class411
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Post by class411 on Mar 20, 2014 18:49:46 GMT
Can anyone shed any light on the reason for the unusual platform allocation at White City?
There is a crossover just after East Acton (going East) and one just before Shepherds Bush to allow for it.
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Post by Dmitri on Mar 20, 2014 18:56:40 GMT
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Post by Deleted on Mar 20, 2014 19:28:40 GMT
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Post by norbitonflyer on Mar 21, 2014 0:13:36 GMT
Can anyone shed any light on the reason for the unusual platform allocation at White City? There is a crossover just after East Acton (going East) and one just before Shepherds Bush to allow for it. From the history, I think it would be more accurate to say that the East Acton crossover and the right hand running at White City is to compensate for the anticlockwise loop between White City and Shephrds Bush! |
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Post by brigham on Mar 21, 2014 0:17:02 GMT
A classic confusion of Cause and Effect!
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Post by raynerslanemainman on Mar 21, 2014 7:06:34 GMT
If you need a geographical map of the underground use this website link: carto.metro.free.fr/metro-tram-london/
Just scroll down and find the station you want.
It show the layout of the tracks and depots that im sure is what you actually wanted. |
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Post by programmes1 on Mar 21, 2014 9:21:21 GMT
Can anyone shed any light on the reason for the unusual platform allocation at White City? There is a crossover just after East Acton (going East) and one just before Shepherds Bush to allow for it. Perhaps a look in the working timetable may help? |
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class411
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Post by class411 on Mar 21, 2014 9:35:37 GMT
If you need a geographical map of the underground use this website link: carto.metro.free.fr/metro-tram-london/
Just scroll down and find the station you want.
It show the layout of the tracks and depots that im sure is what you actually wanted. No, I've already got that (as anyone who read my OP could have guessed from my mentioning the location of the crossovers). And I have a photo of the crossover near East Acton (that I can actually see if I stand on tiptoe whilst crossing from the nearby bridge. I can see exactly how the trackwork is laid out. My question was why this was been done. Thanks to Dmitri for providing a link to a comprehensive answer. |
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class411
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Post by class411 on Mar 21, 2014 9:37:11 GMT
Can anyone shed any light on the reason for the unusual platform allocation at White City? There is a crossover just after East Acton (going East) and one just before Shepherds Bush to allow for it. Perhaps a look in the working timetable may help? How?  |
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class411
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Post by class411 on Mar 21, 2014 9:38:57 GMT
A classic confusion of Cause and Effect! If you used the quote button as recommended it would be possible to know who you think is confused.  |
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Post by norbitonflyer on Mar 21, 2014 10:05:33 GMT
If you used the quote button as recommended it would be possible to know who you think is confused. Like this? - it took several attempts to get the nested quotes right! There is a crossover just after East Acton (going East) and one just before Shepherds Bush to allow for it. ...........more accurate to say that the East Acton crossover ....is to allow for [the older one] at Shepherds Bush! A classic confusion of Cause and Effect! Perhaps a look in the working timetable may help? More confusion! I don't think the working timetable sheds any light on the reason for right hand running at White City which is, I believe, what 413 (4CAP?) is referring to. The East Acton flyover and the subterrenaean "rollover" (or diveunder) at Shepherds Bush are not "crossovers" in the strict sense of a set of points allowing a train to switch from the eastbound to the westbound or vice versa, like this www.shutterstock.com/pic-621485/stock-photo-railway-track-cross-over.html. There are such crossovers at White City to allow trains from either direction to reverse there, as is indeed required by the working timetable. |
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Post by maxym on Mar 21, 2014 11:48:47 GMT
Excellent. A neat reminder of how much good stuff there is on Tubeprune's site. |
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Post by programmes1 on Mar 21, 2014 14:59:01 GMT
Perhaps a look in the working timetable may help? How? I am no expert but the WTT would show the frequency of the train service which might have an impact on using platforms and crossover's or does not not happen. |
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Post by programmes1 on Mar 21, 2014 15:00:18 GMT
Excellent. A neat reminder of how much good stuff there is on Tubeprune's site. Yes there is some really good stuff on there now all we need is for Tubeprune to bring it up to date. |
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Post by programmes1 on Mar 21, 2014 15:02:35 GMT
Perhaps a look in the working timetable may help? More confusion! I don't think the working timetable sheds any light on the reason for right hand running at White City which is, I believe, what 413 (4CAP?) is referring to. The East Acton flyover and the subterrenaean "rollover" (or diveunder) at Shepherds Bush are not "crossovers" in the strict sense of a set of points allowing a train to switch from the eastbound to the westbound or vice versa, like this www.shutterstock.com/pic-621485/stock-photo-railway-track-cross-over.html. There are such crossovers at White City to allow trains from either direction to reverse there, as is indeed required by the working timetable. [/quote] That is correct and I think most people know why the platforms are the way they are well at least the reason for the change over in the direction of tracks. If that was what the OP meant he did not make himself clear well not to me that's why I mentioned the WTT.
