Not worth the paint, for the most part - at least as they are implemented now. I don't care that there are ways aware and experienced cyclists can use them safely - for far too many cyclists they are an invitation to NOT think, to ASSUME the wisdom of road engineers, and to find themselves in nasty situations which can turn ........ really nasty, fast.
One exception I'd make, from my experience, is
here, where the cycle lane heads out between the left turn lane, and the straight ahead lanes. The cycle lane works, and the ASL works (partly because it also takes cycle traffic across the road, using the crossing).
But I like
thefollen's point about where there are large numbers of cyclists. That makes sense to me (at least in theory - not a situation I've seen in Leeds

).
It'd change the standard design and the legislation - no more silly excuse for a very narrow cycle lane to filter through
on the left to the front. A "safe box" in the front, with an advance green signal for cyclists to get started and more or less clear before the "motor traffic" green ? Hmmm - one problem: it's kinda commonsensical. Won't happen.
