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| WM311 06/12/2023 at 21:12 #154623 | |
9pN1SEAp
1189 posts |
Hi, I note that a condition for this signal on Down Line C to clear is that the approaching points P2067A need to be proved normal, i.e. a route from 309/473 would be possible. Is this a common condition on interlocking, as I don't recall seeing any other examples? Thanks Jamie Jamie S (JAMS) Log in to reply |
| WM311 06/12/2023 at 21:53 #154624 | |
Steamer
3997 posts |
Can only assume its been done to guard against a train passing 309 or 473 at danger, ending up on line B and the driver then reading across to 311 and thinking they've got a clear signal.
"Don't stress/ relax/ let life roll off your backs./ Except for death and paying taxes/ everything in life.../ is only for now." (Avenue Q) Log in to reply |
| WM311 06/12/2023 at 23:06 #154626 | |
GeoffM
6380 posts 
|
Very common. Several cases on Upminster, a couple on Woking, and a couple on LeedsEW come to mind. They're effectively read across controls, where the driver is heading directly towards a signal which does not apply to them, where a crossover takes them to a different signal just before those signals - in this case sighting WM311 but WM475 actually applies to them. Manchester Piccadilly has a couple of similar ones, though in these cases they want "track occupied in front of it, or points normal".
SimSig Boss Log in to reply |