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 Southend Airport The airport can be reached within 30 minutes from Junction 29 at M25 via the A127. The airport is served by buses operated by Arriva Southend from the airport entrance to Southend (7, 8 and 9), Rochford (7 and 8), Ashingdon (7), Hawkwell (8), Hockley (7 and 8), Eastwood (9) and Rayleigh (7, 8 and 9). First Essex operates route X30 from the terminal to Chelmsford and Stansted Airport. London Southend Airport London Southend Airport is an international airport in the district of Rochford in Essex, England, approximately from the centre of London. Southend was London's third-busiest airport from the