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Author Topic: Open Access Application - London to Cardiff (28/03/2019)  (Read 49100 times)
IndustryInsider
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« Reply #45 on: July 20, 2019, 16:25:14 »

When there’s a problem east of Reading, the Oxford-Paddington services are usually amongst the first to be cancelled, along with the Bedwyn-Paddington’s and, as mentioned, the Cardiff-Paddington’s.  They are the three least disruptive to lose.

I can see the two Bristol-Paddington fast trains via Parkway joining that list after they are introduced.
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eightonedee
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« Reply #46 on: July 20, 2019, 20:52:55 »

Quote
When there’s a problem east of Reading, the Oxford-Paddington services are usually amongst the first to be cancelled, along with the Bedwyn-Paddington’s and, as mentioned, the Cardiff-Paddington’s.  They are the three least disruptive to lose.

Just to be clear II - do these go entirely? If so, surely it would be better to start and terminate these services at Reading, so that passengers could change there. And does this mean those of us who use the stopping services lose them as well, or is it just the Inter Cities from these locations that go? If the former, even more strong case for stopping services to start and finish at Reading, so we do not lose a substantial proportion of our rail service
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« Reply #47 on: July 21, 2019, 10:25:45 »

The Bedwyn’s usually start/terminate at Reading and the others cancelled throughout.  Oxford-Paddington still usually runs hourly as the trains from the Cotswold Line still run.  Stoppers generally run, but it depends where the problem is, which lines are affected and how badly they are affected.  GWR (Great Western Railway)/Network Rail have various strategies depending on the problem.
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« Reply #48 on: July 22, 2019, 11:03:25 »

Not sure if it's been mentioned before but I've heard a rumour that the Severn Tunnel is to be de-electrified.

IETs (Intercity Express Train) OK, Class 91 stymied.
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johnneyw
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« Reply #49 on: July 22, 2019, 11:38:06 »

Not sure if it's been mentioned before but I've heard a rumour that the Severn Tunnel is to be de-electrified.

IETs (Intercity Express Train) OK, Class 91 stymied.

This relates to the corrosion problems discovered in the tunnel on the overhead equipment only 4 years after installation. A solution is still being looked at but I've seen quotes here and in the general news media that suggest de-electrification is an option being looked at by the DfT» (Department for Transport - about).
I keep my hopes up here by having a lot more belief in the abilities of the railway engineering community than in the DfT.*

*Yes, it looks like an engineering issue was the cause of this but this tunnel apparently presented previously unencountered challenges due to it's unusual conditions.
« Last Edit: July 22, 2019, 11:44:22 by johnneyw » Logged
martyjon
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« Reply #50 on: July 22, 2019, 12:32:29 »

Not sure if it's been mentioned before but I've heard a rumour that the Severn Tunnel is to be de-electrified.

IETs (Intercity Express Train) OK, Class 91 stymied.

This relates to the corrosion problems discovered in the tunnel on the overhead equipment only 4 years after installation. A solution is still being looked at but I've seen quotes here and in the general news media that suggest de-electrification is an option being looked at by the DfT» (Department for Transport - about).
I keep my hopes up here by having a lot more belief in the abilities of the railway engineering community than in the DfT.*

*Yes, it looks like an engineering issue was the cause of this but this tunnel apparently presented previously unencountered challenges due to it's unusual conditions.


Build a Second Severn Tunnel then, they did it for the bridge.
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TonyK
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« Reply #51 on: July 22, 2019, 20:16:34 »


Build a Second Severn Tunnel then, they did it for the bridge.

Oooo's gonna pay for it? Grin
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martyjon
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« Reply #52 on: July 22, 2019, 20:34:23 »


Build a Second Severn Tunnel then, they did it for the bridge.

Oooo's gonna pay for it? Grin


Same as whats paying for HS2 (The next High Speed line(s)), the taxpayer.
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eXPassenger
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« Reply #53 on: July 22, 2019, 21:31:23 »

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Build a Second Severn Tunnel then, they did it for the bridge.

Could a railway be cantilevered off the Prince of Wales bridge?
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TonyK
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« Reply #54 on: July 22, 2019, 21:40:34 »

Could a railway be cantilevered off the Prince of Wales bridge?

Ha ha ha!  Grin Grin Grin

Hang on, though - it could work. It might be easier to cantilever an extra lane of car traffic either side and lay track down the middle but...
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johnneyw
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« Reply #55 on: July 23, 2019, 14:38:18 »


Build a Second Severn Tunnel then, they did it for the bridge.

Oooo's gonna pay for it? Grin

Additionally, wouldn't a 2nd tunnel still have the same corrosion problems to resolve as the first one?
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martyjon
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« Reply #56 on: July 23, 2019, 16:17:46 »

Build a Second Severn Tunnel then, they did it for the bridge.
Oooo's gonna pay for it? Grin
Additionally, wouldn't a 2nd tunnel still have the same corrosion problems to resolve as the first one?

No, cos the new tunnel would be built learning the lessons of the original, digging it deeper for a start and lining it with concrete sections like the channel tunnel and other undersea tunnels on this planet of ours.
« Last Edit: July 26, 2019, 04:32:20 by martyjon » Logged
Adrian
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« Reply #57 on: July 23, 2019, 20:37:50 »

Isn't the current position that electric services to Cardiff will likely begin before the problems in the tunnel have been solved, rather than they are thinking of giving up on electrifying through it?  Although the impact on IET (Intercity Express Train) services might be negligible, I think it would be hugely embarrassing if Network Rail (and the company who supplied the kit) can't come up with a plan.

I wonder if it's practical to "waterproof" the tunnel roof in the leakiest sections?  If the water entered through the lower parts of the wall it presumably wouldn't be a problem.  About half the length of the tunnel isn't even under the Severn Estuary.
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« Reply #58 on: July 25, 2019, 17:34:24 »

Isn't the current position that electric services to Cardiff will likely begin before the problems in the tunnel have been solved, rather than they are thinking of giving up on electrifying through it?  Although the impact on IET (Intercity Express Train) services might be negligible, I think it would be hugely embarrassing if Network Rail (and the company who supplied the kit) can't come up with a plan.

From Network Rail with my bolding:

Quote
Once complete, the major modernisation work will enable Intercity Express Trains to run between London and Cardiff on electricity

Looks like passing through the Severn Tunnel on diesel after completion of the project is not an option.
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« Reply #59 on: September 27, 2019, 15:25:52 »

From Transport Extra

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Grand Union Trains has revealed that its proposed open access passenger service between London and South Wales could convey light freight, with a parcel hub created at one or more of the stations served.

The company also proposes to invest in additional car parking and improved road access at Severn Tunnel Junction, which serves Monmouthshire, South Gloucestershire and East Newport.

Article continues, mostly behind a paywall
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