Another option is to have islands in the street or have parts of the boulevard jut out so the street winds. Something like the photo below but not as hideous.
This is something I want on my street. It's an arterial, two lanes with parking on either side, but parking is rarely used and people regularly use it to pass on the right at high speed. Replacing some parking spots with something like that wouldn't impact shoppers or traffic but would make it safer for people waiting to cross.