# The Traffic Signs Regulations and General Directions 2016, Paragraph 51

Extent: E+W+S

(1) The direction of the chevrons must be reversed when the direction of travel is in the opposite direction.
(2) One of the boundary lines must be omitted when the marking is placed alongside the marking provided for at item 7 or 11 of the sign table in Part 6 of Schedule 8, denoting a cycle lane or bus lane respectively.

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Source: https://www.legislation.gov.uk/uksi/2016/362/schedule/11/paragraph/51 (the official version)
Page: https://openlegislation.uk/traffic-signs-regulations-and-general-directions-2016/schedule-11/paragraph-51
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.