I'm much more a fan of the design that places a buffer (either sidewalk or shrubs) between the CARS and any other type of vehicles. Sidewalks are tolerable as they are often raised above street grade and a vehicle usually has to be actively controlled to overtake such a raised divider.
Encouraging bikes and other personal mobility devices to use the sidewalk pushes the danger to pedastrians. I'd argue there really shouldn't be right turn lanes except in really select circumstances. Cities that have a lot of bikes like Copenhagen don't really have that many turns lanes. And when they do the mixing area from protected lane to unprotected bike lane is pretty clear.
