If you have dedicated bus and bike lanes on any street, it slows traffic, since there is less width for cars. If you compensate by narrowing the sidewalks, you slow foot traffic too, which makes for fewer customers passing local merchants.
Take Western Ave., for your example. It is 6 lanes wide. If you dedicate 2 lanes to buses only, that leaves 4. With 2 lanes for parking, that leaves 2. Assuming a bike needs half a s much width, that leaves 1 lane for all car traffic. Which direction is it going to go? And where will all the traffic in the other direction go? I noticed that someone suggested putting the bus lanes in the middle of the street. This makes it even worse, since you need somewhere for the people waiting to stand.I suggest you look at the Howard St Bus/El terminal to see how much extra space this needs.
I'm in favor of dedicated bike lanes, but dedicated bus lanes would only work on wide, ONE WAY streets.

As both a driver, and a biker, I LOVE protected and buffered bike lanes. As a biker, I feel much safer. As a driver, I feel more comfortable sharing the road with bikes when they are within a protected or buffered lane. With protected lanes, I don't need to worry about hitting a bike that suddenly swerves out into traffic to avoid a pothole.

Yes

Yes