Sunset route
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- 27 Oct 2015
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I can think of a couple (on a reversibly-signalled line) where at least one stop signal in the wrong direction is plated as a distant for a similar reasons. You'd presumably still come up to a red during some forms of degraded working though.
We have in our area replaced a section of SIMBIDs with more conventional fully signalled Bi-Di which comes complete with three aspect (plated) distant signals at certain locations for the Bi-Di working. But under normal directional running the plated distant signals will display a red aspect, (they are listed as “non approachable at red distant signals”. But under certain failure conditions (wrong direction running before you’ve had a chance to implement Bi-Di running as the whole section needs to be clear of trains first) you can in fact have trains approaching them while at red, so we have to be careful not to end up with two trains in a signal section.