the locomotive at track level, and with the increase in [[Push-pull train|push-pull]] passenger services, the manoeuvre is no longer frequently performed.{{fact}} |
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Revision as of 20:14, 26 August 2009
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A headshunt (US: escape track) is a short length of track, provided to release locomotives at terminal platforms, or to allow shunting to take place clear of main lines.
Terminal Headshunts
A terminal headshunt is a short length of track that allows a locomotive to uncouple from its train, move forward, and then run back past it on a parallel track. Such headshunts are typically installed at a terminal station to allow the locomotive of an arriving train to move to the opposite end of (in railway parlance, 'run around') its train, so that it can then haul the same train out of the station in the other direction.
Shunting neck
The term headshunt may also refer to shunting neck or shunt spur: a short length of track laid parallel to the main line for the purpose of allowing a train to shunt back into a siding or rail yard without occupying the main running-line.
Run-round
A run-around loop (or run-round loop) is a track arrangement that enables a locomotive to attach to the opposite end of the train. This process is known as "running round a train"[1]. It is commonly performed to haul wagons onto a siding, or at a terminal station to prepare for a return journey[2].
Because of the requirement for dedicated track, for railway staff to detach and reattach the locomotive at track level, and with the increase in push-pull passenger services, the manoeuvre is no longer frequently performed.[citation needed]
References
- ^ Ellis, Iain (2006). Ellis' British Railway Engineering Encyclopaedia. Lulu.com. p. 307. ISBN 978-1-8472-8643-7.
- ^ Jackson, Alan A. (2006). The Railway Dictionary (4th ed.). Sutton Publishing Ltd. p. 298. ISBN 0-7509-4218-5.
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