Has anyone done a survey paper on the impact of sharrows? I skim papers on sharrows when (very occasionally) I come across one, but they seem to be based on a s

Has anyone done a survey paper on the impact of sharrows? I skim papers on sharrows when (very occasionally) I come across one, but they seem to be based on a small dataset from one city. I personally treat them as preferable to nothing, and except on really busy streets, preferable to door zone bike lanes. Of course there are options better than either, and I prefer those. But I also don't really think bicycle affordances are the solution -- a legal/policy war on cars and drivers is.