A discussion of whether or not "door zone" lanes lanes are terrible yielded an essential truth: To dramatically build bike mode-share, what we need a network of 8-to-80 facilities.
Are they a pragmatic, better-than-nothing approach on streets where stripping parking is seen as a nonstarter. Or are they a depressing capitulation to car culture?
Bikeshare traffic across the Allston and Fenway neighborhoods more than doubled after a city project added protected bike lanes on Commonwealth Avenue. Furthermore, the fastest growth involved trips that would have been likely to use the newly-built protected bike lanes.