In which scenario should you fall back to the center of the road?

Falling back to the center of the road is essential when you intend to turn right. This position allows for better visibility of oncoming traffic and ensures that you have enough space to complete the turn safely. By moving towards the center of the road, you also provide yourself with the opportunity to signal properly and watch for pedestrians or other vehicles in the area before making your maneuver.

In contrast, positioning yourself in the center is not typically advised when preparing to turn left, as this can create confusion and disrupt the flow of traffic. Approaching a roundabout generally requires you to yield to existing traffic and maintain a flow, which doesn't necessitate moving to the center. Additionally, while overtaking another vehicle may lead you to momentarily enter the center of the road, the primary focus should be on ensuring that you have a clear line of sight and adequate space to pass safely rather than just positioning for a turn.