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Signalling on London Underground

Index

This is a series of illustrated pages on LU signalling. There are descriptions of the various types of signals and signalling used on London Underground with diagrams and photos included throughout.


   Automatic Signalling - the basic concepts of the traditional London Underground signalling system.

  Semi Automatic Signalling - Detail on controlled signals.

  Signalling Types - diagrams and photos of the different signals seen all over London Underground.

  Speed Control Signalling - special signalling used to control the speed of trains at critical locations.

  Victoria Line ATO - details of the system used on the first automatic railway in the world, including modifications.

   Signalling Trainstop Photos - showing examples of the train protection system used on non-ATO lines

  Signalling Sequence Photos - showing how signal changes with the passage of a train.

  Point Machine Photos - showing details of the standard LU air operated point machine.

  Speed Control Photos - showing how the driver sees the approach to a station with a speed control signal.

  Calling On and Warning Signals - This is historical really, about signals which used to be used for coupling and uncoupling trains in service but which can still be seen in one or two locations.

  Route & Track Plans - A page with links to track and signalling diagrams of the Northern, Victoria and Epping - Ongar lines, plus some site diagrams of particular locations.

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Last updated 25th November 2009  © Copyright Tubeprune 2001 - 2009.
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