Circle Line 

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

	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.
	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 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 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.