Yes, but those bus lanes shown are also allowed to be used as turning lanes by private cars.

What those busy streets don't show is that there is almost always a calm street one block over and parallel that is frequently a designated bike route (not that the designation means much, but they are better streets for bike riding).

I used to commute by bike in Denver, and it isn't the worst major city in America, but it certainly could be improved, especially in the downtown core where bike lanes exist, but drivers constantly cut across them/parked in them. I normally felt safer using a traffic lane than the bike lane downtown for that reason

Maybe legally, but because they don't have barriers protecting people from cars, they lack "Subjective Safety," which is one of the fundamental principles of Dutch cycling network design (and is essential for the average person—as in children and elderly people, not just the brave lycra warrior—to feel comfortable cycling): http://www.aviewfromthecyclepath.com/2008/09/three-types-of-...