Crewe BH62 to BH114

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Crewe BH62 to BH114 13/09/2023 at 17:19 #153307
DaveBarraza
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With a route in place from BH20 to BH30, attempting to set BH62 to BH114 gets the response "switch locked normal" - but I can throw all of the necessary switches with the mouse.

To this Signal Engineer it seems as if the routes should be able to co-exist - unless there is something I'm missing.

Dave

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Crewe BH62 to BH114 13/09/2023 at 17:29 #153308
DaveBarraza
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I see now that PBH22 needs to move reverse. Interesting choice.
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Crewe BH62 to BH114 13/09/2023 at 17:29 #153309
TUT
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510 posts
I think the issue is probably 62 to 114 requires 22 crossover (on approach to 20) reverse, so if they're locked normal by a train sitting on them, there's your problem.
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Crewe BH62 to BH114 13/09/2023 at 20:41 #153312
pedroathome
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DaveBarraza in post 153308 said:
I see now that PBH22 needs to move reverse. Interesting choice.
This caught a few people out during testing. It makes sense (at least to me) when you look at it not from just flank locking, but combined with the flank locking on points 25, prevents any possible head on collision. Instead the worst you'll end up with is a side swipe

You might find this link helpful

https://www.flickr.com/photos/15977833@N07/14949342846/

James

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The following user said thank you: DaveBarraza
Crewe BH62 to BH114 21/09/2023 at 20:07 #153383
DaveBarraza
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Yeah I get it... I'm used to the overlap defining the limits of which points you need to deal with, and that's just TBH251.

Thanks!

Dave

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