Indeed they are not, but they represent a code of practice protecting the RIGHT of cyclists not to be selectively prevented from using the road. The dibble can wipe their arses all over it if they want, but they do not have the moral right to selectively discriminate in such a way. The code is official recognition that councils and contractors have to acknowledge that should not be done, so why do the Dibble think they can do it solely for the sake of convenience? If people don't bitch about it officially, they'll carry on doing it.
A letter to the area commander is worth 10,000 posts on here.