GPS mappings of all the bike rentals in the Barclays Bikes system in London. 

It’s a snapshot of 5 million bicycle journeys - and a handy map of London’s commuter hotspots.

This image is a still from an animation created by visualisation specialist Jo Wood at City University in London. He based it on data from the first 5 million journeys pedalled in theBarclays Cycle Hire scheme since its launch in July 2010.