The problem segregating bicycles is that that automatically means that they are excluded from the best infrastructure which are the regular roads, which by the way do not belong to cars. I suffer that discrimination everyday when I ride my bike and there is a bike path adjacent to the road in places where I had no problem before, and that's after many years of riding so I can tell you that it is completely safe to share the road. Bike paths are built to kick us out of the roads it is pretty obvious to me now.