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08/09/2018 11:30:00

Handling of Signal Lamp Failures

You are here: Home > Forum > General > General questions, comments, and issues > Handling of Signal Lamp Failures

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Handling of Signal Lamp Failures 22/02/2018 at 08:56 #106066
87 posts
I have a situation where a signal has failed. I observed that the G and R aspect have failed, it can display Y and YY.
I could just talk the train past both the failure, and the proceeding.

However if I hold the signal 2 in advance at the most restrictive aspect and after the train has passed the "failed" signal release the hold. The train will slow a bit but not need to halt.

My question, would this be considered or is it absolutely forbidden.

some screen shots attached to explain the situation.
[attachment=9326]Screen Shot 2018-02-22 at 7.30.31 pm.png[/attachment]

[attachment=9327]Screen Shot 2018-02-22 at 7.34.09 pm.png[/attachment]

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Handling of Signal Lamp Failures 22/02/2018 at 09:09 #106067
969 posts
Not forbidden in the slightest. Signalman would likely hold a preceding signal at danger in order to prevent the driver seeing any changes of aspect while they set the failed signal to the right aspect.

Some of the more modern signalling systems the technicians would be able to restrict the failed signal to showing certain aspects only, so long as the signalman held trains back before approaching the signal they could just use it normally; it would never clear to more than YY

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The following users said thank you: 9pN1SEAp, Airvan00
Handling of Signal Lamp Failures 22/02/2018 at 12:48 #106073
1688 posts
Not only would it be considered, but it's the preferred practice.

It is much better to have the train proceed under warning signals than to have to talk it past a red. The former is normal operation; the latter removes lots of safety features.

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The following user said thank you: Airvan00