What does this traffic sign indicate?

This traffic sign indicates that there may be icy conditions or packed snow on the road ahead. Drivers should be cautious and adjust their speed accordingly, as icy roads can significantly reduce traction and increase stopping distances.

In German traffic regulations, it's important for drivers to recognize signs that warn of hazardous conditions to ensure safety. Being aware of both icy conditions and packed snow is crucial, as they both require different driving strategies. For instance, if the sign is present, drivers should avoid abrupt maneuvers and maintain a greater distance from other vehicles to minimize the risk of accidents.