As the event grew, concerns about the size of the event prompted Ken Livingstone to set up a Carnival Review Group to look into "formulating guidelines to safeguard the future of the Carnival". An interim report by the review resulted in a change to the route in 2002. When the full report was published in 2004, it was recommended that Hyde Park be used as a "savannah"; though this move has attracted some concern that the Hyde Park event may overshadow the original street carnival.