In message , michael adams
wrote:
The stations in question Belsize Park, Camden Town, Goodge Steet, Stockwell,
Clapham North, Clapham Common, Clapham South are all deep level tubes
running through 11 feet 8 inches (3.56 m) tunnels.

The plan envisaged subsequently using the 16.ft 6in diameter shelters as
platform spaces, not as "train size" tunnels, as you claim above.

No, they weren't. 16'6" is too small for a platform tunnel.

From the various sources I've studied (*not* just The Web of a Million
Lies), the tunnels were explicitly designed as shelters, but put in
locations where they could be used as the basis for an express tube
after the war.

Such express tubes were under consideration from 1937 onwards (see
http://www.davros.org/rail/culg/victoria.html for some details) and at
some times were planned to be capable of carrying mainline stock. So
it's not surprising that a 16'6" *non* station tunnel size was chosen.

--
Clive D.W. Feather | Home:
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