Symbolic warning signs
One vehicle width structure (W42)

Slow down if there is oncoming traffic, stop at least 6m from the structure and yield to the other vehicle.
Where
On any road.
Purpose
To warn that the carriageway ahead narrows to a width that will make it possible for only one vehicle at a time to pass. (5 meters wide)
Action
Slow down if there is oncoming traffic, stop at least 6m from the structure and yield to the other vehicle.
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Other symbolic warning signs
- Traffic signals ahead (W22)
- Traffic control “YIELD” ahead (W23)
- Traffic control ahead (W24)
- Scholar patrol ahead (W25)
- Pedestrian crossing (W26)
- Pedestrians (W27)
- Children (W28)
- Pedal Cyclists (W29)