Types of Signals on London Underground - TrainWeb
Some LU signals now use fibre optic displays or LEDs in place of lamps. To the Top of this Page Fig. 3: The diagram above shows miscellaneous types of signals used on London Underground including rail gap indicators, which illuminate if traction current …
Shunt Signals | District Dave's London Underground Site
Oct 3, 2009 · Make the signal heads ground/low level units using either individual aspect LEDs or a newly designed single multi aspect LED cluster and instead of a load bearing signal post erect a strong but lightweight fibre optic light pipe with single aspect as required for appropriate sighting.
LONDON UNDERGROUND SIGNALING - TrainWeb
Shunt signals have a horizontal red band rotate 45 degrees anti-clockwise to show "proceed". Where subsidiary signals are still in use they are again white but with two red lines across the middles and carry either "W" for a Warning Signal or "C" for a Calling On Signal.
optic shunt signals and electro-hydraulic point drives , but one of the biggest was the decision to change, mid-project, from relay interlockings to a solid state interlocking known as Westrace.
A Tube User's Travels: LU Signalling - Blogger
Oct 24, 2014 · LU (London Underground) predominantly uses 2-aspect signalling on its manually-driven lines; although 3-aspect (and some 4-aspect) signalling is used on the outer extremities of the Metropolitan line.
From the early 1930s, the use of short-range colour light signals for shunt moves continued to be the standard for those shunt moves being signalled from the same location as main line signals, while disc signals were normally used on the ground.
shunt signals on LT/LU | District Dave's London Underground Site
Mar 7, 2021 · shunt signals on LT/LU. Forum & Site Matters. Forum & Site Announcements. Forum Rules, Information & How To Do Tutorials . London Underground Lines. Bakerloo Line. ... Other London Underground & TfL Railways Matters. General Questions and Comments. Station-Related Matters. Quizzes and Surveys. Photography & Historical. LU Photography.
Central Line (LUL) Signalling - davros.org
The normal LU shunting signals and rail gap indicators are used, though the former are now all of the fibre-optic type. ATO. As already described, the ATO (Automatic Train Operation) system drives the train when in Automatic mode. The system takes information from two places: the on-train ATP systems and the Platform ATO Communications (PACs).
There are a number of features that have been added to the Underground’s signalling system to provide the operator with indications, safeguards or recovery assistance when something goes wrong. In the category of additional indications provided by the signal engineer is the Rail Gap Indicator (RGI). Figure 1: A superb photo of an illuminated
West Ken EB | District Dave's London Underground Site
Apr 24, 2017 · On the east at West Ken the shunt signal (WB31) that takes you into Lillie Bridge was changed to a fibre optic just wondering if anyone can point me in the right direction where there is a good photo