Deleted
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Post by Deleted on Apr 20, 2009 20:20:29 GMT
A symmetrical formation doesn't matter that much - see the Jubilee Line.
It did matter more where uncoupling was routinely done and where trains had a cab at both ends as running 6 car trains or 8 car trains (too long) wasn't desirable. Having handed units also made this even more difficult!
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Post by astock5000 on Apr 20, 2009 20:28:38 GMT
But the 95TS formation isn't perfect - you still have two types of unit in depots, as they only have a cab at one end. The best formation is probably two reversible, double ended units with the same number of cars (like A stock were when they were built), or having a formation you never uncouple (like S stock).
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metman
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5056 05/12/1961-23/04/2012 RIP
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Post by metman on Apr 20, 2009 21:05:32 GMT
But space contraints and the gap where two middle cabs meet is a far greater a problem.
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Post by astock5000 on Apr 20, 2009 21:20:25 GMT
That is more of a problem now than it used to be because cabs seem to be getting bigger.
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metman
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5056 05/12/1961-23/04/2012 RIP
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Post by metman on Apr 20, 2009 22:03:27 GMT
Definately!
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Phil
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RIP 23-Oct-2018
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Post by Phil on Apr 28, 2009 7:23:32 GMT
But space contraints and the gap where two middle cabs meet is a far greater a problem. And don't forget costs either. All those extra fully-equipped cabs cost a fortune these days with all the electronic control stuff rammed into them.......and all for the odd crisis now and then. Obviously some bean-counter has done a cost-benefit analysis and decided it's not worth it. |
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