Boris Johnson has admitted that his plans won't become a reality without the cooperation of local and central government.
"I do not control the vast majority of London’s roads, so many of the improvements I seek will take time. They will depend on the cooperation of others, such as the boroughs, Royal Parks, Network Rail and central government.
"I do not promise perfection; I do not promise that London, a very different city from Amsterdam or Copenhagen, will quickly come to resemble those places. But what I do say is that this document marks a profound shift in my ambitions and intentions for the bicycle in London."
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.