A single axle caravan with overrun brake is parked on a downhill slope. How do you have to secure it to prevent it from rolling away?

To secure a single axle caravan with an overrun brake parked on a downhill slope, it's essential to use both the parking brake and wheel chocks. The parking brake provides immediate resistance against rolling, while the wheel chocks offer additional physical barriers to prevent movement.

According to German traffic regulations, both measures are necessary to ensure maximum safety and compliance with vehicle handling standards. Simply relying on one of these methods may not provide adequate security. Hence, applying both ensures the caravan stays safely in place and complies with the law.