The new bike lanes on Blackstone Boulevard will probably cause more confusion than anything else.
One lane on each way of the previously two-lane boulevard is now bedecked with white paint, signifying that it's for bicyclists. So are cars not supposed to drive in the bike lane if bicyclists are not present? What about just a couple of byclists over a broad swath of boulevard?
The boulevard doesn't really need bike lanes. Sure, look long enough and you will find some motorists who think they have exclusive right to the roads, but this is a place where bicylists and drivers have mostly peacefully coexisted for years.