Outside built-up areas, a motorhome is going to overtake a heavy vehicle. Can a risky situation occur while they are driving side by side if there is a strong crosswind blowing from the left?
Safe driving
Explanation
Screen effect when overtaking with lateral wind from the left
With strong lateral wind from the left, overtaking a heavy vehicle creates the **screen effect**. The truck **partially blocks the wind** and, when both vehicles are driving **parallel**, the airflow suddenly changes: the motorhome may **swerve sharply towards the truck**, increasing the risk of scraping or losing control. The danger is greatest right next to the heavy vehicle and upon exiting its "shadow."
How to reduce the risk:
- **Reduce speed** before and during overtaking.
- Use a **low gear** for greater control and response.
- **Hold the steering wheel firmly** (without rigidity).
- **Counter-steer against the wind** smoothly and in advance when entering and leaving the area protected by the truck.
Select an answer
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