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Bristol Resignalling 2016-2018

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Bristol Resignalling 2016-2018

Unread postby DaveHarries » Thu Feb 11, 2016 7:46 pm

Evening all,

A quick heads-up regarding the last weekend of May 2016.

It seems that a substantial amount of work is to take place around the Bristol PSB area between Saturday 28th and Monday 30th May inclusive and I have had it suggested on another forum that this is likely to be resignalling of Bristol PSB (Panel D) to TVSC Didcot.

GWR have put a map on a leaflet that is available on their website (the leaflet relates to other works) but I have attached the map to this post. For the benefit, however, of anyone who has trouble seeing it a summary of the situation over the weekend of 28th - 30th May would be this:

Bus Replacement Services:
- Severn Beach to Bristol Temple Meads
- Bristol Parkway to Newport
- Bristol Parkway to Swindon
- Bristol Parkway to Gloucester
- Bristol Temple Meads to Filton Abbey Wood & Bristol Parkway
- Bristol Temple Meads to Severn Tunnel Junction / Newport

So the area closed also includes the whole of Filton Bank as well as all lines through Bristol Parkway and on to Gloucester & Hullavington. Going by the map attached to this post it seems that Cross Country services will make a detour between Bristol Temple Meads and Gloucester (Standish Junction) via. Bath Spa, Chippenham, Swindon and Kemble. I wouldn't mind that trip for a bit of variety.

If this is for resignalling I wonder if this will be commissioning of part of the area or simply preparation work (ie. installation of signals and equipment) but the number of routes and the size of the area closed suggests something substantial.

The link for the leaflet in question is https://www.gwr.com/~/media/gwr/pdfs/planned-engineering/2016/bath-spa-warm-up-leaflet-web-version.pdf?la=en and the map for the end of May is on the second page so you have to scroll down a bit.

HTIOI,
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Bristol Resignalling 2016-2018

Unread postby LAMPMAN » Sat Feb 13, 2016 8:16 pm

Hi Dave

Yes this is the start of the Bristol resignalling for the move to Didcot there is a another possession planned for around August 2016 which should see Didcot taking control from Bristol PSB.
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Unread postby JRB » Sat Feb 13, 2016 10:00 pm

This will enable removal of the PSB from track access to the original station.
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Unread postby Zoe » Sat Feb 13, 2016 11:39 pm

I'm not sure the PSB will actually be closing any time soon, the Bristol Area Signalling & Enhancement scheme excludes the Bristol South recontrol and there no longer seems to be a pressing need for this be done so the box can close. The recently published Enhancements Delivery Plan Update said that reinstating the platforms is proposed to be re-planned to align it with the future Bristol Temple Meads station masterplan since the new platforms will not be required until CP6 at the earliest.
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Bristol Resignalling 2016-2018

Unread postby Mike Stone » Sun Feb 14, 2016 1:06 pm

is this work perhaps moving the cabling on Filton bank out of the way of the four tracking?
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Unread postby LAMPMAN » Sun Feb 14, 2016 6:45 pm

Zoe wrote:I'm not sure the PSB will actually be closing any time soon, the Bristol Area Signalling & Enhancement scheme excludes the Bristol South recontrol and there no longer seems to be a pressing need for this be done so the box can close. The recently published Enhancements Delivery Plan Update said that reinstating the platforms is proposed to be re-planned to align it with the future Bristol Temple Meads station masterplan since the new platforms will not be required until CP6 at the earliest.


Yes that's correct, Bristol Parkway area and the fringe to the SWCC is the first area to move to Didcot also this will give access to the new Train Care depot for

GWR at Bristol Parkway.

The closure of Bristol PSB fully is a few years away yet.
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Unread postby edwin_m » Mon Feb 15, 2016 6:28 pm

If Temple Meads is electrified before the old part of the station is re-opened, would the box have to close anyway for immunisation reasons? Even if the only areas it still controlled were remote from any electrification?
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Unread postby LAMPMAN » Mon Feb 15, 2016 7:32 pm

edwin_m wrote:If Temple Meads is electrified before the old part of the station is re-opened, would the box have to close anyway for immunisation reasons? Even if the only areas it still controlled were remote from any electrification?


No I don't think that's part of the plan.

