Last updated on
24th March 2020
A selection of diagrams showing the signalling arrangements
for sections of the Piccadilly Line at different times throughout its history.
Piccadilly Line 1931
These diagrams show the signalling arrangements on the original
section of the Piccadilly Line between Finsbury Park and
Hammersmith as it was in mid May 1931. By this stage some track
and signalling alterations had already been carried out in connection
with the forthcoming Piccadilly Line extensions, particularly at the
western end of the line. To highlight some of these changes some
sections of the line are also shown as they were in 1907.
West Kensington to Hounslow West and South Harrow 1933
A large diagram showing the
signalling on the west end of the District and Piccadilly Lines
between West Kensington and Hounslow West/South Harrow, excluding the Richmond Branch, in 1933.
Make sure you zoom in to see all the detail.
Uxbridge Branch 1949, 1975, 1994, 2018
A series of diagrams showing details of
the signalling along the Uxbridge Branch of the
Metropolitan Line & Piccadilly Lines in 1949,
1975, 1994 & 2018. You will need to zoom in to
see all the detail.
Most of the diagrams are in PDF format and to open them you
will need Adobe Acrobat Reader. If you do not already have this it can be
downloaded from the