X marks the spot! Dazzling plans by British architect Lord Norman Foster for Mexico City's new £5.5BILLION airport unveiled

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Mexico City will quadruple the number of passengers flying in each year to 120 million by 2050 with a new £5.5bn airport.

The chosen design, by British architect Lord Norman Foster and Mexico's Fernando Romero, was unveiled on Wednesday.

The lightweight membrane roof of the terminal forms a giant 'X', and the entrance to the terminal will feature a garden of cacti and symbols of the eagle and snake, in reference to the Mexican flag.

X marks the spot: The design for a new £5.5bn airport in Mexico City has been unveiled

Communications and transportation department secretary Gerardo Ruiz said both architects were picked by a committee, and that contrary to past controversial airport proposals, the authorities would not expropriate any land.

Lord Foster is one of the world's leading architects and designed the Beijing Terminal 3 airport. Mr Romero is the son-in-law of billionaire Mexican telecom magnate Carlos Slim.

The new Mexico City airport will cover nearly 11,400 acres of former lakebed about six miles from the present, over-crowded facility. It will have six runways and it's expected to be completed in 50 years.

Ambitious: The new six runway design will increase Mexico City's passenger capacity to 120 million per year

Symbolic: The design features a lightweight membrane, X-shaped roof and a garden of cacti with snake and eagle elements to represent the Mexican flag

The old airport can handle only 32 million passengers per year. It will eventually be turned over to the city for recreational and educational use.

Mr Ruiz said that construction of the new airport would begin in 2015.

President Enrique Pena Nieto said three runaways are expected to be up and running by 2020 and handle 52 million passengers per year. 'The new airport will be a grand work, a symbol of modern Mexico,' he said.

Design team: British architect Lord Norman Foster (2nd left) and Mexico's Fernando Romero (left) are pictured showing Mexican President Enrique Pena Nieto their design

Staggered opening: The first three runways will be open by 2020, with the remaining three by 2050

Critics of the massive project say the land where it would be built is not suitable for a new airport. Former environment secretary Jose Luege said that part of Mexico City is prone to flooding.

Mr Ruiz denied that and said impact studies have already been conducted and that there are plans to set up areas where rain water can be harvested to avoid floods.

It will be 'a modern, on the vanguard (project) that will have a great dose of Mexican symbolism and that without a doubt will be a reference around the world and a great door' into Mexico, Mr Ruiz stated.

Mexican officials said they hope the new airport becomes the main air hub in Latin America.

Looking forward: President Enrique Pena Nieto said the new airport will be 'a symbol of modern Mexico'

New function: The current airport, six miles away, will be turned over to the city for recreational and educational use

Lord Foster, who has received some of the world's top architecture awards, including the Pritzker, said the airport will have spacious halls that can be used for art exhibitions.

Mr Romero, who designed Mr Slim's Soumaya museum, said the airport will honour the Mexican flag's coat of arms, which has an eagle on top of a cactus that is devouring a snake and is a reference to Tenochtitlan, the pre-Columbian city where the capital is built on. 

In 2002, the government tried to expropriate the land from a group of farmers on the outskirts of Mexico City to build a new airport.

But after violent clashes with the farmers from the town of San Salvador Atenco the government dropped the airport plan.

The airport proposed by Mr Pena Nieto's administration will be built on government land.