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Author Topic: Infrastructure problems in Thames Valley causing disruption elsewhere - ongoing, since Oct 2014  (Read 842763 times)
a-driver
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« Reply #2745 on: May 22, 2018, 02:09:54 pm »

Network Rail confident of a 1500 hand back. There’s currently a scaffolding tower erected to enable repairs to the damaged insulator.
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M.T. Vessel
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« Reply #2746 on: May 22, 2018, 03:03:03 pm »

And there was me thinking "There goes the neighbourhood" when I heard four what sounded like gunshots... When those things go they don't do it quietly. (Well, they might, but not last night)
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johoare
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« Reply #2747 on: May 22, 2018, 03:10:00 pm »

Welcome to the forum M.T. Vessel Hopefully you'll find some useful information and advice on here
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IndustryInsider
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« Reply #2748 on: May 22, 2018, 03:16:41 pm »

Network Rail confident of a 1500 hand back. There’s currently a scaffolding tower erected to enable repairs to the damaged insulator.


Now 15:30 but workers and equipment are clear on the track.  Let's hope it all works ok when re-energised.
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To view my GWML Electrification cab video 'before and after' video comparison, as well as other videos of the new layout at Reading and 'before and after' comparisons of the Cotswold Line Redoubling scheme, see: http://www.dailymotion.com/user/IndustryInsider/
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« Reply #2749 on: May 22, 2018, 03:31:36 pm »

Normal working resumed at 15:24, though as ever displaced stock and crews will no doubt impact on the evening peak to some degree.
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To view my GWML Electrification cab video 'before and after' video comparison, as well as other videos of the new layout at Reading and 'before and after' comparisons of the Cotswold Line Redoubling scheme, see: http://www.dailymotion.com/user/IndustryInsider/
eightf48544
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« Reply #2750 on: May 22, 2018, 03:36:09 pm »

In connection with this incident I found this on the Nataional Rail Website.

Customers travelling to Taplow and Burnham, from the London direction, are advised to change at Reading and then catch local First Bus services onwards.

Customers at Taplow and Burnham travelling in either direction- towards Paddington OR Reading- are advised to use local First Bus services on which their rail tickets will be valid.

There are no First buses from Reading  to Maidenhead and Slough

There is the First No 4 every 30 minutes from Slough to Maidenhead along the A4. There are also other buses from Slough which go by Burnham station. It is a fair walk from Taplow to the bus stop outside Tescos and it's a dodge the traffic walk at  a Maidenhead.

Also the First No 4 is not to be confused with the Courtney Bus No 4 which shares the Frascati Way terminus.

They say  computerised Information Systems make it easier, They've forgotten GIGO. Roll on AI we'll all get jobs sorting out the mess.
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TaplowGreen
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« Reply #2751 on: May 22, 2018, 04:24:04 pm »

Whilst any reasonable passenger would understand that things break, and that disruption will occur in such circumstances, OHLE failures do seem to be unduly frequent and not resulting in the more reliable railway that is still being advertised.

As in other cases, I would ask "what happens overseas ?" I have no doubt that German and French railways have OHLE failures, but I rather doubt that they are as frequent as in the UK.

I would say this is the first ‘major’ incident of the newly electrified sections, so overall reliability has been good.  Had this sort of thing happened once a week since last summer I could sympathise with your views.

I doubt many folk in Germany and France will get to hear about this particular incident, so, as Stuving suggested a few months ago, just because you don’t hear about it doesn’t mean it doesn’t happen.

That's probably a fair point (notwithstanding pigeons and plastic bags) but I think it illustrates that when something does go "pop" it has the potential to do so big time, and relying on a group of people going for a lengthy walk in order to find the source is a little concerning and brings resilience/robustness into question.

It also of course comes against a recent backdrop of fairly major disruption due "urgent repairs to the track", heat related damage in what could charitably be called pretty moderate temperatures, as well as the usual signalling issues on the infrastructure side, so the public are going to tend to be less forgiving, without even going near all the non infrastructure issues around brand new trains falling over and lack of crew etc.
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Adelante_CCT
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« Reply #2752 on: May 22, 2018, 06:28:24 pm »

With all the problems today, I'd assumed they were using these new rail replacement services, as seen outside Reading depot this evening

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Witham Bobby
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« Reply #2753 on: May 23, 2018, 10:27:58 am »

That must be a pretty dangerous coach, to be fenced off like that  Grin
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broadgage
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« Reply #2754 on: May 23, 2018, 11:08:06 am »

