Drivers to give signals
2.—(1)  The driver of a vehicle on a road shall, in order to inform the traffic that he intends to stop, slow down or to change the direction of the vehicle to the right or to the left, signal his intention by means of an approved type of direction indicator as laid down in the Road Traffic (Motor Vehicles, Construction and Use) Rules.
[R 9.]
(2)  Signals under this rule shall always be made in sufficient time to enable traffic to take appropriate action for the avoidance of danger.