Great Western Coffee Shop

Journey by Journey => Plymouth and Cornwall => Topic started by: FarWestJohn on June 26, 2021, 06:59:04 pm



Title: Devon and Cornwall resignalling
Post by: FarWestJohn on June 26, 2021, 06:59:04 pm
Has anyone seen any further information on this:

https://news.railbusinessdaily.com/siemens-mobility-to-deliver-low-cost-digital-solution-for-devon-and-cornwall-re-signalling-programme/?fbclid=IwAR1Ngm8QLBWeakyQ-XAV6NvmwPocHsx5CGQ54wIUYi7qX8te3Ox7yjA6MXQ

It says completion in late 2023!!

I did not see any mention of it in the current Modern Railways article on GWR.


Title: Re: Devon and Cornwall resignalling
Post by: bobm on June 26, 2021, 07:13:09 pm
Quote
As well as installation of all signalling equipment, Siemens Mobility will be supplying its Controlguide Westcad control system at Exeter power signal box (PSB) for Cornwall, and at Plymouth PSB for Devon, as well as taking responsibility for all telecommunications; power distribution and civil engineering works required for the new equipment.

Someone's geography has got confused!


Title: Re: Devon and Cornwall resignalling
Post by: infoman on June 26, 2021, 07:45:02 pm
Would this mean that all Semaphore signals would be no more?


Title: Re: Devon and Cornwall resignalling
Post by: AMLAG on June 26, 2021, 08:16:59 pm

So far the Siemens Mobility press release seems unclear in how much of the current
signalling in Cornwall will instead be controlled from the Exeter Signalling Centre and which Cornish SBs will be closed and just what the reported elsewhere, area of 'West Devon' that will be controlled from the existing early 1960's Plymouth PSB, which ?was/is
expected to close.
The last Semaphore signals could well, in 2024, be at Bodmin General.



Title: Re: Devon and Cornwall resignalling
Post by: GBM on June 27, 2021, 08:22:50 am
I'm very confused (it's my age).
Plymouth will/might control some parts of West Cornwall; the rest going over to Exeter.
Why not do the lot from Plymouth; over even do it all from Exeter and shut Plymouth.  ???


Title: Re: Devon and Cornwall resignalling
Post by: bobm on June 27, 2021, 11:46:19 am
I remember back in 2014 I was lucky enough to look round the Thames Valley Signalling Centre at Didcot.  At that stage the plan was still to control everything from Paddington to Penzance from there.

In this photo the Paddington workstation is the last video display on the right.  Penzance would, I believe, have been at the end of the semi-circular wood surround in the foreground. 

(http://www.mbob.co.uk/rforum/didpad.jpg)


Title: Re: Devon and Cornwall resignalling
Post by: Pb_devon on June 27, 2021, 12:27:10 pm
I hope it’s OK to quote from a post on RMweb earlier this week:

“ As one of the designers on the scheme, I can answer the questions:
 
1) Semaphore Signalling at Liskeard, St. Blazey, Goonbarrow and St. Erth is safe, and the mechanical frame at Penzance is also safe. I think the signal boxes that are being closed will remain standing, just in a different use.
 
2) The new workstation at Exeter will cover Cornwall, and eventually also control Plymouth when that’s done (although I don’t when that will be). There’s simply more space for a workstation at Exeter and it’s where the Cornish signallers are based at anyway (at least I think that was the case when we did the original scheme).
 
Simon”

I have asked him to clarify that the mechanical signals will be motor driven remotely.


Title: Re: Devon and Cornwall resignalling
Post by: GBM on June 27, 2021, 12:34:11 pm
Thank you Pb_devon.
Clears my mind somewhat.
Wonder why Penzance is 'safe' as it only controls that area.
If Plymouth can be remoted from Exeter, then Penzance would be no problem to remote.


Title: Re: Devon and Cornwall resignalling
Post by: Jamsdad on June 28, 2021, 12:10:00 pm
Don't let Mebyon Kernow hear that!


Title: Re: Devon and Cornwall resignalling
Post by: Pb_devon on June 28, 2021, 04:24:06 pm
And the answer Simon has provided is this:

“ Yes and no, the Mechanical Semaphores at Lostwithiel, Par and Truro are all being replaced with LED Colour Lights, they will be controlled by a VDU Workstation at Exeter rather than the panel. However, the Mechanical Semaphore Signals at Liskeard, St. Blazey, Goonbarrow and St. Erth will remain and worked by their respective boxes.”
 
