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
Katowice International Airport Katowice International Airport Katowice International Airport () is an international airport, located in Pyrzowice, north of Katowice, Poland. The airport has the fourth-biggest (second-biggest in Summer Season) passenger flow in Poland. Katowice Airport has the biggest charter passenger flow of the airports in Poland. In August 2017 this airport was the second biggest airport in Poland in passenger flow. It is also second biggest airport in the Country in Cargo traffic. Katowice Airport operates a lot of charter, regular and cargo flights. The airport is an operating base for Enter Air, Ryanair Sun, Smartwings, Travel Service Polska and Wizz Air.