Harsig's Signalling Page 
Harsig's Signalling Page 

Last updated on
23rd March 2020

Harsig's Signalling Page

 Circle Line 

A selection of diagrams showing the signalling arrangements for sections of the Circle Line at different times throughout its history.

Circle Widened Lines   Widened Lines 1926 & 1956
A set of diagrams showing the signalling arrangements between Kings Cross and Moorgate in 1926 and between Farringdon and Aldgate in 1956. 
Farringdon 1958   Farringdon 1958
In 1958 the Banking Engine Spur at Farringdon was relocated. This diagram shows the new and old arrangements at Farringdon. It should be read inconjunction with the 1956 Widened Line diagram above. 
Metropolitan Railway 1933   Metropolitan Railway 1933
A very large diagram showing virtually all of the Metropolitan Railway as it was in 1933. It includes the northern section of the Circle Line from South Kensington to Aldgate. Make sure you zoom in to see all the detail. 
Cromwell Road   Cromwell Road Area
A large diagram showing the area between Earls Court and High Street Kensington and between Earls Court and South Kensington. Make sure you zoom in to see all the detail.
Baker Street   Baker Street 1987 & 2010
Two diagrams showing the arrangements before and after the recent alterations to lengthen some of the platforms at Baker Street (Met). 

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 Adobe Website.

Harsig's Signalling Page