Direction of movement signs
Two-way Traffic (W18)

Be aware that you are entering a roadway with two-way traffic and have to be more careful when overtaking to allow for oncoming vehicles.
Where
On any one-way road.
Purpose
To warn that the one-way roadway you are travelling on will soon become a two-way roadway.
Action
Be aware that you are entering a roadway with two-way traffic and have to be more careful when overtaking to allow for oncoming vehicles.
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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 crossroad (W19)
- Lane ends (W20)