The dangers posed by lorries to cyclists and pedestrians were highlighted last week.
Two lorries were parked in Trafalgar Square, central London, to allow other road users to see first hand how limited a lorry driver's vision is.
Metropolitan Police figures show that in 2006 nine cyclists were killed in London in accidents involving lorries. The two-day event followed a campaign launched in March urging lorry drivers to look out for cyclists.
Chief inspector Mark Bird said: "Lots of people cycle in London and we encouraged people to come along and see first hand just how easy the cause of these types of collisions can be, and how easily avoidable they are.”
