class411
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Post by class411 on Oct 31, 2012 9:34:46 GMT
When travelling from Hammersmith in the last carriage (C Stock), I notice that when stopping at certain stations there is a notice alongside stating that not all trains will use that part of the platform and to move further towards the front.
I don't understand which trains will not occupy that section of the platform as the S7 stock is longer and the C Stock is clearly servicing that section.
Have the notices been placed incorrectly or am I missing something obvious?
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Post by t697 on Oct 31, 2012 19:43:20 GMT
Any specific examples?
I think the signage might go sightly beyond the end car of C stock so as to avoid crowding at the last (or first) doorway. The signs should be removed when the majority of trains are S7s instead of C stock.
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Post by Dstock7080 on Oct 31, 2012 21:16:07 GMT
There are two versions of similar signage.
One version is for the unoccupied part of the platform when a C Stock is operating, the other is to indicate that certain doors will not open on that part of the platform, when operated by S Stock.
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rincew1nd
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Junior Under-wizzard of quiz
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Post by rincew1nd on Oct 31, 2012 23:04:35 GMT
Hold Tight Please!
So a passenger can stand on a (presumably full-width platform) and have an S Stock arrive and the doors won't open, but when a C Stock does the doors will open?
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Post by t697 on Nov 1, 2012 7:37:00 GMT
Hold Tight Please! So a passenger can stand on a (presumably full-width platform) and have an S Stock arrive and the doors won't open, but when a C Stock does the doors will open? The only place on the Hammersmith branch programmed for a Selective Door Open door to stay closed is the departure end of Hammersmith 3, where it is next to the C stock OPO monitor. Any specific examples of the phenomenon you describe? |
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class411
Operations: Normal
Posts: 2,743
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Post by class411 on Nov 1, 2012 7:41:59 GMT
Goldhawk Road. That seems to make sense. There are two versions of similar signage. One version is for the unoccupied part of the platform when a C Stock is operating, the other is to indicate that certain doors will not open on that part of the platform, when operated by S Stock. Why will the S Stock not open its doors when there is perfectly good platform available? Or does selective opening only operate on a per carriage basis leaving some part of the end of the platform unusable in cases where the complete train does not quite fit? |
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Post by Dstock7080 on Nov 1, 2012 8:30:07 GMT
Why will the S Stock not open its doors when there is perfectly good platform available? Or does selective opening only operate on a per carriage basis leaving some part of the end of the platform unusable in cases where the complete train does not quite fit? It 'should' work on individual doors but the system is very sensitive and is out of the drivers hands. |
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Post by t697 on Nov 1, 2012 18:40:46 GMT
Correct, the SDO is on a per doorway basis. One, two or three doors inwards from one or both ends in various combinations but always maximising the doors that open, within the safe publically accessible platform. Because so many different combinations are necessary to deal with a variety of short platforms, it is made automatic so the driver doesn't need a long list of platforms and a set of switches to set up each one!
Goldhawk Road both platforms are All Doors Enabled.
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Post by trt on Nov 2, 2012 11:21:32 GMT
It's one of the reasons that, in the unlikely event that I managed to get a seat, I don't get up if I can until I hear the door mechanism start to operate. On more than one occasion the driver has had to jerk the train around a bit in order to get the sensor lined up properly, and it flings unsuspecting passengers around like peas in a rattle!
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