London Underground 1992 Stock & City line, which until 1994 was part of the national railway network, and became their Class 482. When this line passed to London Underground at the start of the process to privatise British Rail on 1 April 1994, these units also passed to London Underground. The vehicles are essentially identical to those used on the Central line; the main difference being that trip-cocks are used for protection instead of ATO/ATP. Transport for London and Metronet closed the Waterloo & City line for five months from April to September 2006 to allow major upgrade work on the tunnels and rolling
Safety on the London Underground a six-month trial period in all parts of the Underground, and the ban was made permanent after the major King's Cross fire in November 1987. From 1 June 2008 an alcohol ban was introduced on all TfL services. This change in policy was made by Boris Johnson soon after he was elected Mayor of London in May 2008. He claimed that a public transport drinking ban would reduce crime. Following the 1987 King's Cross fire as well as the permanent smoking ban on all London Underground premises, the programme of wooden escalator replacement was sped up, and stricter controls on