Airports of London cannot be expanded due to the docks on either side. It is also the only airport serving London which does not operate at night. A light rail service from London City Airport DLR station, which adjoins the terminal building of London City Airport, links it to the financial district of the City of London at Bank and Monument stations, which offer interchanges with London Underground. Located in the London Borough of Hillingdon, Heathrow is by far the largest of London's airports and considered the main gateway into the United Kingdom for non-European visitors. Heathrow has four terminals and two parallel
History of the London Underground 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