Terminal 5 is situated between the northern and southern runways at the western end of the Heathrow site, and was opened by Queen Elizabeth II on 14 March 2008 some nineteen years after its inception. It opened for passenger use on 27 March 2008. The first two weeks of the terminal's operation were disrupted by a number of problems with the terminal's IT systems, coupled with insufficient testing and staff training, which caused over 500 flights to be cancelled.Terminal 5 is exclusively used by British Airways as their global hub.
Built at a cost of £4.3 billion, the new terminal consists of a four storey main terminal building (Concourse A) and two satellite buildings linked to the main terminal by an underground people mover transit system. The first satellite (Concourse B) includes dedicated aircraft stands for the Airbus A380; Concourse C is currently under construction and scheduled to open in 2010.In total, Terminal 5 has an area of 353,020m2, 60 aircraft stands and capacity for 30 million passengers annually. There are more than 100 shops and restaurants.A further building, similar in size to Concourse C, may yet be constructed to the East of the existing site, providing another 16 stands.
The transport network around the airport has been extended to cope with the increase in passenger numbers. A dedicated motorway spur has been built from the M25 between junctions 14 and 15 to the terminal, which includes a 3,800 space multi-storey car park. A more distant long-stay car park for business passengers will be linked to the terminal by a personal rapid transit system, which will become operational in late Spring 2010.New branches of both the Heathrow Express and the Underground's Piccadilly Line serve a new shared Heathrow Terminal 5 station.