History of the London Underground to determine the cause. Following the incident, a system that stops a train automatically if the driver fails to brake was introduced at dead-ends on the London Underground. The Northern City Line was connected to British Rail tracks at Finsbury Park in the 1970s. The last tube train ran in October 1975, and British Rail services began in 1976. In 1977, the Piccadilly line was extended from Hounslow to Heathrow Airport, and in 1986 a platform serving Terminal 4 opened on a loop line. The Fleet line through central London was first proposed in 1965, taking over the Bakerloo line's
History of the London Underground of London, Ken Livingstone, was sceptical about the practicality of the PPP plan, and brought in the American Bob Kiley as London's Transport Commissioner to repeat his success with the New York City Subway using public bond finance. Taking office in 2000 as London's first directly elected mayor, it was difficult for Livingstone to block the PPP process, which was entirely in the national Government's hands as it still owned London Underground, which was not transferred to local control until July 2003. Kiley was fired from the board of London Regional Transport (of which he had been chairman) in 2001