Washington Dulles International Airport 1980s the original design, featuring mobile lounges to meet each plane, was no longer well-suited to Dulles' role as a hub airport. Instead, midfield concourses were added to allow passengers to walk between connecting flights without visiting the main terminal. Mobile lounges were still used for international flights and to transport passengers between the midfield concourses and the main terminal. An underground tunnel (consisting of a passenger walkway and moving sidewalks) which links the main terminal and Concourse B was opened in 2004. The Metropolitan Washington Airports Authority (MWAA) began a renovation program for the airport including a new security
London City Airport year could be absorbed by other airports which are currently under capacity. However, this plan was proposed when London City Airport was for sale. In February 2016 the airport was bought by a Canadian-led consortium, making redevelopment less likely. Additionally, the political weight behind air space in the south east would make it less likely still, with the government having approved the controversial expansion of Heathrow Airport, including the third runway. Owing to its proximity to London's Docklands and financial district its main users are business travellers, but the number of leisure destinations served (like Palma de Mallorca, Malaga or