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Author Topic: Infrastructure problems in Thames Valley causing disruption elsewhere - ongoing, since Oct 2014  (Read 1256483 times)
TaplowGreen
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« Reply #4065 on: May 18, 2023, 13:30:52 »

Delays to services between Slough and London Paddington

Due to a points failure between Slough and London Paddington the line towards London Paddington bound high speed is blocked.

Train services running to and from these stations may be delayed by up to 30 minutes. Disruption is expected until 14:00 18/05.
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rower40
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« Reply #4066 on: May 18, 2023, 14:34:54 »

Some queues of trains building up on the Up Main at Slough West, and the Down Relief at Dolphin Jn. And there aren’t many class 9 trains, so it looks like the Elizabeth Line service had been thinned out.
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TaplowGreen
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« Reply #4067 on: May 18, 2023, 15:15:35 »

Some queues of trains building up on the Up Main at Slough West, and the Down Relief at Dolphin Jn. And there aren’t many class 9 trains, so it looks like the Elizabeth Line service had been thinned out.

Disruption now till 1700

Elizabeth Line suspended West Drayton -Reading.
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TaplowGreen
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« Reply #4068 on: May 19, 2023, 13:23:17 »

Due to the emergency services dealing with an incident between London Paddington and Didcot Parkway, all lines are blocked.

Train services running to and from these stations may be cancelled or delayed by up to 90 minutes.

Disruption is expected until 14:00.
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« Reply #4069 on: May 19, 2023, 13:59:57 »

Some queues of trains building up on the Up Main at Slough West, and the Down Relief at Dolphin Jn. And there aren’t many class 9 trains, so it looks like the Elizabeth Line service had been thinned out.

Disruption now till 1700

Elizabeth Line suspended West Drayton -Reading.

I was travelling back from Windsor to Reading at about 5pm yesterday, and at that time, most trains running from Windsor & Eton Central to Slough were cancelled, due, I was told, to this points failure. I thought that line ran completely independently from the main lines through Slough, so don't understand why this points failure impacted on it.

Fortunately I had my Brompton and could cycle to Slough, where the Elizabeth line train was then (about 5.30pm) running normally.
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IndustryInsider
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« Reply #4070 on: May 19, 2023, 14:56:52 »

Although it’s largely independent of the main lines it’s a fully signalled route and there’s also the siding which has points controlling it.  It looked like the unit had been put away in there yesterday evening as a result of whatever was wrong..
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« Reply #4071 on: May 19, 2023, 18:42:33 »

Although it’s largely independent of the main lines it’s a fully signalled route and there’s also the siding which has points controlling it.  It looked like the unit had been put away in there yesterday evening as a result of whatever was wrong..

I'm not a signalling engineer so I'm kinda guessing if one of the sets of points lost point detection in the connection onto the DN Main the DN Main and Windsor branch signals would fail safe (Red), the quick fix may have been to clamp the Windsor Branch points, the S&T (Signalling and Telegraph) to do some overriding of the interlocking to allow the DN Main return to normal, as the branch is signalled the Windsor service may have had to be suspended due to the logic of the interlocking.

I could be wrong
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Starship just experienced what we call a rapid unscheduled disassembly, or a RUD, during ascent,”
TaplowGreen
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« Reply #4072 on: May 24, 2023, 15:19:23 »



Service alteration details
Incident reported: 24 May 2023 at 15:02



Last updated

24 May 2023 at 15:12

Train operators affected

Elizabeth line
Great Western Railway
Heathrow Express
Route(s) affected
Elizabeth line between Abbey Wood and Heathrow Terminal 4 / Reading, and between Shenfield and Heathrow Terminal 5

Great Western Railway between London Paddington and Didcot Parkway / Cheltenham Spa / Hereford / Newbury / Bristol Temple Meads / Cardiff Central / Swansea / Carmarthen / Weston-super-Mare / Frome / Exeter St Davids / Plymouth / Penzance

Heathrow Express between London Paddington and Heathrow Terminal 5

Description
A fault with the signalling system between Acton Main Line and Ealing Broadway is causing disruption to journeys running between these stations. As a result, trains may be cancelled, delayed by up to 20 minutes or revised.

Disruption is expected until 1700
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GBM
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« Reply #4073 on: May 25, 2023, 07:47:06 »

05:10 Bristol Temple Meads to London Paddington due 07:37
05:10 Bristol Temple Meads to London Paddington due 07:37 will be terminated at Reading.
It will no longer call at Thatcham, Theale and London Paddington.
It has been delayed at Pewsey and is now 27 minutes late.

The return journey now starting from Reading.

This is due to a fault with the signalling system.
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« Reply #4074 on: May 25, 2023, 19:34:35 »

Urgent repairs are needed to the track between Heathrow Airport Terminals 2 & 3 and Hayes & Harlington.

As a result of this, Elizabeth line services may be cancelled, delayed by up to 10 minutes or revised. Heathrow Terminal 5 will not be served.

Disruption is expected until the end of the day.
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TaplowGreen
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« Reply #4075 on: June 12, 2023, 17:46:29 »

Delays to services between London Paddington and Reading

Due to a speed restriction because of severe weather between London Paddington and Reading trains have to run at reduced speed on all lines.

Train services running to and from these stations will be delayed by up to 30 minutes. Disruption is expected until 19:00 12/06.
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TaplowGreen
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« Reply #4076 on: June 13, 2023, 14:37:14 »

Cancellations to services between London Paddington and Reading

Due to a points failure between London Paddington and Reading fewer trains are able to run on some lines towards Reading.

Train services running to and from these stations may be cancelled, delayed by up to 15 minutes or revised. Disruption is expected until 16:00 13/06.
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TaplowGreen
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« Reply #4077 on: June 14, 2023, 06:50:58 »

Cancellations to services between Maidenhead and Marlow

Due to a fault with the signalling system between Maidenhead and Marlow the line is closed.

Train services running to and from these stations may be cancelled or delayed. Disruption is expected until 08:45 14/06.
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TaplowGreen
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« Reply #4078 on: June 14, 2023, 07:37:51 »

Thames Valley branches doing well this morning............

Cancellations to services between Slough and Windsor & Eton Central

Due to a fault on this train between Slough and Windsor & Eton Central all lines are closed.

Train services running to and from these stations may be cancelled or delayed by up to 30 minutes. Disruption is expected until 08:30 14/06.
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TaplowGreen
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« Reply #4079 on: June 20, 2023, 10:26:42 »

Bus to Taplow it is then!

Cancellations to services between Reading and London Paddington
Due to a fault with the signalling system between Reading and London Paddington trains have to run at reduced speed on some lines.

Train services running to and from these stations may be cancelled or delayed. Disruption is expected until 10:30 20/06.

Customer Advice
London Buses are conveying passengers via any reasonable route until further notice.
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