London and into the Home Counties with a branch to Heathrow Airport. It is Europe's biggest construction project, with a £15 billion projected cost. London is the centre of the National Rail network, with 70 per cent of rail journeys starting or ending in London. Like suburban rail services, regional and inter-city trains depart from several termini around the city centre, linking London with the rest of Britain including Birmingham, Brighton, Reading, Bristol, Cardiff, Derby, Exeter, Sheffield, Southampton, Leeds, Liverpool, Manchester, Cambridge, Newcastle upon Tyne, Edinburgh and Glasgow. Some international railway services to Continental Europe were operated during the 20th century
London Britannia Airport many years. The idea was revived in 2008 by the Mayor of London, Boris Johnson, to be located towards the Shivering Sands area, north-east of Whitstable. The deputy mayor, Kit Malthouse, had supported a Thames estuary airport since before taking office. In November 2008, the mayor appointed Doug Oakervee (executive chair of Crossrail) to lead the Greater London Authority's preliminary feasibility study, which determined in October 2009 that there is "no logical constraint" to the plan. The London Britannia Airport name was adopted for the latest iteration of the idea presented in November 2013. This proposal would cost £47.3 billion