Correct answer
The distance over which the prohibition applies in the direction of the arrow.
The supplementary S-821 panel (S-820 if it points to the left), placed below a vertical prohibition sign, indicates the distance over which the prohibition applies in the direction of the arrow (to the right in this case).
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The distance over which the prohibition applies in the direction of the arrow.
The distance to the beginning of the prohibition.
The extent over which the prohibition applies on both sides of the carriageway.
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