Sources : http://volets10.fr/WP/archives/18242 et http://www.aerovfr.com/2015/08/le-trafic-aerien-en-europe/

NATS handles over 2 million flights in UK airspace every year. Of those, over 1.2 million arrive at or depart from one of the five main London airports. That’s over 3,500 flights every day using just six runways.And 99.8% of flights experience no ATC related delay. Find out why we can’t afford to wait for a new runway to act on capacity: http://nats.aero/blog/2015/07/we-cant-wait-for-another-runway-before-acting-on-capacity/

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