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Parsonage Road - LC Failure

You are here: Home > Forum > Simulations > Released > Horsham > Parsonage Road - LC Failure

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Parsonage Road - LC Failure 14/06/2015 at 21:45 #73367
Andrew G
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542 posts
When a long Up Train stops at Littlehaven it appears to cause a LC failure.

This seems to occur too frequently to be prototypical.

Is this the case in real life or does the fouling point need to be moved in the sim?

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Parsonage Road - LC Failure 18/06/2015 at 08:56 #73498
Andrew G
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542 posts
Anybody else noticed this or am I just imagining it?
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Parsonage Road - LC Failure 18/06/2015 at 09:10 #73499
AndyG
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1778 posts
Yes, I've seen it, but not identified exact cause to date. Presumably related to strike out data for AHB.
I can only help one person a day. Today's not your day. Tomorrow doesn't look too good either.
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Parsonage Road - LC Failure 18/06/2015 at 09:19 #73501
MarkC
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1028 posts
" said:
Yes, I've seen it, but not identified exact cause to date. Presumably related to strike out data for AHB.
I have seen this happen on many sims that have AHB if a train straddles the crossing, I have assumed (rightly or wrongly) that the AHB would normally expect to raise after a certain amount of time but if it doesn't the crossing control system will assume worst case and report a failure.

It's not my fault! I was left unsupervised.
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Parsonage Road - LC Failure 18/06/2015 at 09:32 #73502
Danny252
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1461 posts
" said:
I have seen this happen on many sims that have AHB if a train straddles the crossing, I have assumed (rightly or wrongly) that the AHB would normally expect to raise after a certain amount of time but if it doesn't the crossing control system will assume worst case and report a failure.
Yes, the AHB failure state is simply linked to how long the barriers have been down (and maybe a few other things?), given that AHB barriers are designed to fail safe in the down position if power is lost.

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Parsonage Road - LC Failure 18/06/2015 at 14:02 #73504
Noisynoel
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989 posts
Im looking into it
Noisynoel
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Parsonage Road - LC Failure 18/06/2015 at 16:25 #73507
Andrew G
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542 posts
" said:
Im looking into it
Thanks.

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Parsonage Road - LC Failure 26/04/2021 at 19:02 #139105
9pN1SEAp
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583 posts
Not sure if I just didn't see it before, but having just started a 2009 TT run today (HRH version 1.5), every single Up pax seems to be causing "Crossing failure at Parsonage Road" - the de-occupation timeout seems to be about 35 seconds too short.

Thanks
Jamie

Jamie S (JAMS)
Last edited: 26/04/2021 at 19:16 by 9pN1SEAp
Reason: re-measured strike time

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