People get creamed on bikes all the time in bike lanes. Pedestrians on the sidewalks and bike paths just don't pay attention to anything other than what is 3-4 feet from them, and are always forcing you to dodge if you have any kind of speed if you're just even jogging.
It's more a cultural problem than a city planning problem. Contrast how seriously bike lanes are treated in (say) Munich, which is very seriously.
I am seeing more and more e-bikes though, which, since you can keep up with traffic relatively well, allow you ride in the car lane under most circumstances. That's what I do, and if some dickhead really feels the need to pass me when I'm going >25mph, I'll give them a wave at the next light. And probably be shot in the chest one of these days.
Having a good amount of reasonably well maintained dedicated bike lanes would have made rollerblading to work a lot easier!