Islineclear3_1
Established Member
I understand the lines through Hither Green to Sidcup and Chislehurst will be closed for a week from this weekend for resignalling. Is this now the last of the "L" signals controlled from London Bridge?
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Hither Green resignalling from this weekend
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Yes, I believe this leads to the last panel at London Bridge being removed: https://www.southeasternrailway.co....-travel-information/hither-green-resignalling
bramling
Veteran Member
Definitely the end of an era. One of the most impressive signalling centres of its time.
jnjkerbin
Member
For anyone not on Twitter, Network Rail posted a couple of threads with some interesting pictures.
trainmania100
Established Member
As I understand it , healthy fish can live for up to 3 weeks without feeding so probably nothing to worry aboutWho's gonna feed the fish
trainmania100
Established Member
If you haven't already noticed there's a nice little message on the train describer signalling diagrams at hither green station https://www.opentraintimes.com/maps/signalling/nkl1#T_HTHRGRN
flitwickbeds
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Screengrabbed for posterity!
Love this!
Does anyone have a detailed list of the tasks being performed this week? There has been quite a bit of preparatory work done in the area over the last few months, including track renewals, new signals being installed etc.
The station canopy on the platform two and three island has also been replaced. I have no idea whether this was condemned, or if its been done due to changes to signal sighting standards etc. (or perhaps both).
P2 (and 4?) also now has turn back boards which I assume will allow flexibility to turn trains at Hither Green and run HG - Orpington/Sevenoaks shuttles during engineering works.
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BS56
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Next on the list will be Clapham Junction/Victoria ASC. Parts of it are already controlled by Three Bridges ROC the rest will follow over the next few years.
I don’t know the full list but there is loads going on, I can’t see how they could have done it in a weekend.
as for canopies, Chislehurst is being done too. They built a bridge across the platforms to get plant equipment to the island platform.
Turnback boards at Lee and Grove Park iirc.
Many thanks.
Dr Hoo
Established Member
Can someone clarify what "Turnback Boards" are, please?
I would *assume* that the term refers to additional main aspect signals (not subsidiary or shunt signals) and associated reversible working to the next crossover(s) to allow trains to regain the normal running line(s) without the need for hand signallers or special instructions.
Is this a new/recent official term?
I would *assume* that the term refers to additional main aspect signals (not subsidiary or shunt signals) and associated reversible working to the next crossover(s) to allow trains to regain the normal running line(s) without the need for hand signallers or special instructions.
Is this a new/recent official term?
Basically a car mark with a 'T' and typically the train length. What they do is allow a train to come into the platform, stop at the correct mark (T) and then be aligned correctly for its next movement. In this case, trains are being signalled in to the down platform, terminate at the T board, and then change ends.
They have been in use for years.
http://www.railsigns.uk/sect21page4/sect21page4.html Bottom right, 21.92 (southeasterns T)
http://www.railsigns.uk/sect21page8/sect21page8.html Bottom right 21.172 (GTR Turnback board)
Hopefully they haven't messed them up. Recent installations have had to move them because they have been pooly positioned or cause operational problems.
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Dr Hoo
Established Member
Excellent reply. Thanks.
The NR twitter feed is a good one to watch as they often give commentary on whats happening, but obviously not always to the high operational level!
lancastria
Member
Cannon Street to Sevenoaks trains, stopping at Petts Wood and Orpington, have been rerouted via Park Bridge Junction and ladywell Loop and then from New Beckenham to Beckenham Junction via Beckenham Spur.
I sincerely hope that's a refurbishment of Chiselhurst platform canopy, rather than wanton destruction.
Canopy at Hither Green p2/3 has succumbed to 'wanton destruction' and being replaced with a new one, Chislehurst is a refurb I think as I've seen pictures of it being jet-washed.
I'll know more when I'm down there next week.
There's been a thread about this, not just Three Bridges ROC- but I'm unable to find it.
Thanks for the info.
Unfortunately I think the South Eastern Railway valance at Hither Green had already succumbed in the 1970's, so arguably less of interest to save, but it's good to know that the one at Chislehurst is being restored.
No one and grind to a halt but mitigation measures take for those two listed items.
A lot, lot more than is built into any PSB.
Class 170101
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It won't be terrorism that causes a problem at a ROC. It will be something innocent like a toaster / microwave.
In the link below if you look at the top right pic, you can see the new turnback boards on p2 at Hither Green
carriageline
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In short
The “old” 4 SSIs replaced with 2 Westlock interlocking.
Axle counters throughout
Fixed red on platform 2 + 4 at HG and GP to enable service to terminate and go back to London / Chislehurst.
turnback signal on Platform 5 at HG
Shunt signal turned into main aspect at Lee to enable turn back to HG/Sidings
new power supplies (not sure of the exact details!)
The “old” 4 SSIs replaced with 2 Westlock interlocking.
Axle counters throughout
Fixed red on platform 2 + 4 at HG and GP to enable service to terminate and go back to London / Chislehurst.
turnback signal on Platform 5 at HG
Shunt signal turned into main aspect at Lee to enable turn back to HG/Sidings
new power supplies (not sure of the exact details!)
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