Transport for London's latest figures state that for the first quarter of 2011/2012 the average traffic speed on major London roads for the 12 hours between 7am to 7pm was 19.33 mph and over the same period was 8.98 mph across Central London.
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The painting, entitled 'Beautiful Beautiful George Michael Love Painting', was auctioned to help raise funds for HIV and Aids prevention.
The 38-year-old victim was standing on a busy Victoria Line train when another passenger approached him.
The boy, called Roman, told police call handler his mum "is dead" and "she's closing her eyes and not breathing".