"Bicycles will be removed" - legal?

as the railings are almost always on pavements i fail to see how there would be no danger of obstruction.

The likes of Virgin Cable, BT and COLT seem to be able to plant cabinets on the pavement, often painted dull olive green such that partially sighted folks fall over them. There are "code of practice" minimum width for sidewalks. In many places the half-metre reduction in width caused by bikes against railings would still leave way over the safe width. We need to bring town planners on side.