On average each year from 2009-13: - Cycles accounted for about 2% of all urban, non-motorway vehicular traffic and were involved in 0.82% of pedestrian fatalities and 1.6% of serious injuries to pedestrians. - Mile-for-mile in urban areas, motor vehicles were about 1.2 times more likely than a cycle to seriously injure a pedestrian, and almost 2.5 times as likely to kill them. Taken from CTC Jan 2015.