From speeding and light jumping to parking in bike lanes and passing too close, driver behaviour is one of the main deterrents to widespread cycling
What prevents significantly more people in the UK from riding bikes for everyday transport? The primary answer is simple: a lack of safe infrastructure.
If cyclists are expected to share the roads with a tonne or so of speeding metal then, global experience shows, you won’t get more than a certain, small percentage of the population doing it, predominantly the young and gung ho.
Source: The Guardian Bike Blog