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Originally Posted by boilersuit
What, no end doors? Doesn't look like a very flexible solution.
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The DfT specification for these trains was for fixed formation 8 and 12 car trains. They won't be working in multiple.
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And what about the regulation that trains have to end access if they run through single-bore tunnels?
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Throughout the intended route for this stock there are no single bore tunnels.
On the Thameslink side the only cause for this was Smithfield tunnel on the Moorgate Branch (ie, Farringdon to Moorgate). When the branch closed due to the rebuilding of Farringdon station the requirement for end doors on TL rolling stock disappeared.
Over on the GN side there is still one tunnel with significant lengths of single bores - entertainingly enough it's the '
other' Moorgate Line (aka the Northern City Line from Drayton Park to Moorgate) and that uses 313 stock exclusively - so class 700s will not need to be given route clearance down there. The platforms are only 6 cars long anyway.