Originally Posted by cyccommute

In your third picture (again, I got it wrong the first time), the bike way is (roughly) 2 meters or about 6 feet. A car door ranges from 80 cm to 100cm (32" to 39"). A door opened into the travel lane reduces the lane by more than half and there is no "buffer" for the cyclist to move to to avoid the door opening. Floating parking lanes trap the cyclist between the car and the curb by design. If someone exits the vehicle without looking...a very common occurrence...the cyclist has even less room. Floating lanes are about the dumbest idea anyone ever came up with.

Originally Posted by cyccommute

Not in my experience. Protected lanes without floating parking lanes tend to be wider but floating parking is more popular. The third picture in mr._bill’s post above shows the typical width of a floating parking lane I’ve seen. They tend to be only about 6 feet wide to begin with and a foot to 18” is taken up by a gutter pan. Riding down the center of one (to avoid the pavement/gutter pan seam) puts the cyclist about 3’ away from cars which is fully in the “door zone”.