Is it really necessary to have a cyclists dismount sign? As resident of the RCaH I have never heard of a problem here, and whether it is formally a footpath or not, there is a lot of room. If there has been an a collision there it must surely be due to inconsiderate/carelessness, rather than the simple fact that there was a cyclist. As such is a sign going to make a difference? Is there any evidence that banning cycling in places where considerate cycling is safe does any more than stopping those who would take care anyway?