Economy of London project is construction of 42 km (26 mi) of new tunnels connecting stations in central London including a branch to Canary Wharf in east London. It is Europe's biggest construction project with a £15 billion projected cost. An additional line, Crossrail 2, has been proposed. London is served by six international airports which are the world's busiest city airport system by passenger traffic. These are Heathrow, Gatwick, Stansted, Luton, London City, and Southend. There are a number of proposals for expanding airport capacity for London including expansion of London Heathrow Airport and expansion of Gatwick Airport. The principal argument in
London City Airport DLR station London City Airport DLR station London City Airport is a light metro station on the Docklands Light Railway (DLR) Stratford-Woolwich and Bank-Woolwich Lines; serving London City Airport in East London. It opened on 2 December 2005. It was first located on what was initially King George V branch, and was, until the extension to Woolwich Arsenal was completed, the reason for this branch. It continues to be an important station on the DLR. Trains run westbound to Bank in the City of London, northbound to Stratford International and eastbound to Woolwich Arsenal. The station is in the London Borough of