The Road Humps (Scotland) Regulations 1998

Placing of traffic signs

6.  Subject to regulation 7, where a road hump is constructed on a road the roads authority for that road shall place and maintain appropriate traffic signs as prescribed in the Traffic Signs Regulations in such positions (if such positions are not prescribed in the Traffic Signs Regulations) as the authority consider requisite for the purpose of providing adequate warning of the presence of the road hump.