District Line 

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

	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.
	Whitechapel to Upminster 1936 A large diagram showing the signalling on the east of the District Line between Whitechapel and Upminster in 1936. Make sure you zoom in to see all the detail.
	Whitechapel to Upminster 1960 A large diagram showing the signalling on the east of the District Line between Whitechapel and Upminster in 1960. Make sure you zoom in to see all the detail.
	Cromwell Road Area 1936 - 1969 A series of diagrams showing the area between Earls Court and High Street Kensington and between Earls Court and South Kensington at various dates between 1936 and 1969. Make sure you zoom in to see all the detail.
	Putney Bridge & Parsons Green A diagram showing the arrangements at Putney Bridge and Parsons Green shortly after control of these areas was transferred to Earls Court in October 1960.  Make sure you zoom in to see all the detail.
	Tower Hill to Stepney Green 1958 A large of diagram principally covering the northern portion of the Circle Line as it was in 1958, but also showing a small section of the District Line from Tower Hill to Stepney Green.
	Baker Street SCC 2005 A very short section of the District Line, from just east of Tower Hill to just west of St. Mary's Junction (between Aldgate East and Whitechapel) was signalled from the Metropolitan and Jubilee SCC at Baker Street. This diagram shows the whole SCC control area as it was circa 2005. It also shows the Jubilee Line Extension from Green Park to Stratford (controlled from Neasden SCC) and the Bakerloo Line (controlled from the Bakerloo SCC at Baker Street). Make sure you 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 Adobe Website.