The British Chambers of Commerce (BCC) has said the third runway at Heathrow airport will provide a £21.7bn ($33bn) boost to the UK economy.
The third runway is one of 13 key transport projects expected to help boost the UK economy by £85bn ($131bn) during the life of the next parliament, according to the BCC.
On 15 January 2009, the UK Government approved the development of a third runway at Heathrow.
The construction of the third runway is expected to increase the capacity of the airport to handle 20 million passengers per year, while allowing for an extra 400 flights each day.
The total cost of constructing the 13 key UK transport projects will be £29.8bn ($46bn), with £14.3bn ($22bn) coming from the private sector costs and £3.1bn ($4bn) from the public sector per year over a five-year period.