What do the following signs mean?

Explanation

On the road branching off to the right, motorcycle traffic is prohibited.

A round sign with a red border and the image of a motorcycle announces a prohibition on motorcycle traffic. The white supplementary plate beneath it, with a single arrow pointing right, defines the direction in which the sign takes effect: the prohibition applies to the road that separates off to the right from this point, not to the route you continue along straight ahead.

These directional plates are usually posted before a junction, where a prohibitory sign on its own would only create ambiguity; the driver would not know whether the prohibition covers this road itself or the branching one. The arrow removes that ambiguity and allows the sign to be posted once, at one point, instead of putting a separate sign at the start of each branch.

The key point for the exam is that the arrow on a supplementary plate never inverts the meaning of the main sign. The red border around the sign means prohibition and stays a prohibition; the arrow only says where that prohibition applies. Any option that translates a round sign with a red border as "permitted" is wrong regardless of any other detail. Generalise this rule to the whole family of prohibitory signs: shape and colour create the ruling, and the supplementary plate only limits that ruling's scope, time or direction.

• A supplementary plate never reverses the ruling of the main sign; the red circle remains a prohibition and the arrow only shows the direction in which it applies.

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