# The Traffic Signs Regulations and General Directions 2016, Paragraph 4: Traffic light signals

Extent: E+W+S

(1) Sub-paragraph (2) applies to the red, amber and green light signals shown in the diagram in column 3 of the Part 2 sign table at each of items 1 to 4 (types of traffic light signals), including, for items 1 and 3, when, as described in paragraph 2(6), the green signal is a green arrow.
(2) The order of illumination for the light signals must be as follows—
(a) red;
(b) red and amber together;
(c) green;
(d) amber.
(3) The duration of the period when the red and amber light signals are illuminated together must be 2 seconds.
(4) The duration of the period when the amber light signal is illuminated on its own must be 3 seconds.
(5) The requirement in sub-paragraph (3) or (4) is to be treated as having been met if the duration is 0.25 seconds more, or less, than that specified.

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Source: https://www.legislation.gov.uk/uksi/2016/362/schedule/14/part/1/paragraph/4 (the official version)
Page: https://openlegislation.uk/traffic-signs-regulations-and-general-directions-2016/schedule-14/part-1/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.