London Banter - View Single Post - Why the piccadilly to Heathrow , why not the District?

Boltar · October 22nd 03, 08:22 AM posted to uk.transport.london

(Johnny Mo) wrote in message . com...
No one has yet noted there are legal differences between sub-surface
stock ( district line) and tube stock (picc). To put a district train
thru a single bore tunnel would require a whole new fleet. Tube (and
WAGN class 313) need lengthwise evacuation, sub-surface stock does
not.

But what about places where surface stock runs through single bore tunnel
such as under the river on the east london line and at earls court?

B2003