Overtaking at intersections and their proximities is generally prohibited due to the risks involved. However, there is an important exception: **overtaking is allowed if the road has priority and is signposted**.

- **Signposted priority**: This means there are traffic signs that clearly indicate that the road you are traveling on has priority over others. These signs are crucial to ensure that all drivers understand who has the right of way, thus reducing the risk of accidents.

- **Safety at intersections**: Intersections are critical points where different traffic flows intersect. Proper signage ensures that drivers know when they can overtake without endangering other road users.

Therefore, the key to being able to overtake at an intersection is that the road not only has priority but that this priority is clearly indicated by signs. This ensures that overtaking is carried out safely and in accordance with traffic regulations.