Co-ordinated traffic signals
Where: On the left-hand side of the carriageway before an intersection.
Purpose: To inform you that the traffic signals on this route are co-ordinated and that the signals will be green at all the subsequent intersections if you maintain the indicated speed.
Action: If possible maintain the recommended speed. However, make sure that it is safe to enter every intersection and look out for drivers that do not yield. The speed indicated is a recommendation and not a speed limit.
Where: On the left-hand side of the road.
Purpose: To inform you of a temporary experiment or research being carried out on the road.
Action: Obey all other road traffic signs.
Look out for vehicles, pedestrians and other hazards engaged in the experiment.