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#42
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On 2015-03-07 21:25:52 +0000, Recliner said:
Paul Corfield wrote: On Fri, 06 Mar 2015 20:06:01 +0000, Mizter T wrote: Easy... we don't need to be like that on here. I don't see why posting about a failed train and the knock-on effects is out of scope of this newsgroup. I agree - I really don't understand what has triggered this bout of "posting rage" from two normally very "placid" and polite posters. Most odd. And no one has to reply to try to justify their respective positions as I don't want to read yet more backbiting. One question about the actual incident: do you know how long the ELL was completely shut down? If it was for just a matter of minutes, then it's not surprising they didn't reverse the services at a crossover, but if it was hours, then that's a different matter. I believe it was a few hours. I checked and it was at about three hours before the status changed to part-suspended. I flagged this up becuase I walked through Dalston Junction and found the station shut. E. |
#43
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On 2015-03-07 23:38:01 +0000, Paul Corfield said:
I'm obviously guessing here but there are not many refuge sidings on the ELL core section so you really need to get trains beyond Surrey Quays to be able to hide them away somewhere. I was wondering when watching it being built what they would do for contingency - it seems very little. The elevated section down to Shoreditch used to carry four tracks and one would have thought a siding could have been put in there. E. |
#44
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eastender wrote:
On 2015-03-07 23:38:01 +0000, Paul Corfield said: I'm obviously guessing here but there are not many refuge sidings on the ELL core section so you really need to get trains beyond Surrey Quays to be able to hide them away somewhere. I was wondering when watching it being built what they would do for contingency - it seems very little. The elevated section down to Shoreditch used to carry four tracks and one would have thought a siding could have been put in there. Yes, they used the wider embankment for the new stations, but could have put a reversing siding between stations. But it does seem to be the modern policy to keep tracks as simple as possible, as points and crossovers are themselves vulnerable to failures. For this reason, I think many tube lines now have fewer crossovers than before. |
#45
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On 2015-03-08 10:45:02 +0000, Recliner said:
eastender wrote: On 2015-03-07 23:38:01 +0000, Paul Corfield said: I'm obviously guessing here but there are not many refuge sidings on the ELL core section so you really need to get trains beyond Surrey Quays to be able to hide them away somewhere. I was wondering when watching it being built what they would do for contingency - it seems very little. The elevated section down to Shoreditch used to carry four tracks and one would have thought a siding could have been put in there. Yes, they used the wider embankment for the new stations, but could have put a reversing siding between stations. But it does seem to be the modern policy to keep tracks as simple as possible, as points and crossovers are themselves vulnerable to failures. For this reason, I think many tube lines now have fewer crossovers than before. By extension, I was reading this piece in the Guardian the other day: http://www.theguardian.com/politics/...y-into-the-air The sell-off of Broad Street station and space is one example of dreadfully short-sighted and cut price deals for developers. Imagine how the railway would look now with a modern spur down to Broad Street. E. |
#46
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eastender wrote:
On 2015-03-08 10:45:02 +0000, Recliner said: eastender wrote: On 2015-03-07 23:38:01 +0000, Paul Corfield said: I'm obviously guessing here but there are not many refuge sidings on the ELL core section so you really need to get trains beyond Surrey Quays to be able to hide them away somewhere. I was wondering when watching it being built what they would do for contingency - it seems very little. The elevated section down to Shoreditch used to carry four tracks and one would have thought a siding could have been put in there. Yes, they used the wider embankment for the new stations, but could have put a reversing siding between stations. But it does seem to be the modern policy to keep tracks as simple as possible, as points and crossovers are themselves vulnerable to failures. For this reason, I think many tube lines now have fewer crossovers than before. By extension, I was reading this piece in the Guardian the other day: http://www.theguardian.com/politics/...y-into-the-air The sell-off of Broad Street station and space is one example of dreadfully short-sighted and cut price deals for developers. Imagine how the railway would look now with a modern spur down to Broad Street. I'd have though the Broadgate office development is far more usefu. And if Broad St station was still open, the amazingly successful conversion of the ELL to the Overground, with the link to H&I, would never have happened. |
#47
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On 2015\03\08 10:45, Recliner wrote:
eastender wrote: On 2015-03-07 23:38:01 +0000, Paul Corfield said: I'm obviously guessing here but there are not many refuge sidings on the ELL core section so you really need to get trains beyond Surrey Quays to be able to hide them away somewhere. I was wondering when watching it being built what they would do for contingency - it seems very little. The elevated section down to Shoreditch used to carry four tracks and one would have thought a siding could have been put in there. Yes, they used the wider embankment for the new stations, but could have put a reversing siding between stations. But it does seem to be the modern policy to keep tracks as simple as possible, as points and crossovers are themselves vulnerable to failures. For this reason, I think many tube lines now have fewer crossovers than before. Do you mean crossovers suffer failures which prevent them from being used as crossovers, or that they suffer failures which prevent the straight railway from being used at all? If the former, that is no reason to get rid of crossovers, no matter how often they fail. But here it seems the crossovers were all there, they just preferred to shut the whole railway rather than use them. |
