"Can there be too many bikes in a city for safety? It's not a question usually asked: the received wisdom, supported by research and backed by campaigning groups, is that the more cyclists there are, the safer the roads become for everyone. But in Copenhagen – one of the most bike-friendly cities in the world in which 36% of its inhabitants cycle to work or school, and which has committed to increasing that figure to 50% by 2015 – there are controversial voices coming from unexpected places." (Quoted from article)