That must be a pretty dangerous coach, to be fenced off like that  Grin

Perhaps it is a top secret hydrogen powered unit Smiley
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A proper intercity train has a minimum of 8 coaches, gangwayed throughout, with first at one end, and a full sized buffet car between first and standard.
It has space for cycles, surfboards,luggage etc.
A 5 car DMU is not a proper inter-city train. The 5+5 and 9 car DMUs are almost as bad.
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« Reply #2755 on: May 23, 2018, 04:24:31 pm »

Due to a safety inspection of the track at Slough trains have to run at reduced speed on some lines towards Reading. Disruption is expected until 19:45 23/05.
Impact: Train services between London Paddington and Slough may be delayed by up to 15 minutes.
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broadgage
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« Reply #2756 on: May 23, 2018, 04:30:12 pm »

Whilst any reasonable passenger would understand that things break, and that disruption will occur in such circumstances, OHLE failures do seem to be unduly frequent and not resulting in the more reliable railway that is still being advertised.

As in other cases, I would ask "what happens overseas ?" I have no doubt that German and French railways have OHLE failures, but I rather doubt that they are as frequent as in the UK.

I would say this is the first ‘major’ incident of the newly electrified sections, so overall reliability has been good.  Had this sort of thing happened once a week since last summer I could sympathise with your views.

I doubt many folk in Germany and France will get to hear about this particular incident, so, as Stuving suggested a few months ago, just because you don’t hear about it doesn’t mean it doesn’t happen.

This particular failure, of a defective insulator may indeed be as rare you suggest. However OHLE issues causing significant delays seem to occur most weeks.
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A proper intercity train has a minimum of 8 coaches, gangwayed throughout, with first at one end, and a full sized buffet car between first and standard.
It has space for cycles, surfboards,luggage etc.
A 5 car DMU is not a proper inter-city train. The 5+5 and 9 car DMUs are almost as bad.
Electric train
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« Reply #2757 on: May 23, 2018, 08:38:10 pm »

Whilst any reasonable passenger would understand that things break, and that disruption will occur in such circumstances, OHLE failures do seem to be unduly frequent and not resulting in the more reliable railway that is still being advertised.

As in other cases, I would ask "what happens overseas ?" I have no doubt that German and French railways have OHLE failures, but I rather doubt that they are as frequent as in the UK.

I would say this is the first ‘major’ incident of the newly electrified sections, so overall reliability has been good.  Had this sort of thing happened once a week since last summer I could sympathise with your views.

I doubt many folk in Germany and France will get to hear about this particular incident, so, as Stuving suggested a few months ago, just because you don’t hear about it doesn’t mean it doesn’t happen.

This particular failure, of a defective insulator may indeed be as rare you suggest. However OHLE issues causing significant delays seem to occur most weeks.


I was shown some photos of the offending insulator today.  It was type that holds both the registration arm and supports the catenary.

It has a glass reinforced plastic (GRP) centre core with a polymeric shed set on the outside with metal fixtures at each end, the insulator was split longitudinally from meat fixture to metal fixture, there is quite a lot of mechanical and electrical stress on these insulators.

Its not understood yet what casued it to fail, it will be sent away for "post mortum" and if its felt nessesary others in the same batch will be recovered from the system and sent away analisiys.


Faults like this are not just consighned to the "oh well s#!t happens" investigations are done and if its felt its a bad batch they will be replaced.


Actual OLE component failures Nationally are actually quite rare, I know I see the incident data and reports for actual equipment failures
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Mark Carne 26 June 2015 - "The challenges of delivering myriad improvement projects while still running a railway seven days a week were simply overwhelming".
Western Pathfinder
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« Reply #2758 on: May 24, 2018, 10:42:54 am »

This from earlier today shows GWR performance figures
http://orr.gov.uk/__data/assets/pdf_file/0003/27759/passenger-freight-performance-2017-18-q4.pdf.
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Jason
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« Reply #2759 on: May 25, 2018, 09:42:19 am »

Freddie Starr ate my track...

Due to urgent repairs to the track between Ealing Broadway and Hayes & Harlington trains have to run at reduced speed on some lines towards Slough.
Impact: Train services running through these stations may be delayed or revised. Disruption is expected until 14:00 25/05.
Customer Advice:
London Underground are conveying passengers between London Paddington and Ealing Broadway in both directions until further notice. Arrangements have been made for Great Western Railway rail tickets to be accepted for these journeys.
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