# The Road Humps (Scotland) Regulations 1990, Regulation 5: Nature, dimensions, location and spacing of road humps


(1) Save as provided in regulation 7, no road hump shall be constructed or maintained in a road unless—
(a) it complies with one of the sets of specifications in the Schedule, so, however, that a measurement shall be deemed to comply if it is—
(i) in the case of a vertical measurement, no more than 12 millimetres;
(ii) in the case of a horizontal measurement no more than 5 per cent;
greater or less than the corresponding measurement shown in the specification;
(b) it is at right angles to an imaginary line along the centre of the carriageway of the road in which it is placed; and
(c) where it is constructed or maintained in a road with a gradient of more than 10 per cent, it is not within 20 metres of the top of that part of the road which has that gradient and where it forms part of a series of humps the distance between road humps on that gradient in that series is not greater than 70 metres.
(2) A road hump of a type which complies with the specifications shown in diagram No 1 or No 3 in the Schedule may be constructed and maintained in a road so that its centre line, at right angles to the edge of the road, is in the same position as the centre line of the pattern of black and white stripes specified in paragraph 4(1) of Part I of Schedule 2 to the “Zebra” Pedestrian Crossings Regulations 1971().
(3) Save as mentioned in paragraph (2) above, no road hump shall be constructed and maintained within the limits of a zebra controlled are as defined in regulation 3(1) of the Regulations mentioned in that paragraph or within 30 metres from the imaginary line along the centre of the pattern of stripes mentioned in that paragraph.
(4) A road hump which complies with the specifications shown in diagram No 1 or No 3 in the Schedule may be constructed and maintained in a road so that its centre line, at right angles to the edge of the road, is in the same position as the centre of the limits of the crossing from one side of the road to the other as shown in the diagrams in Schedule 2 to the “Pelican” Pedestrian Crossings Regulations and General Directions 1987().
(5) Save as mentioned in paragraph (4) above, no road hump shall be constructed and maintained within the limits of a “pelican” crossing as defined in article 3(2) of Part I of the Regulations mentioned in that paragraph or within 30 metres of any part of any such crossing.
(6) No road hump shall be constructed or maintained in a road—
(a) on a railway level crossing or within 20 metres of the nearest rail forming part of the railway track at any such crossing;
(b) under or within 25 metres of any part of a structure over a carriageway of that road, any part of which structure is 6.5 metres or less above the surface of the carriageway;
(c) above or within 25 metres of any part of a bridge, tunnel, culvert or other similar structure over which a carriageway of that road passes.
(d) within 8 metres of a road junction giving access to vehicular traffic to that road or a horizontal bend in which a vehicle has to change its direction by more than 45 degrees within a distance of less than 50 metres;
(e) within 20 metres of any part of any traffic sign of a kind shown in diagram 845, 846, 847 or 848 in Part IV of Schedule 1 to the Traffic Signs Regulations or within 10 metres of a traffic sign of a kind shown in diagram 1025, 1025.1, 1025.2 or 1025.3 in Schedule 2 to those Regulations; or
(f) when it would form part of a series of more than 20 humps.

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Source: https://www.legislation.gov.uk/uksi/1990/2623/regulation/5 (the official version)
Page: https://openlegislation.uk/road-humps-scotland-regulations-1990/regulation-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.