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Worcester_Passenger
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« Reply #15 on: July 15, 2014, 18:16:47 » |
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Given the ways in which double Voyagers turn up with the coach letter order all over the place, this is a recipe for chaos.
"To alight at Honeybourne you will need to be in the middle four coaches, that's coaches B, A, K and J."
And dare I ask what happens with bikes? Spaces at both ends of the units (wasteful)?
I occasionally travel on one of East Midlands' double Meridians. Both units are on the long platform at Leicester, but it's only the front unit that stops at Loughborough. Usually well-announced, but there's quite a bit of scampering at Leicester.
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IndustryInsider
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« Reply #16 on: July 15, 2014, 18:27:34 » |
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How would SDO▸ work? With a double stop at each station concerned? Or with the rear half of the front train on the platform and the front end of the rear train on? Either option = delays and confusion galore! The option I have highlighted in green is what I would expect. Would you agree that a single 9-car unit (using SDO) would be better for short platforms than a pair of fives using SDO? Operationally, without a doubt, yes. |
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To view my GWML▸ Electrification cab video 'before and after' video comparison, as well as other videos of the new layout at Reading and 'before and after' comparisons of the Cotswold Line Redoubling scheme, see: http://www.dailymotion.com/user/IndustryInsider/ |
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ChrisB
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« Reply #17 on: July 15, 2014, 19:02:13 » |
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Except that electric 9cars won't be running on this part of the network
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Rhydgaled
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« Reply #18 on: July 15, 2014, 20:16:17 » |
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Except that electric 9cars won't be running on this part of the network Indeed. I was making the point that it may well be more sensible to have some 9-car bi-modes in the GWML▸ fleet, not currently planned to be so unfortunately. |
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Don't DOO▸ it, keep the guard (but it probably wouldn't be a bad idea if the driver unlocked the doors on arrival at calling points).
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Surrey 455
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« Reply #19 on: July 15, 2014, 23:42:20 » |
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Automated platform announcements at SWT▸ stations do include the message "Due to short platforms, passengers for x,y and z should board the front four coaches and passengers for a,b and c should board the front three coaches" etc.
Even a major station such as Clapham Junction is not immune to short platforms with trains from Bournemouth to Waterloo only having 5 coaches out of 10 that are able to open the doors there. This is 2x5 car trains so I suspect that it is not possible for selective door opening on some of the coaches as you could certainly fit more than 5 carriages on that platform.
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paul7575
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« Reply #20 on: July 16, 2014, 00:13:32 » |
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Automated platform announcements at SWT▸ stations do include the message "Due to short platforms, passengers for x,y and z should board the front four coaches and passengers for a,b and c should board the front three coaches" etc.
Even a major station such as Clapham Junction is not immune to short platforms with trains from Bournemouth to Waterloo only having 5 coaches out of 10 that are able to open the doors there. This is 2x5 car trains so I suspect that it is not possible for selective door opening on some of the coaches as you could certainly fit more than 5 carriages on that platform.
SWT's Desiro fleet doesn't have coach level SDO▸ operational yet, they use a system called 'unit deselect' (UDS) enabled from the leading cab behind the part of the train that can open, so either front 5 of 10 or front 4 or 8 of 12 as appropriate. The fleet is being modified though, with a carriage level automatic SDO like Southern's, using data balises fitted on the track at short platforms rather than primarily GPS. The new ASDO▸ system on the Desiros should be operational in September this year, starting with the 444s. Paul |
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Richard Fairhurst
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« Reply #21 on: July 16, 2014, 08:28:33 » |
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"To alight at Honeybourne you will need to be in the middle four coaches, that's coaches B, A, K and J." Will the coach letters not be set "dynamically" - in other words, electronic displays which are configured at the start of each journey to the train formation? And dare I ask what happens with bikes? Spaces at both ends of the units (wasteful)? From memory, I think the bike spaces are somewhere near the middle of each 5-car unit. So they might both fit on at Charlbury platform 1, but Hanborough could be more difficult... |
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Worcester_Passenger
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« Reply #22 on: July 16, 2014, 09:32:59 » |
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"To alight at Honeybourne you will need to be in the middle four coaches, that's coaches B, A, K and J." Will the coach letters not be set "dynamically" - in other words, electronic displays which are configured at the start of each journey to the train formation? The coach letters on the Voyagers are set that way - but they've got to allow for First Class. Hence you can get letter sequences like E-D-C-B-A-K-J-H-G-F. |
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IndustryInsider
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« Reply #23 on: July 16, 2014, 10:14:03 » |
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And dare I ask what happens with bikes? Spaces at both ends of the units (wasteful)? From memory, I think the bike spaces are somewhere near the middle of each 5-car unit. So they might both fit on at Charlbury platform 1, but Hanborough could be more difficult... Yes, they're at the end of the fourth coach in the proposed layouts (which are of course subject to change), so not far off the middle. Space for those confined to a wheelchair is located at either end of the 5-Car units on the proposed design though - so that may well cause problems depending on the method of operation at shorter station platforms. |
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« Last Edit: July 16, 2014, 10:22:17 by IndustryInsider »
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To view my GWML▸ Electrification cab video 'before and after' video comparison, as well as other videos of the new layout at Reading and 'before and after' comparisons of the Cotswold Line Redoubling scheme, see: http://www.dailymotion.com/user/IndustryInsider/ |
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Louis94
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« Reply #24 on: July 18, 2014, 21:42:05 » |
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I occasionally travel on one of East Midlands' double Meridians. Both units are on the long platform at Leicester, but it's only the front unit that stops at Loughborough. Usually well-announced, but there's quite a bit of scampering at Leicester.
Not sure when you last traveled then - Loughborough can take a full 10 car Meridian now since about 2 years ago! Back on to the point of short platforms though and what East Midlands Trains do is advertise the full coach letters order of each service formed of a double Meridian (South West Trains also do this for all CrossCountry services) and then have a separate message if one unit not going to have any access to a certain station, such as Long Eaton or Beeston. Works quite well, although it is a bit different on FGW▸ with a significantly higher number of short platforms. Short platforms is definitely something that will need to be put onto the screens at the stations once we have parts of trains that you physically can't walk through the train to alight at a certain station. |
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Worcester_Passenger
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« Reply #25 on: July 18, 2014, 23:44:12 » |
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I occasionally travel on one of East Midlands' double Meridians. Both units are on the long platform at Leicester, but it's only the front unit that stops at Loughborough. Usually well-announced, but there's quite a bit of scampering at Leicester.
Not sure when you last traveled then - Loughborough can take a full 10 car Meridian now since about 2 years ago! Glad to hear this. |
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