My city has greatly expanded bike lane miles in the last couple of years. The only real problems we have had with them was for two reasons: lack of public education on what the markings meant and some of the lanes were poorly designed while others are fine. It takes time, but everyone is learning the best approach to this. Kudos to my city for putting in these lanes, and more are planned, but it hasn't been a bump-free process. It has been a learning curve for everyone, and that is part of it.