true black tag:bbc.co.uk,2008:britain-from-above:playlist_48ecebd36ce5f Mapping Information A visualisation of Britain's information economy with communication at its heart tag:bbc.co.uk,2008:britain-from-above:item_48ecebd36cf29 tag:bbc.co.uk,2008:britain-from-above:related_48ecebd36cfbd Ships Crossing the Channel More than 400 ships traverse the English Channel each day tag:bbc.co.uk,2008:britain-from-above:related_48ecebd36d071 Taxis in London Tracking 380 taxis in London over 24 hours