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As a result, Sydney is working to provide 200km of cycle lanes by 2030, with 55km separated from traffic. Although Campbell admits that segregated cycle lanes are not ideal, with the risk of producing a "them and us" mentality, they have been successful in persuading previous non-cyclists to get out on their bikes. Research done by the council has shown that the likelihood of a resident commuting by bike increases exponentially with the proportion of their commuting trip made possible on a separated bike lane.
The new lanes have been combined with decreased speed limits and extensive junction redesigns which give cyclists priority and improve visibility. One advantage of the new junctions is that there has been a decreased number of accidents involving all modes of transport, not just bikes.
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http://www.guardian.co.uk/environment/bike-blog/2012/jun/28/sydney-noncyclists-bikes