What must you be prepared for here?

In the scenario depicted, several factors need to be considered for safe driving.

Firstly, rain can significantly affect visibility and road traction, leading to longer braking distances. Drivers must be aware of the potential for vehicles coming from the right, especially at intersections, adhering to the right-of-way rules.

The presence of a narrowed carriageway suggests that the road space is reduced, which may require cautious navigation and increased awareness of surrounding vehicles, particularly larger ones like trucks shown in the image.

Being prepared for these situations is crucial as they can contribute to the overall safety on the road, ensuring that you are ready to respond effectively to any challenges that arise.