"Chris Brady" wrote in message
m...

Under T5 - the service tunnels of which were built many years
ago during the building of the T4 loop of the Picadilly Line
- even before any planning application for T5 had even started
but no-one noticed - ...

If the service tunnels for T5 were built during the building of the T4
Piccadilly loop, they must now be in the wrong place for T5. The Piccadilly
loop including a straight stretch for a T5 station, but it can't be used for
this because AIUI the location of T5 has been moved westwards.
--
Richard J.
(to e-mail me, swap uk and yon in address)