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"A 'superhub' airport with four runways could be built in the home counties or west London under plans drawn up for Heathrow bosses.
"The blueprint includes options for a huge new airport close to Maidenhead or Oxford, or doubling the number of runways at Heathrow, to handle 140 million passengers a year.
"... A document called Heathrow 2025, Masterplan Options & Indicative Layouts, obtained by Aviation Week industry information service, outlines 10 options. They include plans for a four-runway airport at White Waltham in Berkshire, near Maidenhead and Bracknell, or at Haddenham in Aylesbury Vale, Buckinghamshire, about 15 miles from Oxford."