As someone who does bike a fair amount, not commuting though, I bike with no trust of the drivers around me. I don't blame heightened injuries on peds or bicyclists at all. Smartphones and the drivers themselves get most of that blame. I'm just saying some of the ambitious bike lane design I see is foolish.
Anecdotal to be sure but we had a variety of folks years ago in Milwaukee that wanted to build dedicated bike lanes on the Hoan Bridge, a 2 mile arched span, elevated about 120 feet right along Lake Michigan. The bridge has a colorful and checkered history for many other reasons. However, were talking about a city which avg air temperature is below 50 degrees, on a bridge wholly exposed to the elements. Half your ride is a gradual ascent. I love biking but this was crazy expensive and not at all sensible on an interstate spur, not to mention downtown is no less accessible on bike via the city streets below and adjacent to the bridge. I guess that route is a little too icky for some. More of the bus v train talk. DOT ended up rejecting the idea.
Long bike lanes over bridges do work in a lot of places but some places just make no sense.
