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| Centralisation of signalling infrastructure 22/05/2019 at 09:15 #118430 | |
Richard42
45 posts |
As a SimSig player, but without a "proper" railway background, can I ask what is probably a naive question? There seems to be ever more combining of signalling centres into yet bigger ones. Thinking about other industries with large, safety critical systems, they have redundancy built in - does signalling? If York IECC (for instance) has a massive outage, is there a geographically distinct centre that can step in? Log in to reply |
| Centralisation of signalling infrastructure 22/05/2019 at 09:56 #118431 | |
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Sacro
1171 posts |
Not that I'm aware of, some areas in years gone by had "slave panels" at some locations that could be used in an emergancy. Also York IECC closed in December, it's all at the ROC now! Log in to reply The following user said thank you: Richard42 |
| Centralisation of signalling infrastructure 22/05/2019 at 12:12 #118433 | |
GeoffM
6376 posts |
The problem is not so much technical (yes, it's feasible) but humans. Maintaining a group of qualified signallers (etc) near to a back-up location is hugely expensive, and transporting local signallers to that remote facility is likely to take longer than fixing the problem. The failure rate of a large signalling centre for more than an hour is incredibly low, so all combined, it's not a viable thing to do. Yes, it's massively inconvenient over a wide area for an extended amount of time while trains and crews get back into position after the failure, but when you consider a lone signaller in a mechanical box getting locked in the bog (true story) can also bring a line to a complete standstill, is it actually that much different? SimSig Boss Last edited: 22/05/2019 at 16:56 by GeoffM Reason: Clarification now I'm more awake Log in to reply The following user said thank you: Richard42 |
| Centralisation of signalling infrastructure 22/05/2019 at 14:02 #118434 | |
Peter Bennet
5402 posts |
A few years ago Kings Cross box was evacuated for 2 days due to a fire in an adjacent building site and a service of sorts was operated from FPK using the panels in the relay rooms along the line. Peter I identify as half man half biscuit - crumbs! Log in to reply The following user said thank you: Richard42 |
| Centralisation of signalling infrastructure 22/05/2019 at 14:33 #118435 | |
Edgemaster
332 posts |
GSM-R radio terminals allow fairly seamless failover to adjacent areas, allowing other signallers to contact, and if necessary stop trains in the area in an emergency.
Last edited: 22/05/2019 at 14:33 by Edgemaster Reason: None given Log in to reply The following user said thank you: Richard42 |