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Post by Dstock7080 on Feb 24, 2011 13:19:57 GMT
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cso
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Post by cso on Feb 24, 2011 13:30:07 GMT
Why not use a 67ts picture rather than an 09ts?
I must admit, I always thought there was something to stop you opening the doors on a moving train...
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Deleted
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Post by Deleted on Feb 24, 2011 13:30:34 GMT
Well, considering the 1967 tube stock aren't fitted with CSDE... not hard to do. I shan't speculate on the reason, though.
CSO; That's what I thought. The Beeb love using pics of 67s!
On the older stocks, opening the doors only drops the pilot light, which prevents traction being drawn. Not sure about the 90s and more recent stocks.
However, CSDE generally prevents it as the train shan't be within a CSDE loop of sorts at the time.
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North End
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Post by North End on Feb 24, 2011 14:08:31 GMT
Well, considering the 1967 tube stock aren't fitted with CSDE... not hard to do. I shan't speculate on the reason, though. CSO; That's what I thought. The Beeb love using pics of 67s! On the older stocks, opening the doors only drops the pilot light, which prevents traction being drawn. Not sure about the 90s and more recent stocks. However, CSDE generally prevents it as the train shan't be within a CSDE loop of sorts at the time. On a 95 stock, if the train picks up the data system signal (CSDE), the door buttons become enabled subject to speed sensing. Not sure exactly what the maximum speed is, but it's well below 10 mph. If the pilot light is lost, motoring is inhibited however brake release is still possible. I would *assume* that on a 67 stock, there is speed sensing but no CSDE.
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Ben
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Post by Ben on Feb 24, 2011 14:17:25 GMT
The potential problem of no csde on the vic was mentioned by the RMT a year or so ago. Very ironic.
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SE13
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Post by SE13 on Feb 24, 2011 14:49:02 GMT
I see the subStandard are scandalising it again with their headline on it.
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Post by Tomcakes on Feb 24, 2011 15:02:41 GMT
The potential problem of no csde on the vic was mentioned by the RMT a year or so ago. Very ironic. Wasn't that after one of their members was P45d for pressing the wrong button then trying to pretend it didn't happen...?
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Ben
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Post by Ben on Feb 24, 2011 15:12:25 GMT
Indeedee!
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Deleted
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Post by Deleted on Feb 24, 2011 16:00:16 GMT
'One set of doors at the rear of the train opened. Driver error is suspected.'
One set of doors isn't normal door opening... and I don't think you can butterfly the doors from inside can you now?
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Deleted
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Post by Deleted on Feb 24, 2011 17:23:39 GMT
If the RMT blame management for this one, then that'll confirm my view of them!
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Post by auxsetreq on Feb 24, 2011 17:53:21 GMT
Can a Vic driver tell us how the doors on a 67 work? Is it possible to select the last set of doors not to open up on the rear car? Like we guards used to do on the crew operated stock. All I can think of is the last set of doors on the rear car can be selectively cut out in the case of a platform under-run and cutting them back in again in between stations could cause them to open. But that's conjecture.
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rincew1nd
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Post by rincew1nd on Feb 24, 2011 23:01:04 GMT
Why not use a 67ts picture rather than an 09ts? I've just had a peek, no picture on the story now and it mentions specifically that it was a train of 67 stock. There's also a link to a story about the 09 stock telling how wonderful they are etc...
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Deleted
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Post by Deleted on Feb 24, 2011 23:23:13 GMT
londonist.com/2011/02/doors-open-on-moving-tube-train.php - This article goes on to speculate about train doors being opened at speed so just to clarify, if Correct Side Door Enable is not fitted to the 69 stock, is there some kind of speed-sensing mechanism instead? (I'm afraid I'd rather trust information from here than comment #1 in that article by "Bob" (hopefully not Crow?)
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Deleted
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Post by Deleted on Feb 24, 2011 23:43:39 GMT
londonist.com/2011/02/doors-open-on-moving-tube-train.php - This article goes on to speculate about train doors being opened at speed so just to clarify, if Correct Side Door Enable is not fitted to the 69 stock, is there some kind of speed-sensing mechanism instead? (I'm afraid I'd rather trust information from here than comment #1 in that article by "Bob" (hopefully not Crow?) Yes 67 stock do have speed sensing. The news this evening said it was being put down to driver error.
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Deleted
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Post by Deleted on Feb 24, 2011 23:45:17 GMT
No speed sensing on 67TS. A similar event happened recently with a C stock too. Just shows that the Victoria Line was built on the cheap - stations environs cut back etc. No doubt similar events on the Victoria have occured over the years but a) there hasn't been so much social media and b) politics hasn't been so much against the staff.
Anyhow, no one really knows what really happened so far.
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Post by 21146 on Feb 25, 2011 0:26:27 GMT
Before this thread is locked as an LU "incident", happy days in the 1970s/80s when ATOs would use the Allan West controllers to open the train doors as the train was coming to a halt and, if prepared, you could alight from a still-moving train.
With all the obsession with dwell-time why are all these OPO lines having such a long period between trains stopping and doors opening, which was first inflicted on us by the awful 92TS?
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Post by edwin on Feb 25, 2011 2:03:24 GMT
^^Actually i've seen the doors open when the train is still moving on the 95TS. Doors can open pretty quick on the 09TS too but not before the train stops.
