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#1
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LT strip diagrams in carriages
On Thu, 21 Feb 2008 11:37:39 +0000, "R.C. Payne"
wrote: Scott wrote: On Thu, 14 Feb 2008 15:17:26 -0000, "Graham Harrison" wrote: I was on the Circle last week and became aware of a change in the representation of underground/NR interchanges on the in car diagrams. It seemed to me that instead of indicating the places like Victoria provide access to National Rail you now get an emphasis on airport connections. How long has it been like this? When I lived in London the Victoria Line trains clevely had the diagrams always pointing in the correct direction of travel so the ones on either side of the carriage were mirror images with Brixton and Walthamstow always at the correct end. This seems to have been abandoned. When, and why? Some lines have features that cause trains to become reveresed, for example Heathrow on the Picc, Kennington (Charring Cross branch) on the Northern. In these cases, handed maps aren't going to work. Not sure about other lines, though, or whether/why they have been abandonned. Reversal can also happen with C stock that doesn't stay on the same line service all day (i.e. Circle Wimbleware or Circle Hammersmith and City). |
#2
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LT strip diagrams in carriages
"Charles Ellson" wrote in message
... When I lived in London the Victoria Line trains clevely had the diagrams always pointing in the correct direction of travel so the ones on either side of the carriage were mirror images with Brixton and Walthamstow always at the correct end. This seems to have been abandoned. When, and why? Some lines have features that cause trains to become reveresed, for example Heathrow on the Picc, Kennington (Charring Cross branch) on the Northern. In these cases, handed maps aren't going to work. Not sure about other lines, though, or whether/why they have been abandonned. Reversal can also happen with C stock that doesn't stay on the same line service all day (i.e. Circle Wimbleware or Circle Hammersmith and City). I get the impression that on all LT lines the maps on each side of the carriage are the correct way round for the direction of travel more often than they are the wrong way round. I wonder if there is an attempt to turn carriages whenever possible to keep the maps the right way round. |
#3
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LT strip diagrams in carriages
On Thu, 21 Feb 2008 21:14:43 -0000, "Mortimer" wrote:
"Charles Ellson" wrote in message .. . When I lived in London the Victoria Line trains clevely had the diagrams always pointing in the correct direction of travel so the ones on either side of the carriage were mirror images with Brixton and Walthamstow always at the correct end. This seems to have been abandoned. When, and why? Some lines have features that cause trains to become reveresed, for example Heathrow on the Picc, Kennington (Charring Cross branch) on the Northern. In these cases, handed maps aren't going to work. Not sure about other lines, though, or whether/why they have been abandonned. Reversal can also happen with C stock that doesn't stay on the same line service all day (i.e. Circle Wimbleware or Circle Hammersmith and City). I get the impression that on all LT lines the maps on each side of the carriage are the correct way round for the direction of travel more often than they are the wrong way round. I wonder if there is an attempt to turn carriages whenever possible to keep the maps the right way round. Some trains are "handed" (e.g. A stock) and arriving back at the shed the wrong way round leaves them out of correspondence with any maintenance equipment which is not easily relocated. Where handed stock was expected to be "turned the wrong way" during the day the circuit was arranged so that it went to bed the right way round but if services get disrupted this can prevent a train running through the planned daily sequence and leaving it the wrong way round. In such cases there would usually have been some provision made for the train to make an extra journey (or sometimes one less) via the same area where things went wrong (e.g. Watford triangle, Earls Court triangle, Kennington loop). |
#4
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LT strip diagrams in carriages
On Thu, 21 Feb 2008 21:00:02 +0000, Charles Ellson wrote:
Reversal can also happen with C stock that doesn't stay on the same line service all day (i.e. Circle Wimbleware or Circle Hammersmith and City). That couldn't result in it becoming reversed. |
#5
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LT strip diagrams in carriages
On Thu, 21 Feb 2008 22:22:45 +0000, asdf
wrote: On Thu, 21 Feb 2008 21:00:02 +0000, Charles Ellson wrote: Reversal can also happen with C stock that doesn't stay on the same line service all day (i.e. Circle Wimbleware or Circle Hammersmith and City). That couldn't result in it becoming reversed. I refer the honourable gentleman to the triangular junctions at Earls Court and Aldgate and the uncertainty of a train retracing its previous route if e.g. a points failure causes it to go the "other way" at some time during the day. |
#6
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LT strip diagrams in carriages
"Charles Ellson" wrote
Reversal can also happen with C stock that doesn't stay on the same line service all day (i.e. Circle Wimbleware or Circle Hammersmith and City). That would not reverse them, unless they go 'off route' to run direct from Aldgate East to Tower Hill, or Gloucester Road to Earls Court. |
#7
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LT strip diagrams in carriages
On Feb 22, 12:00*am, "John Salmon" wrote:
"Charles Ellson" wrote Reversal can also happen with C stock that doesn't stay on the same line service all day (i.e. Circle Wimbleware or Circle Hammersmith and City). That would not reverse them, unless they go 'off route' to run direct from Aldgate East to Tower Hill, or Gloucester Road to Earls Court. C stock always had universal couplers though, so that must have been the assumption. |
#8
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LT strip diagrams in carriages
On Thu, 21 Feb 2008 11:37:39 +0000, R.C. Payne wrote:
When I lived in London the Victoria Line trains clevely had the diagrams always pointing in the correct direction of travel so the ones on either side of the carriage were mirror images with Brixton and Walthamstow always at the correct end. This seems to have been abandoned. When, and why? Some lines have features that cause trains to become reveresed, for example Heathrow on the Picc, Kennington (Charring Cross branch) on the Northern. In these cases, handed maps aren't going to work. Not sure about other lines, though, or whether/why they have been abandonned. It was abandoned (at a guess) around a year ago, when the Jubilee line diagrams were replaced with non-handed ones. Since then the Victoria and Bakerloo have had the same treatment. None of the other lines had handed diagrams (though not sure about the W&C). |
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