Regulation 7 Placing of traffic signs
Where a road hump or series of road humps is constructed in a road the roads authority for that road shall forthwith cause to be placed and thereafter cause to be maintained—
traffic signs of a kind shown in diagram 557.1, in combination with traffic signs of a kind shown in diagram 557.2, 557.3 or 557.4 in Part I of Schedule 1 to the Traffic Signs Regulations in such positions as the authority may consider requisite for the purpose of securing that adequate warning of the presence of a road hump or a series of road humps is given to persons using the road; and
except in a case specified in sub-paragraph (c) below, on the road hump or, in the case of a series of road humps, on each hump in the series, the traffic sign shown in diagram 1060 in Schedule 2 to those Regulations; and
in a case where a road hump is placed within the area of a pedestrian crossing which complies with the requirements prescribed in the “Zebra” Pedestrian Crossings Regulations 1971, a traffic sign of the kind shown in diagram 544 in Part I of Schedule 1 to the Traffic Signs Regulations to face traffic approaching that crossing together with a traffic sign of the kind shown in diagram 547.5 in that Part.