Where: Below another sign.
Purpose: To give more information about the main message on regulatory, warning or diagrammatical guidance signs.
Action: Pay attention to these signs in order to realise what the danger is, what a safe speed is, how far away the danger is and the distance the danger will continue.
Where: Next to the entrance of a parking area or in the top right-hand or top left-hand corner of a notice board.
Purpose: To inform you of the existence of an information office or notice board.
Action: You can obtain information about the area at this sign.
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.
Multi-phase traffic signals
Where: At intersections at the same pole as traffic signals (robot) under signal head.
Purpose: To point out that the signals at this intersection does not follow the normal sequence.
At a normal intersection you would expect that the signal in your direction will change to green after the signal for cross traffic was yellow.
At this intersection your signal may remain red whilst the signal in the opposite direction changes to green.
Action: Do not move off when approaching traffic moves off. Wait until the signal is green.
The sequence of the traffic signals at this intersection can be different during normal and during peak times.
Where: On the left-hand side of any road.
Purpose: To show that there is a transport modal transfer point or terminus nearby where passengers may change their mode of transport.
Action: Make sure that it is safe to slow down and stop to drop someone off or pick someone up. Also look out for pedestrians who may cross the road.