The worst in that regard is the 96TS...
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mrfs42
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Post by mrfs42 on Feb 25, 2011 2:11:10 GMT
With all the obsession with dwell-time why are all these OPO lines having such a long period between trains stopping and doors opening, which was first inflicted on us by the awful 92TS? I think it is partly to do with how the pilot light is proved. I have a sneaking suspicion that in the more modern stocks the VOBC requires all doors in series rather than each car side in series. This is only a supposition, admittedly.
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Post by seaeagle on Feb 25, 2011 15:58:25 GMT
Anyhow, no one really knows what really happened so far. I am aware of exactly what happened, and although I'm not going to go into details on a public forum, all I will say is that the train was at a signal stop.
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Post by auxsetreq on Feb 25, 2011 17:51:38 GMT
Anyhow, no one really knows what really happened so far. I am aware of exactly what happened, and although I'm not going to go into details on a public forum, all I will say is that the train was at a signal stop. Fair enough, but can you tell us how it is possible for a driver, though not not this particular one, to open one set of doors remotely at the rear of the train in between stations from we must assume is his cab? Is that technically possible on a 67? I'm baffled. Though not so baffled as the ES gleefully reporting it as "driver error"...........As reported, it sounds like a door irregularity or the operation of external kit...... www.thisislondon.co.uk/standard/article-23926353-commuter-terror-as-tube-doors-open-on-moving-victoria-line-train.do
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Post by seaeagle on Feb 25, 2011 19:32:50 GMT
I am aware of exactly what happened, and although I'm not going to go into details on a public forum, all I will say is that the train was at a signal stop. Fair enough, but can you tell us how it is possible for a driver, though not not this particular one, to open one set of doors remotely at the rear of the train in between stations from we must assume is his cab? Is that technically possible on a 67? I'm baffled. It's not possible, and that's not what happend.
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SE13
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Post by SE13 on Feb 25, 2011 22:00:53 GMT
Ours is not to speculate what happened, we can but go on the exclusive reporting of the Standard and their "passengers in terror" theory, or the more realistic "something happened" as reported by Auntie Beeb.
In view of that, the mod hat has to go on, and say that we can only talk about known FACTS (yes, that's facts for the well know media outlet) of the incident, no speculation or "x, y & z are to blame. Let those that need to sensationalise the story carry the can for reporting inaccuracies, and leave it at that.
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Deleted
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Post by Deleted on Feb 27, 2011 21:20:06 GMT
Is there a sort of "Zero Velocity Switch" on the door control circuit, which detects that there is a braking conmmand and that the brakes have actually applied (As in this case of a Red Signal Stop), and then permits the doors to be opened? Perhaps someone could fill in the details.
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Post by superteacher on Feb 27, 2011 21:58:19 GMT
The doors on 2009 stock can (and have opened) before the train comes to a complete stop (half a second or so).
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Deleted
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Post by Deleted on Feb 27, 2011 22:03:54 GMT
Yes, but if the train is still above a certain speed, the doors stop opening until the train becomes stationary.
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Post by singaporesam on Feb 27, 2011 23:48:22 GMT
Interestingly , the incident is not on the RAIBs list of investigations, so there must have been no risk of passengers being killed or seriously injured .
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Deleted
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Post by Deleted on Feb 27, 2011 23:51:47 GMT
Interestingly , the incident is not on the RAIBs list of investigations, so there must have been no risk of passengers being killed or seriously injured . Probably not, since the train was apparently at a signal stop, and so this can hardly be called an "accident"...
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Chris M
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Post by Chris M on Feb 28, 2011 2:25:37 GMT
The RAIB do investigate serious incidents that are not accidents (and occurrences that have the potential to be accidents or serious incidents). They can also choose to investigate anything else if they believe it will lead to an improvement in railway safety.
They are not always the quickest at updating their website, nor do events necessarily appear there in chronological order, e.g. they added the 28th January incident at Brentwood to the published list a few days ago, after the 5th February incident at Halifax. As I understand it, they carry out a preliminary investigation into a large number of incidents, but they do not publish anything about incidents where the preliminary investigation concludes no further action is necessary on their part. I suspect therefore that they do not add incidents to the list until they've decided to conduct a full investigation - this will take longer for some incidents than for others. The incident happened on Wednesday evening (according to the BBC report), so unless it was immediately apparent whether a full investigation was required (unlikely imho, if the BBC report accurately reflects what happened) or not required (given the number of possible factors that would need to be considered and the potential seriousness had the worst happened, I think this would be unlikely too) then they may not have had time to make a decision by the time whoever updates the website went home on Friday. I think the only certain thing we can say is that if they haven't said they've opened an investigation by this time next month then they almost certainly wont be doing so. I can't remember for certain, but I think that even after the Grayrigg accident (where there would have been no doubt a full investigation was required) I think it was a couple of days before they announced their investigation so that they had the results of their preliminary investigation.
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Post by 21146 on Jul 12, 2011 21:25:08 GMT
No wonder Victoria Line trains are departing with doors open! (ES - 12/7/11).
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Deleted
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Post by Deleted on Jul 12, 2011 21:48:54 GMT
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