Study says vast majority of Britons won’t cycle on urban roads as they are now. So what’s the answer?
Main conclusion: the UK will never get anything close to a European-style mass cycling culture without some major (and to me, seemingly unlikely) changes, notably the construction of proper-width, segregated lanes on all main urban roads.
http://www.guardian.co.uk/environment/bike-blog/2011/jun/03/cycling-study-bike-paths