Excellent map animation from Oliver O’Brien that visualises the touch ins and outs of Oyster cards, London's travel cards. Originally created for the “Sense and the City” exhibition at the London Transport Museum, which ran from Summer 2011 to Spring 2012, this animation powerfully illustrates the flow of London's population towards its centre as people commute in to work.
The in/out numbers are for each 10-minute interval. For stations where the in/out numbers are roughly equal at that time, the colour is white. Red stations indicate a strong flow into the network and green stations show a predominately outward flow. The Oyster card data was supplied by Transport for London and a version of this animation was created and shown at the London Transport Museum during its "Sense and the City" exhibition in 2011/2. The video here is a screen capture of a OpenLayers map which was produced by me at UCL CASA for the exhibition. The background map is based on data from Ordnance Survey Open Data (Crown Copyright) and OpenStreetMap contributors (ODbL). Background imagery created using Mapnik.
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