So a partial resignalling then!


Title: Re: Devon and Cornwall resignalling
Post by: ellendune on June 28, 2021, 06:08:26 pm
At first sight this looks a bit of a patchwork.  It would be more logical if Liskeard only covered the branch to Looe.  Where is the interface with Plymouth panel?


Title: Re: Devon and Cornwall resignalling
Post by: TonyK on June 29, 2021, 08:12:48 am
And the answer Simon has provided is this:

“ Yes and no, the Mechanical Semaphores at Lostwithiel, Par and Truro are all being replaced with LED Colour Lights, they will be controlled by a VDU Workstation at Exeter rather than the panel. However, the Mechanical Semaphore Signals at Liskeard, St. Blazey, Goonbarrow and St. Erth will remain and worked by their respective boxes.”
 
So a partial resignalling then!

It saves the cost of building a museum. One day, the UK signalling system will be controlled by one person from a smartphone app.


Title: Re: Devon and Cornwall resignalling
Post by: Pb_devon on June 29, 2021, 08:29:17 am
Where is the interface with Plymouth panel?

Plymouth controls west up to the Liskeard distant.


Title: Re: Devon and Cornwall resignalling
Post by: Carvolth on January 23, 2022, 09:30:47 pm
I still find it hard to understand the logic of a mixture of old mechanical signalling with that of a modern network all controlled from one ROC. It seems a "pig's ear" of a scheme to me and probably fraught with difficulties.


Title: Re: Devon and Cornwall resignalling
Post by: IndustryInsider on January 23, 2022, 09:43:24 pm
I still find it hard to understand the logic of a mixture of old mechanical signalling with that of a modern network all controlled from one ROC. It seems a "pig's ear" of a scheme to me and probably fraught with difficulties.


Cost.  Short term cost.  :-\


Title: Re: Devon and Cornwall resignalling
Post by: TonyK on January 24, 2022, 02:43:43 pm
I still find it hard to understand the logic of a mixture of old mechanical signalling with that of a modern network all controlled from one ROC. It seems a "pig's ear" of a scheme to me and probably fraught with difficulties.

You need a £100 million computer system, lots of LED lights, a GSM radio system with capability for transmission of telemetry data at high speed, a whistle, a flag and some large bangy things to stick on the rails when it's foggy, so the driver of the £50 million train knows that there's a broken down steam engine ahead.


Title: Re: Devon and Cornwall resignalling
Post by: broadgage on January 24, 2022, 04:24:26 pm
And so that the driver of a steam engine knows that there is a broken down £50  million new train ahead !


Title: Re: Devon and Cornwall resignalling
Post by: paul7575 on April 08, 2022, 11:50:56 am
This has developed into a thread with two halves hasn’t it? Until sometime in January it was about a future resignalling project due to complete in 2023.  Has work actually started on that?

Then from post 17 onwards it was suddenly all about day to day faults, theft or vandalism.

Are the two subjects actually related at all?  ???

Paul


Title: Re: Devon and Cornwall resignalling
Post by: GBM on April 09, 2022, 06:28:33 am
Guilty as charged.
I didn't spot the REsignalling at the time of my first post.

So Mods, please split this into two if possible, perhaps with a title of Cornwall signalling problems? as the thefts have been in Cornwall.


Title: Re: Devon and Cornwall resignalling
Post by: bobm on July 07, 2022, 05:55:06 pm
Took a while to respond - but topics now split!


Title: Re: Devon and Cornwall resignalling
Post by: DaveHarries on August 27, 2022, 06:39:44 pm
I note that the list of engineering works due later this year on GWR's website includes:
- 5th, 6th & 13th November: St. Austell to Penzance
- 19th & 20th November: Lostwithiel to St. Austell
- 05th - 08th December: Truro to Penzance, incl. St. Erth - St. Ives
- 27th - 30th January: Par to Newquay

I presume, without knowing for sure, that the works of November and December will be related to the resignalling in terms of installation of the replacement signals - :( - but I am not sure when the new setup is due to be commissioned. As for Par to Newquay this could also be for work on the same project to make a few alterations.

Dave



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