Separated bike lane designs sound great don't they? Bicycles and cars have their own space and don't have to worry about each other!
WRONG! Separated bike lanes make things MORE dangerous for cyclists. Drivers become unaware of cyclist they have a separated lane and when they do eventually have to cross paths cars don't think to look!
I still believe that putting both cyclists and cars on the same road, together, is a safer alternative. When both parties are physically sharing the road together, they are more aware of each other. Separated cycling lanes seem like a good idea, but they really just make cyclists "less annoying" to drivers.