Buffalo wrote this article in the Guardian today, and he is spot on. Splitting up the road users into groups so that cyclist, cars, buses have their own bit of road is just wrong. You need to teach and train road users to understand that there is others sharing the roads with you.
If one of the main obstacles to getting more bums on bikes is lack of confidence, then surely it would be better to spend the money on training so that potential cyclists will know how to handle their bikes and to recognise and negotiate hazards. This will instil confidence. And a confident cyclist is a safe cyclist.
Link : Two wheels By Buffalo