Page:The Traffic Signs Regulations and General Directions 1975 (UKSI 1975-1536).pdf/15

 (7) The signs shown in diagrams 603, 604 and 814 shall be illuminated throughout the hours of darkness by a means of internal or external lighting.

(8) The sign shown in diagram 828 shall be internally illuminated by an intermittent light flashing at a rate of not less than 54 nor more than 90 flashes per minute during such times only as it is necessary that the sign shall be illuminated for the purpose of indicating the information shown in the diagram relating to that sign.

(9) The signs shown in diagrams 560 and 561 shall not be illuminated by the fitting of a means of internal or external lighting.

(10) Subject to the foregoing paragraphs of this Regulation and to Regulation 19, every sign (except the signs shown in the diagrams listed in the next following paragraph and therein referred to as the excepted signs") shown in any diagram in Part 1, Part II, Part Ill, in diagrams 812 and 819 10 819.2 only in Part IV and in any diagram in Part V of Schedule 1 shall, when erected on a road within 50 metres of a street lamp lit by electricity, bc, subject to paragraph (14), illuminated throughout the hours of darkness by a means of internal or external lighting unless the sign is placed temporarily on the road for the purposes of a temporary statutory provision or by reason of some emergency.

(11) The excepted signs mentioned in the last preceding paragraph shall be the signs shown in any of the following diagrams, that is to say, 515, 532, 536, 539 to 542, 545, 548 to 552, 554, 554.1, 557 to 559, 562, 567 to 567.2, 569.1, 574, 576, 605.1, 617 (when used in combination with the sign shown in diagram 618), 624, 625.1,633 to 641, 642 (when the diameter size is 450 millimetres or less), 643, 644, 646,647, 650, 651, 660 to 662, 713 to 717, 724 to 726, 728, 728.2, 728.3, 732 to 759, 857,912,913.1, 917 and 921,

(12) Subject to the foregoing paragraphs of this Regulation and to the provisions of Regulation 19, any sign shown in a diagram in Schedule 1 may be illuminated by a means of internal or external lighting.

(13) Subject to the provisions of Regulation 19, where any sign shown in a diagram in Schedule 1 is to be illuminated by a means of external lighting, that means shall be either fitted to the sign or to the structure on which it is mounted or otherwise specially provided.

(14) The requirement in paragraphs 3(b), 4(c), 5(b), 6 and 10 for illumination of a sign throughout the hours of darkness shall not apply where the sign is placed only temporarily on the road by reason of the execution of works or any obstruction on a road and that road is subject to a speed limit of 30 m.p.h. or under.

16. Where a sign shown in any of the diagrams 521,522, 543, 545, 562, 606, 609 to 611, 612 to 614,616 to 622.2, 629.1 and 652 to 655 is placed on or near a road for the purpose of conveying a warning from time to time to vehicular traffic or in connection with a statutory prohibition, restriction or requirement which relates to such traffic but does not apply at all times, the sign shall be illuminated by a means of internal or external lighting during such times only as, for the purpose of conveying that warning or in connection with that prohibition, restriction or requirement, it is necessary that the sign shall be visible from a reasonable distance to drivers of approaching motor vehicles, and where a sign shown in any of the diagrams 701 to 714, 718 to 724.2, 727 to 736.1, 741, 741.1, 819, 819.1 to 819.3 or 903 to 910.1 is placed on or near a road for the purpose of conveying information from time to time to such traffic, the sign shall be illuminated wholly or in part during such times only as it is necessary for the said purpose that the sign shall be so visible as aforesaid.