Deleted
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Post by Deleted on Mar 15, 2009 23:30:08 GMT
A while ago I heard (can't remember where) that the north end of the Victoria line will be closed for around two weeks to replace the crossover outside Walthamstow Central. This will obviously entail complete closure north of Seven Sisters, because of the lack of reversing points north of there.
Can anyone confirm this is still the plan, and if so when the closure will take place - I believe February 2010 was mentioned?
A supplementary question is what frequency of service can be operated on the remainder of the line with all trains reversing at Seven Sisters?
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mrfs42
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Post by mrfs42 on Mar 16, 2009 0:01:53 GMT
A supplementary question is what frequency of service can be operated on the remainder of the line with all trains reversing at Seven Sisters? I've got a couple of Timetable notices covering that situation; I'll have a mooch through the library and post some details later. From memory, if there are too many trains to be comfortably accomodated below Seven Sisters there are a greater number of trains run to Northumberland Park, as ety rather than staff. |
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Rich32
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Post by Rich32 on Mar 16, 2009 1:11:58 GMT
A supplementary question is what frequency of service can be operated on the remainder of the line with all trains reversing at Seven Sisters? An educated guess would suggest a 5 min frequency tops, with a few gaps for service recovery but I'm sure MRFS will be able to give a more reliable answer. |
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towerman
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Post by towerman on Mar 16, 2009 1:17:20 GMT
Trains would probably run to Northumberland Pk to reverse,it has 4 reception roads.
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mrfs42
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Post by mrfs42 on Mar 16, 2009 9:21:45 GMT
A supplementary question is what frequency of service can be operated on the remainder of the line with all trains reversing at Seven Sisters? An educated guess would suggest a 5 min frequency tops, with a few gaps for service recovery but I'm sure MRFS will be able to give a more reliable answer. 4 minutes, according to the notes I've got on TTN 56/07 (16/7 June); I've not got a copy, but I guess that the reversers would cycle through 52/63/53/62 road reversing with additional trip scheduled to the staff platform. As an aside; I've got very few Victoria TTNs for research - if anyone has any I'd give them a welcome home. ;D |
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Post by londonstuff on Mar 16, 2009 12:48:45 GMT
Having no knowledge of this whatsoever, would it really take 2 weeks of 24/7 work to replace a scissors crossover?
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mrfs42
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Post by mrfs42 on Mar 16, 2009 13:05:51 GMT
I think you'll find the scissors crossover would be part of the work; I'm sure there are other works for the Victoria Line Upgrade planned - signal equipment rooms being upgraded and other associated work that can only be done when there is an absolute possession - test runs of the 09TS under the new signalling system spring to mind as a possible.
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Post by glasgowdriver on Mar 16, 2009 20:29:21 GMT
i seen the 09 stock pass thro kings cross on the cameras at the weekend looked well "sexy"
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Tom
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Post by Tom on Mar 16, 2009 23:22:34 GMT
Having no knowledge of this whatsoever, would it really take 2 weeks of 24/7 work to replace a scissors crossover? Not outside, but in a tunnel it could easily take that time. IIRC the service was suspended Victoria - Brixton for a similar period during summer 2000 for renewal of the scissors at Brixton. |
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Deleted
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Post by Deleted on Mar 19, 2009 20:09:12 GMT
4 minutes, according to the notes I've got on TTN 56/07 (16/7 June); I've not got a copy, but I guess that the reversers would cycle through 52/63/53/62 road reversing with additional trip scheduled to the staff platform. TTN 56/07 had reversing trains alternating between 62 and 63 roads, with 53 road for staff trains at 20" intervals and 52 road for depot starters and stablers. Each 20" period had trains for 62/63/62/63/53, with 8" given for reversal from platform 4 to 5. |
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mrfs42
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Post by mrfs42 on Mar 19, 2009 21:50:00 GMT
4 minutes, according to the notes I've got on TTN 56/07 (16/7 June); I've not got a copy, but I guess that the reversers would cycle through 52/63/53/62 road reversing with additional trip scheduled to the staff platform. TTN 56/07 had reversing trains alternating between 62 and 63 roads, with 53 road for staff trains at 20" intervals and 52 road for depot starters and stablers. Each 20" period had trains for 62/63/62/63/53, with 8" given for reversal from platform 4 to 5. Although I cheekily appealed for Vic. TTNs; the beauty of the modern Vic working is that it is so (I hesitate to use the word predictable, as that isn't quite what I'm wanting to convey) <drums fingers> almost formulaic - although it wasn't always the case - there seems to be a distinct element of randomness throughout most of the '70s Christmas/Bank Holiday TTNs - there is the occasional one that doesn't quite fit the standard pattern but it doesn't make connections. I've checked the whole of the decade and network, most odd and part of the interest. |
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Post by Deleted on Mar 22, 2009 11:04:23 GMT
I hope this isn't the case; trains leave Walthamstow with people standing during the peaks!!! Imagine everyone trying to cram onto the National Express trains in the hope of avoiding a rail replacement bus.
Why February though? Surely a summer, when everyone's jetting off to somewhere sunny and not riding the Vic, is a better bet?
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Chris M
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Post by Chris M on Mar 22, 2009 15:15:48 GMT
on one of the email groups I read there was suggestion that Christmas/New Year would be a better time to do it. However it does have to be done at some point and you can't please everyone
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Oracle
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Post by Oracle on Mar 22, 2009 18:42:52 GMT
it does have to be done at some point ;D |
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Post by Deleted on Mar 23, 2009 16:27:29 GMT
Boom, boom!
Thanks to all for all the info - presumably there are no thoughts of providing extras between the south end and King's Cross?
I remember that even with the low traffic levels of the early 80s a KX reverser would leave the NB platform there pretty busy, and suspect that doing so now and tipping out would probably cause more delays than running all trains Brixton to Seven Sisters.
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