Warning road markings
Reversible Lane Lines (WM4)
Where
On any road.
Purpose
To warn drivers that the lane indicated by this marking can be used for traffic from the opposite direction at various times of day or night.
Action
Be on the lookout for approaching vehicles.
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Other warning road markings
- Railway Crossing Ahead (WM1)
- Continuity Lines (WM2)
- Dividing Lines (WM3)
- Yield Control Ahead (WM5)
- Lane Reduction Arrows (WM6)
- Mandatory Direction Arrow Ahead (WM7)
- No Overtaking or No Crossing Line Ahead (WM8)
- Arrestor Bed Ahead (WM9)