"Only 50% of the cycling routes in the Netherlands are separated from vehicular traffic." Oh, ONLY 50%? Compare that to America, where, including protected bike lanes and bike trails, it's probably what, 5%, tops?
In "bike advocacy" circles it's common to hear people claim that bike lanes have to be separated from vehicular traffic all the time. This is pointing out that view is wrong.
And, actually, I agree with this. I really don't think bicycles and cars can share the road. It's simply too easy to do things like "door" a bicycle unintentionally.