Experts say the effect is independent of improvements in cycling-friendly laws such as lower speed limits and better infrastructure, such as bike paths. Research has revealed the safety-in-numbers impact for cyclists in Australia, Denmark, the Netherlands, 14 European countries and 68 Californian cities.Lloyd at Treehugger goes into more detail on the safety aspect, pointing to Bike Commute Tips where Paul writes, "Amen to this. Stop perpetuating the myth of bicycling as a dangerous activity. Leave your helmet at home."
"It's a positive effect but some people are surprised that injury rates don't go up at the same rate of increases in cycling," says Sydney University's Dr Chris Rissel, co-author of a 2008 research report on cycling.
"It appears that motorists adjust their behaviour in the presence of increasing numbers of people bicycling because they expect or experience more people cycling. Also, rising cycling rates mean motorists are more likely to be cyclists, and therefore be more conscious of, and sympathetic towards, cyclists."
Dr Rissel says transport authorities should highlight the fun, convenience and health and environmental benefits of cycling, rather than what he views as an undue emphasis on danger and safety messages, which can deter cyclists: "We should create a cycling friendly environment and accentuate cycling's positives rather than stress negatives with 'safety campaigns' that focus on cyclists without addressing drivers and road conditions. Reminding people of injury rates and risks, to wear helmets and reflective visible clothes has the unintended effect of reinforcing fears of cycling which discourages people from cycling."Other responses: