Regulation 4 Highways and circumstances in which road humps may be constructed
No road hump shall be constructed in any trunk road, special road or principal road.
Save as provided in regulation 7, no road hump shall be constructed in any highway unless the requirements specified in paragraph (3) below are satisfied.
Those requirements are that:–
in the highway there is either–
a system of street lighting furnished by at least three lamps lit by electricity and placed so that not more than 38 metres separate any of the lamps from the one next to it, or
lighting specially provided for the hump; and
at least one of the requirements specified in paragraph (4) below is satisfied.
The requirements referred to in paragraph (3)(b) above are as follows:–
all vehicular traffic approaching the hump will within 40 metres of the hump either have entered the highway in which the hump is placed through a junction with another highway or have passed through a horizontal bend in which it has changed direction by not less than 70 degrees within a distance of not more than 32 metres;
within 40 metres of the hump there is in the same highway as the hump the closed end of a cul-de-sac;
within 40 metres of the hump there is in the same highway as the hump a traffic sign, addressed to traffic approaching the hump, of the type specified in diagram 616, 617 other than any such sign when used with one of the plates specified in diagram 618, 618.1 (except when varied to read “no vehicles”) 619.3, 619.4, 620 or 620.1 in Part II of Schedule 1 to the Traffic Signs Regulations; or
within 60 metres of the hump there is in the same highway as the hump a traffic sign, addressed to vehicular traffic approaching the hump, of the type specified in diagram 1002.1, 1003, 1003.1 or 1003.3 in Schedule 2 to the Traffic Signs Regulations.