Regulation 13
Light signals for lanes
of Road Traffic (Traffic Signs) Rules
In the case of light signals regulating the use of traffic lanes —
the signals shall consist of 3 lights, which shall be a green downward arrow light, an amber inclined crossed bars light and a red inclined crossed bars light respectively and arranged horizontally facing the direction of approaching traffic;
the effective diameter of the lens of each light shall be at least 300 mm;
the height of the centre of the lens of each light above the road shall not be less than 5,200 mm;
the centres of the lenses of 2 lights placed next to each other shall not be more than 400 mm apart;
the illuminated green light shall be taken to indicate that vehicles may proceed along the lane over which the light is placed;
the illuminated intermittent amber flashing light shall be taken to indicate that vehicles may proceed with caution along the lane over which the light is placed; and
the illuminated red light shall be taken to indicate that vehicles shall not proceed beyond the signal light along the lane over which the light is placed.