1.—(1) Subject to the following provisions of this Part, the signs which shall be placed at or near a Zebra crossing for the purpose of indicating it shall consist of globes each of which is—
(a)coloured yellow or fluorescent yellow;
(b)not less than 275 millimetres nor more than 335 millimetres in diameter;
(c)illuminated by a flashing light or, where the Department considers it necessary in the case of any particular crossing, by a constant steady light; and
(d)mounted on a post or bracket so that the lowest part of the globe is not less than 2100 millimetres nor more than 3100 millimetres above the surface of the ground immediately beneath it.
(2) One globe shall be placed at each end of the crossing and, if there is a pedestrian refuge or central reservation on the crossing, one or more globes may, where the Department considers it necessary, be placed on the pedestrian refuge or central reservation.
2. Where a globe is mounted on or attached to a post, whether or not specially provided for the purpose—
(a)the post shall be coloured in alternate horizontal black and white bands, the lowest band being coloured black;
(b)the bands shall be not less than 275 millimetres nor more than 335 millimetres wide except that the lowest band may be up to 1 metre wide; and
(c)the post may be internally illuminated.
3. A globe or the post on which it is mounted may be fitted with all or any of the following—
(a)a backing board or other device designed to improve the conspicuousness of the globe;
(b)a shield or other device designed to prevent or reduce light shining into adjacent premises;
(c)a light to illuminate the crossing.
4. A backing board or shield fitted to a globe shall—
(a)be firmly secured;
(b)not prevent the driver of a vehicle proceeding towards the Zebra crossing in question from seeing the globe; and
(c)not constitute a danger to a road user.
5. A backing board shall be coloured black and may have a white border.
6. A Zebra crossing shall not be taken to have ceased to be indicated in accordance with this Part by reason only of—
(a)the imperfection, disfigurement or discolouration of any globe or post; or
(b)the failure of illumination of any of the globes.
7. Nothing in this Part shall be taken to restrict regulation 7 or 8.