Direction of movement signs
Concealed driveway (W21)

Slow down so that you can stop or yield if there is cross traffic that do not yield at the intersection. Remember that a driver of such a vehicle that joins your road from the concealed driveway sometimes finds it also difficult to see you.
Where
On any public road.
Purpose
To warn that one or more concealed driveways enter the road you are driving on from the left or right in such a way that you cannot easily see the road or traffic travelling on that road.
Action
Slow down so that you can stop or yield if there is cross traffic that do not yield at the intersection. Remember that a driver of such a vehicle that joins your road from the concealed driveway sometimes finds it also difficult to see you.
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Other direction of movement signs
- Traffic circle (W12)
- Gentle Curve (W13)
- Sharp Curve (W14)
- Hairpin bend (W15)
- Winding Road (W16)
- Combined Curves (W17)
- Two-way Traffic (W18)
- Two-way traffic crossroad (W19)