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Electrification threads and resources index

zwk500

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All this said, the program certainly lends itself more to "|DF||UF||DS||US|" style railways (e.g. GWML, MML, and parts of the WCML & ECML) than "|DS||DF||UF||US|" ones (e.g. most of the 4-track ECML).
It does, and the animation certainly suggests a particular line in mind! However, I think there's scope for a modified form of this to concentrate work on possessions of the outer lines only, leaving the inner lines available to overnight traffic, and then taking shorter all-line blocks to do the bits that couldn't be done otherwise. Especially on lines like the ECML where there's often sufficient separation between the 'inner' and 'outer' lines to have signals on posts rather than suspended from gantries.
 
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reddragon

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It does, and the animation certainly suggests a particular line in mind! However, I think there's scope for a modified form of this to concentrate work on possessions of the outer lines only, leaving the inner lines available to overnight traffic, and then taking shorter all-line blocks to do the bits that couldn't be done otherwise. Especially on lines like the ECML where there's often sufficient separation between the 'inner' and 'outer' lines to have signals on posts rather than suspended from gantries.
I think the track layout is irrelevant, it's about the solution.
 

Nicholas Lewis

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Greater longevity, I'd imagine.
This scheme feels like carrying out bodywork repairs on a locomotive/coach - sure, it improves the reliability, but there's only so far you can go before replacement is the best option.
Perhaps also a greater understanding of the ground conditions of this sceptred b***dy isle?

All this said, the program certainly lends itself more to "|DF||UF||DS||US|" style railways (e.g. GWML, MML, and parts of the WCML & ECML) than "|DS||DF||UF||US|" ones (e.g. most of the 4-track ECML).
I can certainly envisage it being considered for the Colton Jn - York stretch of the ECML, as that's the only significant "grouped by speed" part of that route where trains are running above 100mph; it's also a small-enough area to not worry too much about scope creep.
Weaver Jcn to Motherwell has just turned 50 years old in traffic and those spindly masts in shallow foundations and headspans are still standing strong and proud as a testament to properly value "British Rail" engineering
 

zwk500

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Weaver Jcn to Motherwell has just turned 50 years old in traffic and those spindly masts in shallow foundations and headspans are still standing strong and proud as a testament to properly value "British Rail" engineering
You mean all the masts between Carlisle and Carstairs that had to be replaced because they were leaning rather far from vertical?
 

mwmbwls

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Could I draw your attention to an article in this months "Rail Engineer" about future electrification programmes.
The article challenges the concept that "OHLE" is the only solution to the need for the next generation of rail improvements. Incorporating ideas propoed by Julian Worth of CILT the Chartered Instittue of Logistics and Transport) of electrification from key container ports and heavy mineral traffic , the report proposes the use of battery/overhead combinations.

In general, politicians do not understand rail economics and civil servants can quote many examples of rail electrification and civil engineering projects that run over time and over budget. The last Labour Government only managed to electrify the link between Crewe and Stoke - after strong pressure from pragmatic engineers.Tony Blair did not understand railways. Just as the last Labour Governmnt was bundled out of office it announced a bundle of projects that taxed the capacity of the industry to respond. This resulted in time and cost overuns enabling the media to make hay at the industries expense. You have get four things right for major projects to succeed - Politics, Economics, Social and Technical. In part the problem stems from a media tendency to focus about "Being over cost and late delivery". It is remarkable that the fuss and furore that accompanied the bulding of the Channel Tunnel and The Elizabeth Line evaporates once the projects open. One of my civil engineering colleagues described this - "Civil Engineers change white elephants to grey elephants".
 

GRALISTAIR

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July 2024- December 2024 Threads.

Fife circle and Borders railway electrification update

Electrification possible of WEML, North Downs, Uckfield possible with 3rd Rail under ORR current policy?

Best electrification schemes to iron out peaks and troughs and release stock for use elsewhere

Acton Main Line to Acton Wells Jct electrification

Acton area electrification extras that should be considered

Why was Mark 1 OHLE replaced under WCRM

Weird electrification at St Pancras

Anglia region conversion to 25kV AC OHLE in the 1970s and 1980s

Should London Gateway be electrified?

Single track vs Twin Track cantilevers
 
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Trainbike46

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I'm wondering, when Blackpool North was electrified, why wasn't the route to Blackpool South included? It's not that far, anything that serves it is on a significant stretch of electrified route shared with Blackpool North anyway, it seems like it should have been included, so I guess there must be a reason it wasn't?
 

zwk500

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I'm wondering, when Blackpool North was electrified, why wasn't the route to Blackpool South included? It's not that far, anything that serves it is on a significant stretch of electrified route shared with Blackpool North anyway, it seems like it should have been included, so I guess there must be a reason it wasn't?
I believe at that time Blackpool South services worked through to the Blackburn line, so there wasn't a unit saving on that front. It also would have increased the costs, for the benefit of a single track line with a low frequency, and possibly wasn't electrification ready, while the Blackpool North line was resignalled at the same time as electrification and allowed a regular London service to operate (at least in theory).
 

Nicholas Lewis

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I believe at that time Blackpool South services worked through to the Blackburn line, so there wasn't a unit saving on that front. It also would have increased the costs, for the benefit of a single track line with a low frequency, and possibly wasn't electrification ready, while the Blackpool North line was resignalled at the same time as electrification and allowed a regular London service to operate (at least in theory).
Would be a BEMU candidate now.
 

John R

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Is it worth noting in the first post that the Treherbert/Aberdare/Merthyr to Cardiff electrification is now complete and all live, with work well under way on the Coryton/Rhymney lines?
 

Nicholas Lewis

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Piling was due to start the summer bank holiday weekend.
and be finished......

anyhow my facetious observations aside this must be the most obvious bit of wiring that was missing so at least its being closed at last and with GBRs 99's ought to be scope to move some freight finally under the wires on the Western
 

Class 170101

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Confirmed in the latest Enhancements-Delivery-Plan-England-and-Wales-June-2024.pdf that completion is planned for Jul26 extraordinarily slow for less than a km even for allowing the significant rework required at Acton Main Line and Wells Jcn.
I guess that depends on the Access Strategy and the Access available.

Probably extremely limited to something like 00:01 to 09:00 at best on Sunday mornings and piggybacking on existing blocks. Some operators probably didn't agree to the access (unless they weren't running trains) as it didn't benefit them.
 

Nicholas Lewis

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I guess that depends on the Access Strategy and the Access available.

Probably extremely limited to something like 00:01 to 09:00 at best on Sunday mornings and piggybacking on existing blocks. Some operators probably didn't agree to the access (unless they weren't running trains) as it didn't benefit them.
foul of Acton Wells Jcn would need LO but would imagine commercial freight would be limited over August BH weekend to get better go at it. The challenge is going to be tying it in with the existing OLE which will need a multi day closure over a Xmas holiday.
 

snowball

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I have updated the very first post in this thread. Feel free to comment if anyone thinks it needs modification.
East Kilbride-Barrhead electrification - devegetation mainly complete, bridge work and civils and piling and masting in progress
This could benefit from being split into two, something like this:
Glasgow-Barrhead - completed 2023, in service
East Kilbride branch - devegetation mainly complete, bridge work and civils and piling and masting in progress, due for completion before the end of 2025.

Guide Bridge to Stalybridge could also be mentioned.
 
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John R

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For South Wales Metro I would expand it as follows:-

TAM Lines (Treherbert/Aberdare/Merthyr to Cathays) complete and energised.
Rhymney/Coryton/Cardiff Bay under construction.
 

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