And where exactly would they put it? I know that here on the Gold Coast, for example, there just would not be space for a continuous "bike freeway" that actually went anywhere. I think you'll find this is the case in most cities. This is the main reason that I believe campaiging for bike paths and separate facilities generally is a complete waste of time - not to mention the increasingly violent clashes between cyclists and pedestrians over path space (how many people seem to forget - pedestrians are just drivers lucky enough to find somewhere to park)

I keep hearing people saying "but if it actually went somewhere...", well it isn't going to. Given the amount of space that's already been dedicated to one transport network (around 60% of most urban areas), there's no way anybody in their wildest dreams is going to find space for a second similar transport network without at least partially removing the first one. This isn't going to happen anytime soon.

As far as trying to remove pedestrians goes, this is also a pipe-dream. And I don't see why they should be removed. After all, it's probably their footpath/sidewalk that's been ripped up to make way for the "bike path" in the first place. So why get rid of them at all. Simply put, if you're going to use their space, accept their presence. If not, use the road.