Test passenger trains travel along new Northern line extension tunnels for the first time between Kennington and Battersea Power Station over Christmas Junction joy South". South London Press. Streatham. 24 April 2004. Archived from the original on 9 May 2004 . Retrieved 3 November 2007. The Railway Consultancy Ltd. "South London Line Research Study". London TravelWatch. Archived from the original on 28 July 2011 . Retrieved 31 October 2009.

The City and South London Railway (C&SLR) was the first deep-level underground "tube" railway in the world, [1] [2] and the first major railway to use electric traction. The railway was originally intended for cable-hauled trains, but owing to the bankruptcy of the cable contractor during construction, a system of electric traction – an experimental technology at the time – was chosen instead. This is King William Street station, and it’s currently serving a useful function as part of the Bank station upgrade project, which I wrote about last week. No Service on the Northern Line" (Press release). Transport for London. 13 October 2005 . Retrieved 30 June 2008. Major Northern line signalling upgrade is completed, increasing passenger capacity by 20% and reducing journey times by 18% Bond Street station upgrade is completed, expanding capacity 30% to prepare for the Elizabeth line. Both Bond Street and Tottenham Court Road stations, serving either end of Oxford Street, become step-freeNear Borough station the new tunnels would branch off via a new station to form an interchange with London Bridge main-line station. The tunnels would then pass to the east of London Bridge, north through the City of London to The Angel, Islington. Following a delay, during which a Joint Select Committee reviewed the proposals of several new underground railways, [30] the City and South London Railway Act, 1893 received Royal Assent on 24 August 1893. [31] The Act also incorporated another bill of 1893 [32] to grant an extension of time to build the southern extension to Clapham. [30] an extension of time for the 1893 Act and changes to the construction of Bank station. [34] Approved as the City and South London Railway Act 1896 on 14 August 1896. [35] The City and South London Railway ( C&SLR) was the first successful deep-level underground "tube" railway in the world, [1] [note 1] [note 2] and the first major railway to use electric traction. The railway was originally intended for cable-hauled trains, but owing to the bankruptcy of the cable contractor during construction, a system of electric traction using electric locomotives—an experimental technology at the time—was chosen instead. The peak-hour service pattern was to be 21 trains an hour each way on the High Barnet branch north of Camden Town, 14 of them via the Charing Cross branch and seven via the Bank branch. 14 would have continued on beyond Finchley Central, seven each on the High Barnet and Edgware branches. An additional seven trains an hour would have served the High Barnet branch, but continued via Highgate High-Level and Finsbury Park to Moorgate, a slightly shorter route to the City. It does not seem to have been intended to run through trains to the ex-Northern City branch from Edgware via Finchley Central. Seven trains an hour would have served the Alexandra Palace branch, to/from Moorgate via Highgate High-Level. In addition to the 14 through trains described, the ex-Northern City branch would have had 14 four-car shuttle trains an hour. A separate bill was published at the same time by the London Electric Railway Co (LER, a company formed by the UERL in 1910 through a merger of the BS&WR, GNP&BR and CCE&HR), which included plans to construct tunnels to connect the C&SLR at Euston to the CCE&HR's station at Camden Town. Together, the works proposed in these bills would enable the CCE&HR's trains to run over the C&SLR's route and vice versa, effectively combining the two separate railways.

between London Victoria and Dover Priory via Chatham (Stopping at Denmark Hill only – Southeastern) The London & South Eastern Railway Limited (known as the Southeastern Raiway) is a British company operating trains in the south-east of England, owned by Govia (Go-Ahead Group and Keolis). Southeastern Raiway is the main operator of commuter and regional trains in South East London and Kent. The traffic of the subway shall be worked by ... the system of the Patent Cable Tramway Corporation Limited or by such means other than steam locomotives as the Board of Trade may from time to time approve". File:Ltmd-c&slr-number13-01.jpg Gareth Corfield (9 August 2016). "London's 'automatic' Tube trains suffered 750 computer failures last year". The Register . Retrieved 9 August 2016.Despite the technical innovations of the railway and the large passenger demand, the C&SLR was not particularly profitable and the rapid series of extensions undertaken by the company aimed at improving profits had placed a strain on the finances. The dividends were low and declining (2⅛% in 1898, 1⅞% in 1899 and 1¼% in 1900) and the company had been accused of extravagance for the abandonment of King William Street station. In an attempt to work around this poor reputation and make it easier to raise funds, the next bill for an extension of the line was submitted in November 1900 by a notionally separate company, the Islington and Euston Railway (I&ER), albeit one that shared its chairman with the C&SLR. The proposed railway was to run from the, as yet unfinished, C&SLR station at Angel to the mainline stations at King's Cross, St. Pancras and Euston. The I&ER bill coincided with a rash of other railway bills encouraged by the successful opening of the Central London Railway (CLR) in 1900 and was considered alongside these by another Parliamentary Joint Committee in 1901. The bill was approved, but the time taken for the committee's review meant that it had to be resubmitted for the 1902 Parliamentary session. Exploring 20th Century London, Padded Cell carriage". Archived from the original on 30 September 2011 . Retrieved 20 September 2007.

Greathead, James Henry (1896). The City and South London Railway: With Some Remarks Upon Subaqueous Tunnelling by Shield and Compressed Air. Institution of Civil Engineers. Retrieved on 21 January 2010. Underground Journeys: Moving Underground". www.architecture.com. Royal Institute of British Architects. Archived from the original on 4 May 2011 . Retrieved 20 February 2011.The LBSCR scheme, authorised in 1903, pioneered main-line rail electrification in the UK, and the first electric train ran on 1 December 1909. For the following three years, steam trains alternated with electrics, the latter operating every 15 minutes from 7.30am to midnight. Passenger numbers had fallen on introducing electric tramways in South London by 1.25million in six months. In the first year of the rival line's electric operation passengers increased from 4million to 7.5million. The electrification used the overhead system at 6700 V AC, supplied by a power station at Deptford. [1] After creation of the Big Four railway companies, the Southern Railway installed standard third-rail 660 V DC supply on 17 June 1928. [1] Pre-extension route Because of the small diameter of the tunnels as well as the difficulty of providing sufficient ventilation, the use of steam power, as used on London's other underground railways, was not possible for a deep-level tube railway. Like Greathead's earlier Tower Subway, the CL&SS was intended to be operated by cable haulage with a static engine pulling the cable through the tunnels at a steady speed. [12] Section 5 of the 1884 Act specified that: The C2C which transports 916 million passengers per year, is the Essex Thameside franchise since 1996 and is operated by National Express. London Underground takes over the Waterloo & City line and responsibility for the stations on the Wimbledon branch of the District line from Putney Bridge to Wimbledon Park

London Tubes' New Names – Northern and Central Lines". The Times (47772): 12. 25 August 1937 . Retrieved 18 May 2009. (subscription required) The bill was enacted as the City and South London Railway Act, 1923 on 2 August 1923. [70] Parallel negotiations with the Southern Railway over the proposals curtailed the extension at Morden, where a large new depot was constructed. The Morden extension opened on 13 September 1926, [71] with stations designed by Charles Holden at: Mather and Platt had just received the contract to supply a complete electric railway system for the City of London and Southwark Subway (sic) [3]. The London Transport Executive takes over the Underground and the Greater London area bus network, reporting to the Greater London CouncilThe London Overground also runs on this line as part of the Clapham Junction – Dalston Junction / Highbury & Islington service. Trains also call at Wandsworth Road and Clapham High Street stations. Day, John R; Reed, John (2008) [1963]. The Story of London's Underground. Capital Transport. ISBN 978-1-85414-316-7.