# The Roads (Traffic Calming) (Scotland) Regulations 1994, Regulation 6: Restriction on the construction of rumble devices


Where a rumble device is constructed in a road—
(a) no vertical face of any material forming that device shall exceed 6 millimetres measured vertically from top to bottom of that face; and
(b) no part of the device shall be more than 20 millimetres above the surface of the carriageway;
provided that a measurement shall be deemed to comply if it is no more than 5 per cent or 1 millimetre, whichever is the greater, more than the corresponding measurement in this regulation.

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Source: https://www.legislation.gov.uk/uksi/1994/2488/regulation/6 (the official version)
Page: https://openlegislation.uk/roads-traffic-calming-scotland-regulations-1994/regulation-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.