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Post by bassmike on Mar 21, 2014 16:43:14 GMT
A reason for the R/H running is that the origional line from S/B up to the depot was as sharp as could reasonably be used as a running line, and to put in another curve to maintain the L/h running would make it impossibly sharp.
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Post by John Tuthill on Mar 21, 2014 17:51:51 GMT
A reason for the R/H running is that the origional line from S/B up to the depot was as sharp as could reasonably be used as a running line, and to put in another curve to maintain the L/h running would make it impossibly sharp. The westbound bend out of Shepherds Bush, is still the sharpest ben d on the U/G |
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class411
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Post by class411 on Mar 21, 2014 19:16:24 GMT
That is correct and I think most people know why the platforms are the way they are well at least the reason for the change over in the direction of tracks. You have to be joking! It's a fairly obscure reason based on details from some considerable time in the past. |
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Post by programmes1 on Mar 21, 2014 19:37:59 GMT
That is correct and I think most people know why the platforms are the way they are well at least the reason for the change over in the direction of tracks. You have to be joking! It's a fairly obscure reason based on details from some considerable time in the past. Well you must be in a minority as there is plenty in print if you know where to look if you put yourself out. |
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Post by bassmike on Mar 21, 2014 21:42:05 GMT
Why do i have to be joking?  ? The answer I gave is correct and quite well documented. |
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Post by norbitonflyer on Mar 21, 2014 22:33:15 GMT
You have to be joking! It's a fairly obscure reason based on details from some considerable time in the past. Well you must be in a minority as there is plenty in print if you know where to look if you put yourself out. "Most people" and "people who read this forum" are rather different groups. If you are puzzled, this is a good forum to ask the question - someone will be more than happy to explain. And if you already know the answer, no-one is compelling you to read this thread. |
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Post by programmes1 on Mar 22, 2014 5:18:04 GMT
Why do i have to be joking? ? The answer I gave is correct and quite well documented. My post was not addressed to you or are you having a moment. |
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Post by programmes1 on Mar 22, 2014 5:19:22 GMT
Well you must be in a minority as there is plenty in print if you know where to look if you put yourself out. "Most people" and "people who read this forum" are rather different groups. If you are puzzled, this is a good forum to ask the question - someone will be more than happy to explain. And if you already know the answer, no-one is compelling you to read this thread. I am not the puzzled one there are however some who may be but I won't tell them. |
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class411
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Post by class411 on Mar 22, 2014 7:44:26 GMT
You have to be joking! It's a fairly obscure reason based on details from some considerable time in the past. Well you must be in a minority as there is plenty in print if you know where to look if you put yourself out. You said: "I think most people know why the platforms are the way they are". If you really think that 'most people' know that you are living in cloud cuckoo land. In fact, I'd very much doubt that most people using this forum know that. |
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class411
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Post by class411 on Mar 22, 2014 7:45:43 GMT
Why do i have to be joking? ? The answer I gave is correct and quite well documented. As I'm the only person who said anything about joking, I presume you are asking me, and I can promise you the 'joking' comment was not directed at you. |
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rincew1nd
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Post by rincew1nd on Mar 22, 2014 7:54:44 GMT
Can we all relax please? Its getting a bit confusing as to who is addressing whom.
Perhaps the OP could summarize their understanding and then those that know more can fill in any gaps?
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class411
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Post by class411 on Mar 22, 2014 9:00:11 GMT
Can we all relax please? Its getting a bit confusing as to who is addressing whom.Perhaps the OP could summarize their understanding and then those that know more can fill in any gaps? OK. The answer to my question appears to be that the current track layout is an artefact of a much earlier layout. Specifically that an extremely tight bend was introduced that meant that it was not possible to fit another track 'inside' that bend, which would have been necessary to maintain normal running. Another factor (I'm assuming) that no one has mentioned is that the original Wood Lane station was too close to Wood Lane to do the obvious thing and run the new track to the left (looking westbound) and so the rather messy current solution was devised. I suspect there was an enormous amount of humming and ha-ing and scratching of heads with many other possibilities considered before it was finally adopted. Anyway, thank you to everyone who has contributed. From various thread here I've learned a lot about several things over the past three days that have been puzzling me for ages. |
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Post by Dmitri on Mar 25, 2014 11:59:21 GMT
Thanks to Dmitri for providing a link to a comprehensive answer.  This one may be of interest, too. |
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Post by programmes1 on Mar 25, 2014 17:21:25 GMT
Thanks to Dmitri for providing a link to a comprehensive answer. may be of interest, too. Dmitri thanks again this will help class413. |
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Post by Deleted on Apr 21, 2014 22:20:56 GMT
The reason for the "right-hand running", as has been pointed out, was because of the route to the depot entrance at Wood Lane. The extension west of Shepherds Bush and Wood Lane was to serve a new LCC housing estate.
The western extensions of the Central Line were built by the GWR, who had the land, but it has always puzzled me, given that White City has 3 platforms, as to why interlocking signalling was not used to restore normal running within the confines of the WC station site, which would not have required the fly-under between WC and East Acton.
Maybe it was a GWR training project?
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? The answer I gave is correct and quite well documented.
