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| Cambrian line signalling 22/10/2024 at 11:33 #158936 | |
clive
2789 posts |
I don't want to talk about the causes of last night's crash until we actually know what happened. But I do have one question. I thought the entire line was ERTMS everywhere west of the junction at Shrewsbury. However, a witness has reported the train passing a signal unable to stop. Am I wrong? Log in to reply |
| Cambrian line signalling 22/10/2024 at 11:49 #158938 | |
Steamer
3984 posts |
The whole line is ERTMS, for 'signal' read 'block marker'.
"Don't stress/ relax/ let life roll off your backs./ Except for death and paying taxes/ everything in life.../ is only for now." (Avenue Q) Log in to reply |
| Cambrian line signalling 22/10/2024 at 11:52 #158940 | |
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TUT
532 posts 
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I'm not aware of any signals at Talerddig either https://www.flickr.com/photos/llangollen_signalman/37333107380/ Unless the witness is seeing in their mind's eye FRLs on the blocks in the URS I would imagine the red signal referred to is one of those that trains are always being held at according to PA announcements, whether it's a semaphore, a stop board, a block marker or an actual red signal. Log in to reply |
| Cambrian line signalling 22/10/2024 at 17:49 #158941 | |
jc92
3685 posts
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clive in post 158936 said:I don't want to talk about the causes of last night's crash until we actually know what happened. But I do have one question.Is this a case of Chinese whispers, where the train has passed a block marker without a movement authority (I.e. a SPAD) but explaining that to the public is complicated compared to "passed a red signal" and the witness has then gone from there? "We don't stop camborne wednesdays" Log in to reply |
| Cambrian line signalling 22/10/2024 at 18:10 #158942 | |
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TUT
532 posts
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jc92 in post 158941 said:clive in post 158936 said:Obviously I don't know which witness statement clive was referring to, but for example this BBC News article has the followingI don't want to talk about the causes of last night's crash until we actually know what happened. But I do have one question.Is this a case of Chinese whispers, where the train has passed a block marker without a movement authority (I.e. a SPAD) but explaining that to the public is complicated compared to "passed a red signal" and the witness has then gone from there? Quote: Anthony Hurford, a passenger on the Shrewsbury-bound train, said he felt "pretty shell-shocked". Last edited: 22/10/2024 at 18:10 by TUT Reason: None given Log in to reply |
| Cambrian line signalling 22/10/2024 at 19:59 #158945 | |
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clive
2789 posts |
TUT in post 158942 said:Yes, that's the one. Log in to reply |
| Cambrian line signalling 23/10/2024 at 08:11 #158946 | |
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kbarber
1742 posts |
An RAIB press release states that the collision occurred approx. 800 metres west of Talerddig loop, at a speed of approximately 15mph. It goes on to say: "RAIB’s initial inspection of the track on approach to the point of collision found evidence that wheel/rail adhesion was relatively low, suggesting that the train may have entered into wheel slide when braking. This will be an area of ongoing investigation." The 'signal' referred to is indeed a block marker not a light on a stick or an uppy-downy thing. Log in to reply |
| Cambrian line signalling 23/10/2024 at 11:32 #158947 | |
moonraker
370 posts |
This was my first thought. Having been involved in an accident at Slough with a Turbo 30 years ago this year in November. Thoughts are with everybody involved
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