In 1981, the Greater London Council (GLC) introduced the 'Fares Fair' scheme, a system of fare zones for bus and underground trains, cutting the average fare by 32 per cent. This was challenged in court, the GLC lost and fares doubled in 1982. The fare zones were retained and fares dropped slightly the following year. In 1983 the Travelcard allowed travel within the specified zones on buses and underground trains, and was followed in Capitalcard in 1985 that included British Rail services. In 1984 control of London Buses and the London Underground passed to London Regional Transport (LRT), which reported directly to Secretary of State for Transport. By the early 1980s, the pre-war trains had been replaced by new unpainted aluminium trains. One person operation had been planned in 1968, but conflict with the trade unions delayed introduction. The Metropolitan, East London, District and Circle lines were converted in 1985–86, the Piccadilly, Jubilee and Bakerloo lines following in 1987–88. One Person Operation was introduced on the Central and Northern lines after they received new trains in the early 1990s. King's Cross fire The King's Cross fire killed 31 people in November 1987 when a lit match set fire to a wooden escalator. In the subsequent report London Underground was strongly criticised for its attitude to fires and its publication led to resignations of senior management in both London Underground and London Regional Transport and to the introduction of new fire safety regulations. A Fire Safety Code of Practice was drawn up for rolling stock and this led to internal refurbishment of the trains that included replacing the interior panelling and fitting or improving the public address systems. 1990s At the same time, the exterior of the trains were painted as it had proved difficult to remove graffiti from unpainted aluminium. The first refurbished trains were presented to the media in September 1989, and the project launched in July 1991. In 1994 LRT took over control of the Waterloo and City line. The Epping–Ongar branch of the Central line and the Aldwych branch of the Piccadilly line closed in the same year. To link the growing Docklands area with central London, several options were considered, and an extension of the Jubilee line was chosen. Approved in 1993, the stations were built to be fully accessible and with platform edge doors. There was pressure on London Transport to get the line open