When should you not overtake?

Overtaking at a corner or bend is not advisable due to the restricted visibility and increased risk of encountering oncoming traffic or obstacles. Corners and bends can obstruct a driver's view of the road ahead, making it difficult to assess whether it is safe to overtake another vehicle. The lack of clear sightlines increases the likelihood of collisions, as the driver may not see vehicles approaching from the opposite direction or other potential hazards in time to react appropriately.

In contrast, aspects of road usage such as roundabouts, one-way roads, and wide-open roads usually present clearer conditions for overtaking. In these scenarios, visibility is generally better, allowing drivers to make more informed decisions about their ability to safely pass another vehicle. Overtaking in these situations, while still requiring caution and adherence to road rules, is typically less risky compared to attempting to overtake at corners or bends.