"Gunslinger" wrote in message ...
The restriction presumably arises from the introduction of 'A' stock on the
East London line.

This has a somewhat wider loading gauge than normal sub-surface stock, and
is not normally operated east of Aldgate.

People keep mentioning how wide A stock is , but according to my LU
rolling
stock book , A stock is 9 foot 8 inches wide whereas C stock is 9 foot
7 inches
wide (and that apperently can go anywhere on the sub surface lines) so
we're only talking half and inch either side. I can't believe the
clearances are so tight
in some of these tunnels than 0.5 inch makes a difference! There must
be some
other reason.

B2003