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Investigation under way after Tube train collision
On Wed, 14 May 2014 03:59:03 -0500,
wrote: In article , (Aurora) wrote: On Tue, 13 May 2014 13:48:15 -0500, wrote: In article , (Aurora) wrote: On Tue, 13 May 2014 02:28:12 -0500, Christopher A. Lee wrote: On Mon, 12 May 2014 21:38:23 -0700, Aurora wrote: The S7 stock is some of the widest to ever operate in the UK. When Network Rail, or their predecessors, has operated stock with new kinetic envelope characteristics they have been known to cobble together a gauging vehicle and move it over the intended routes taking measurements. Is it within TfL's wit to carry out such an exercise? It's no wider than other LU surface stock apart from the C-stock. "D Stock is 9' 4" wide. "S Stock" is 9' 7" wide. While the "S Stock" is shorter, its kinetic envelope will be different. TfL have also had problems with the "gap" at some circle line platforms. That's because of the lower S stock floor height surely? The width issue for D stock will be the car length and not just the width too. What is the C stock width? Much to my surprise C Stock is 9 ft 7 in wide. One lives and learns. and is widest from solebar level to waist height, surely? That appears to be the case. -- http://www.dennismillerradio.com/ The DMZ. |
Investigation under way after Tube train collision
On Wed, 14 May 2014 03:59:03 -0500,
wrote: In article , (Aurora) wrote: On Tue, 13 May 2014 13:48:15 -0500, wrote: In article , (Aurora) wrote: On Tue, 13 May 2014 02:28:12 -0500, Christopher A. Lee wrote: On Mon, 12 May 2014 21:38:23 -0700, Aurora wrote: The S7 stock is some of the widest to ever operate in the UK. When Network Rail, or their predecessors, has operated stock with new kinetic envelope characteristics they have been known to cobble together a gauging vehicle and move it over the intended routes taking measurements. Is it within TfL's wit to carry out such an exercise? It's no wider than other LU surface stock apart from the C-stock. "D Stock is 9' 4" wide. "S Stock" is 9' 7" wide. While the "S Stock" is shorter, its kinetic envelope will be different. TfL have also had problems with the "gap" at some circle line platforms. That's because of the lower S stock floor height surely? The width issue for D stock will be the car length and not just the width too. What is the C stock width? Much to my surprise C Stock is 9 ft 7 in wide. One lives and learns. and is widest from solebar level to waist height, surely? If your implication is that, the envelope for the S7 stock was therefore known beforehand? I beg to differ. Other factors come into play, the car length, how far inboard are the trucks (that would be bogies in your parish's English) and the profile of the car ends. Certainly it never hurts to carefully consider the characteristics of the route in relation to the rolling stock. -- http://www.dennismillerradio.com/ The DMZ. |
Investigation under way after Tube train collision
In article ,
(Aurora) wrote: On Wed, 14 May 2014 03:59:03 -0500, wrote: In article , (Aurora) wrote: On Tue, 13 May 2014 13:48:15 -0500, wrote: In article , (Aurora) wrote: On Tue, 13 May 2014 02:28:12 -0500, Christopher A. Lee wrote: On Mon, 12 May 2014 21:38:23 -0700, Aurora wrote: The S7 stock is some of the widest to ever operate in the UK. When Network Rail, or their predecessors, has operated stock with new kinetic envelope characteristics they have been known to cobble together a gauging vehicle and move it over the intended routes taking measurements. Is it within TfL's wit to carry out such an exercise? It's no wider than other LU surface stock apart from the C-stock. "D Stock is 9' 4" wide. "S Stock" is 9' 7" wide. While the "S Stock" is shorter, its kinetic envelope will be different. TfL have also had problems with the "gap" at some circle line platforms. That's because of the lower S stock floor height surely? The width issue for D stock will be the car length and not just the width too. What is the C stock width? Much to my surprise C Stock is 9 ft 7 in wide. One lives and learns. and is widest from solebar level to waist height, surely? If your implication is that, the envelope for the S7 stock was therefore known beforehand? I beg to differ. Other factors come into play, the car length, how far inboard are the trucks (that would be bogies in your parish's English) and the profile of the car ends. Not really, just that it wasn't as different from its predecessor as implied earlier. We have been told the main problem was that the track was out of position anyway. Certainly it never hurts to carefully consider the characteristics of the route in relation to the rolling stock. That wouldn't have helped if the testing hadn't covered the particular track while it was out of position. -- Colin Rosenstiel |
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