Met Police Officer Steven Wickenden told the inquest: "In general cyclists refer to blue areas as cycle lanes, very few aware of the difference."
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His top speed is believed to be the highest ever recorded in the UK by a rider carrying a pillion passenger.
The mayor took time out from City Hall to join Conservative party workers handing out leaflets in Uxbridge and South Ruislip.
No matter where you look, London's population is getting older - with the exception of one of the capital's boroughs.