Page last updated at 15:20 GMT, Friday, 1 April 2011 16:20 UK

What will airports of the future look like?

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It is predicted that the number of air passengers will double by 2030 so more and more airports will have to cater for a huge increase in passengers.

One suggestion is that the aerotropolis - a city created with an airport at its heart, not at its edges - should be the model for the future.

But will biggest always mean best? Fiona Foster investigates.

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