Correct answer
To drive on the side of the refuge indicated by the arrow.
The vertical sign R-401b shown in the image indicates an obligation to pass on the left side of the refuge indicated by the arrow. This means that when you encounter this sign on the road, you must ensure you drive on the left side of the obstacle or protection area indicated by the arrow. The mandatory passage sign is crucial for road safety, as it guides drivers on how to navigate around obstacles on the road, such as pedestrian refuges, traffic islands, or construction zones.
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To drive in the left lane, reserving the right for certain vehicles.
To drive on the side of the refuge indicated by the arrow.
To turn right at the next intersection.
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Sign R-401B: mandatory passage
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