What does this traffic sign indicate?

The traffic sign you're referring to indicates an obligatory diversion for vehicles with dangerous goods. This means that certain routes are not suitable for these vehicles due to safety regulations, and they must follow the designated detour. The orange color and the shape of the sign are used to signal important instructions that require immediate attention.

According to German traffic regulations, vehicles transporting hazardous materials must adhere to specific travel routes to minimize risk to the public and the environment. This sign directs them to alternate paths that accommodate their unique operational needs. Understanding and following this sign is crucial for safety and compliance with the law.