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Old September 29th 10, 06:00 AM posted to uk.transport.london
Clive D. W. Feather[_2_] Clive D. W. Feather[_2_] is offline
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First recorded activity at LondonBanter: Mar 2009
Posts: 240
Default Tube Trains Sent On Collision Course

In message , Steve Fitzgerald
] wrote:
Does 'stop signal' mean 'signal capable of telling a train to stop',
ie anything that can go red, as opposed to route indicators etc?


Basically yes. Of course a route indicator will always have a stop
signal with it


Not so.

On LU, if a signal with a route indicator has a repeater in rear, the
repeater has a route indicator as well. This even applies to fog
repeaters.

Even on the "big railway", there's the Preliminary Junction Indicator,
which doesn't have to be associated with *any* signal, let alone one
capable of showing red (that is, it can stand alone or be placed above a
distant signal).

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