A lot of the signalling has to renewed as part of the Electrification plan as well as it does not meet the standards for OHL also don't forget as areas are

re signalled the interlocking will be transferred away to Didcot and the relay rooms and interlocking at Bristol PSB will be closed down as the stages take place.
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Unread postby Mike Stone » Sun Nov 27, 2016 3:52 pm

https://www.railengineer.uk/2016/10/26/ ... -renewals/
;
Interesting to see that the mid-platform boards are being replaced by signals with no overlap, which I understood was seen as a problem in connection with re-signalling New Street?
;
Found while looking for any information as to wether common-sense was finally to prevail at Parkway and the Up Badminton realigned through p.4 so as to permit parallel arrivals from South Wales and Bristol?
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Unread postby S&TEngineer » Sun Nov 27, 2016 5:56 pm

Mike Stone wrote:https://www.railengineer.uk/2016/10/26/bristol-area-signalling-renewals/
Interesting to see that the mid-platform boards are being replaced by signals with no overlap, which I understood was seen as a problem in connection with re-signalling New Street?

No they are not. Its in the article you quoted:
New Warner routes (delayed yellow) with zero overlaps are being provided up to the platform sharing signals if the far platform is occupied. If the far platform is clear, a main route will be given with a reduced overlap using the free platform.
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Unread postby DaveHarries » Mon Nov 28, 2016 12:31 am

Mike Stone wrote:https://www.railengineer.uk/2016/10/26/bristol-area-signalling-renewals/

Just had a look at that article. In regards the date of February 2017 date for transfer of the Badminton line over to TVSC Didcot I notice from RealTimeTrains that there seems to be an engineering blockade east of Bristol Parkway for 18th & 19th February so I guess the work is to be done then: there are no other engineering blocks in the Bristol Parkway area on the other weekends that month.

On RTT it looks as if the works will see CrossCountry services to Birmingham New Street and the North operating via the Severn Tunnel to Newport, then heading back to Severn Tunnel Junction and taking the line to Lydney via. Gloucester: services going the other way will do the same in reverse. At Newport it looks also as if the bi-directional signalling will come in handy too.

HTIOI,
Dave
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Unread postby Mike Stone » Mon Nov 28, 2016 2:38 pm

S&TEngineer wrote:
Mike Stone wrote:https://www.railengineer.uk/2016/10/26/bristol-area-signalling-renewals/
Interesting to see that the mid-platform boards are being replaced by signals with no overlap, which I understood was seen as a problem in connection with re-signalling New Street?

No they are not. Its in the article you quoted:
New Warner routes (delayed yellow) with zero overlaps are being provided up to the platform sharing signals if the far platform is occupied. If the far platform is clear, a main route will be given with a reduced overlap using the free platform.

My reading of that is that was that if the far platform is occupied then trains will get a delayed yellow at the last signal outside the station without any requirement for there to be an overlap beyond the new middle signal.
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Unread postby LAMPMAN » Mon Jan 16, 2017 10:17 pm

This February 2017, resignalling will see Panel D at Bristol Panel close with control passed to Didcot TVSC. Didcot TVSC will then fringe to Gloucester Panel at Berkley Road Jn
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Unread postby rower40 » Wed Jan 18, 2017 3:28 pm

LAMPMAN wrote:This February 2017, resignalling will see Panel D at Bristol Panel close with control passed to Didcot TVSC. Didcot TVSC will then fringe to Gloucester Panel at Berkley Road Jn

Didcot TVSC will also then control from Paddington buffer stops to Patchway, where it fringes with South Wales Control Centre. While this may not be as long as trains remaining under (say) RETB control in the windswept wilds of Scotland in terms of distance or time, is it the longest number of signal sections that a train remains in one control centre?
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Re: Bristol Resignalling 2016-2018

Unread postby DY444 » Sat Jan 21, 2017 12:02 pm

rower40 wrote:
LAMPMAN wrote:This February 2017, resignalling will see Panel D at Bristol Panel close with control passed to Didcot TVSC. Didcot TVSC will then fringe to Gloucester Panel at Berkley Road Jn

Didcot TVSC will also then control from Paddington buffer stops to Patchway, where it fringes with South Wales Control Centre. While this may not be as long as trains remaining under (say) RETB control in the windswept wilds of Scotland in terms of distance or time, is it the longest number of signal sections that a train remains in one control centre?


Rugby might be a contender
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