| Signals, other than those required under rule 2, to be used in certain circumstances |
| 20. Whenever the size or construction of any vehicle or the size or nature of a load or of any covering over the load on such vehicle is such that the signals required by rule 2 when given are not fully visible to traffic approaching from the rear, a stop light and a direction indicator of an approved type as prescribed in the Road Traffic (Motor Vehicles, Construction and Use) Rules, capable of indicating the intention of the driver of such vehicle shall be affixed to the vehicle in such a position that the device is clearly visible to traffic approaching from the rear and shall be used to give the signals for stopping and turning to the right or left. [R 9.] |