#48
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On 2015-03-08 15:02:01 +0000, Recliner said:
eastender wrote: On 2015-03-08 10:45:02 +0000, Recliner said: eastender wrote: On 2015-03-07 23:38:01 +0000, Paul Corfield said: I'm obviously guessing here but there are not many refuge sidings on the ELL core section so you really need to get trains beyond Surrey Quays to be able to hide them away somewhere. I was wondering when watching it being built what they would do for contingency - it seems very little. The elevated section down to Shoreditch used to carry four tracks and one would have thought a siding could have been put in there. Yes, they used the wider embankment for the new stations, but could have put a reversing siding between stations. But it does seem to be the modern policy to keep tracks as simple as possible, as points and crossovers are themselves vulnerable to failures. For this reason, I think many tube lines now have fewer crossovers than before. By extension, I was reading this piece in the Guardian the other day: http://www.theguardian.com/politics/...y-into-the-air The sell-off of Broad Street station and space is one example of dreadfully short-sighted and cut price deals for developers. Imagine how the railway would look now with a modern spur down to Broad Street. I'd have though the Broadgate office development is far more usefu. And if Broad St station was still open, the amazingly successful conversion of the ELL to the Overground, with the link to H&I, would never have happened. I think closing a London terminus given what we now know about population growth and demand for travel was not a good decision. But you can say that about a lot of railway closures. E. |
#49
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Basil Jet wrote:
On 2015\03\08 10:45, Recliner wrote: eastender wrote: On 2015-03-07 23:38:01 +0000, Paul Corfield said: I'm obviously guessing here but there are not many refuge sidings on the ELL core section so you really need to get trains beyond Surrey Quays to be able to hide them away somewhere. I was wondering when watching it being built what they would do for contingency - it seems very little. The elevated section down to Shoreditch used to carry four tracks and one would have thought a siding could have been put in there. Yes, they used the wider embankment for the new stations, but could have put a reversing siding between stations. But it does seem to be the modern policy to keep tracks as simple as possible, as points and crossovers are themselves vulnerable to failures. For this reason, I think many tube lines now have fewer crossovers than before. Do you mean crossovers suffer failures which prevent them from being used as crossovers, or that they suffer failures which prevent the straight railway from being used at all? If the former, that is no reason to get rid of crossovers, no matter how often they fail. They're more points to inspect, maintain, and which could wear and fail. At the least, they add to the capital and maintenance costs, and can lead to track failures. But here it seems the crossovers were all there, they just preferred to shut the whole railway rather than use them. The crossovers are on the old ELL, not the new Overground section between Whitechapel and Dalston Junction. And there aren't any reversing sidings on the new section, either, apart from the bays in Dalston Junction, even though there's room for them on the old Broad St line's wider embankment. |
#50
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eastender wrote:
On 2015-03-08 15:02:01 +0000, Recliner said: eastender wrote: On 2015-03-08 10:45:02 +0000, Recliner said: eastender wrote: On 2015-03-07 23:38:01 +0000, Paul Corfield said: I'm obviously guessing here but there are not many refuge sidings on the ELL core section so you really need to get trains beyond Surrey Quays to be able to hide them away somewhere. I was wondering when watching it being built what they would do for contingency - it seems very little. The elevated section down to Shoreditch used to carry four tracks and one would have thought a siding could have been put in there. Yes, they used the wider embankment for the new stations, but could have put a reversing siding between stations. But it does seem to be the modern policy to keep tracks as simple as possible, as points and crossovers are themselves vulnerable to failures. For this reason, I think many tube lines now have fewer crossovers than before. By extension, I was reading this piece in the Guardian the other day: http://www.theguardian.com/politics/...y-into-the-air The sell-off of Broad Street station and space is one example of dreadfully short-sighted and cut price deals for developers. Imagine how the railway would look now with a modern spur down to Broad Street. I'd have though the Broadgate office development is far more usefu. And if Broad St station was still open, the amazingly successful conversion of the ELL to the Overground, with the link to H&I, would never have happened. I think closing a London terminus given what we now know about population growth and demand for travel was not a good decision. But you can say that about a lot of railway closures. The new Overground line adds a lot more capacity than was lost when that little-used terminal finally closed. |
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