A sequence produced by data visualization experts 422 South. Sequence was produced for NATS – the UK based global air traffic management company. NATS says: ‘This data visualization was created from real flight data taken from a day in July 2013. It highlights the intensity of the operation in Europe – an operation which runs 24 x 7 x 365. NATS and the UK are at the heart of the operation. With Heathrow as the busiest international airport in Europe, and Gatwick as the busiest single runway airport in the world, NATS plays a key role in ensuring air traffic is under control