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Thameslink NGEMU procurement - now in motion
On Apr 10, 8:44*am, John B wrote:
if there are reasons 26 metre cars can't be used; I would suggest there would be door access issues with stock longer than 20 m. On 20 m cars like 317/319/321 and 450/377/375 and 376 et al door spacing is approx 1/3 and 2/3 car. A 26 m car would be more like 1/4 and 3/4 door spacing - which would lead to longer dwell times - any more to place doors further towards the middle of a 26 m car would have to larger a throwover at curved platforms - of which there are too many stations to resolve. If you take a look a 444s at Waterloo where the country end of a 10car is on the curve its easy to see how much a 23 m car throws over. 444s have end-ish doors so its no big deal - but imagine even 1/3 + 2/3 spacing on one of those cars leads to a big gap. I'd have thought going the other way - to *shorter* but articlulated cars might be better. -- Nick |
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