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London Tubes: Unexpected locations of underground trains
wrote:
On Mon, 22 Jun 2015 10:54:24 +0100 Recliner wrote: The Northern needs five more for the Battersea extension plus up to 45 more to increase frequencies to up to 30 tph on the rest of the line. Incidentally, Battersea will run as an extension of the Charing Cross route, not as a separate branch. https://www.tfl.gov.uk/info-for/medi...lu-to-source-a ditional-tube-trains Thats a lot of trains. I wonder if they'll keep essentially the same train or will go for something all new under the skin? Also couldn't do any harm to make the windows larger. Yes, it is a surprisingly large order. In fact, if they go for the full number, it's more than the total 2009 TS Victoria line stock. There's obviously some constraints on the design: the doors must be in the same position as on the current Victoria line stock, and they must be available in six and seven car lengths for the two lines. One possibility might be to cascade existing Northern line 95 TS to the Jubilee, re-marshalled as seven-car units, with all the new trains going to the Northern Line, so they're kept together (or vice versa). The 95TS isn't compatible with the older technology 96TS Jubilee line stock, but they look almost the same and the cars are the same size. So one train must be made up of one type or the other card, but trains of both type should be able to mix on a line. I would think that with such a large order, the new trains will have newer technology than the existing stock, which will be about 25 years older. But TfL may want them to look the same for passengers, so the windows may be the same. The performance will probably also be the same as they will have to run together on the same line, unless they're all put on one branch of the Northern line (see below). Alstom must be the favourite to win the order, but I assume there will have to be a competitive tender, so Bombardier, say, could win. Maybe it'll be a variant of your favourite thick-walled 2009 stock? And if they go ahead with the proposal to split the Northern into two separate lines, we could imagine all of this new fleet being on one of those branches, the 95TS on the other branch, and the Jubilee having a mix of its older 96TS and cascaded 95TS from the Northern. |
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