text: Of course not.  We're talking about sharing the roads here, not making them car-excluded or bike-excluded.  
  
  Although there are some of both (some roads like high speed freeways are bike-excluded, while dedicated bike paths are car-excluded).  But for the most part we're talking about roads where both are allowed.  Cars often have to scoot over for bikes, and bikes often have to scoot over for cars.