June 22nd 15, 02:55 PM
posted to uk.railway,uk.transport.london
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First recorded activity at LondonBanter: Oct 2014
Posts: 2,990
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London Tubes: Unexpected locations of underground trains
Recliner wrote:
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
[Oops!] *Jubilee*
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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