What does this traffic sign indicate?

You answered correctly. This traffic sign is a general warning sign in Germany indicating potential danger related to horses and riders. It alerts drivers to be cautious because horses may suddenly cross or be on the road, and such situations require careful handling to avoid accidents.

The sign does not mean that horseback riders have priority or that motor vehicles are prohibited from passing—it simply warns about the presence of horses.

When you see this sign, you should reduce speed, watch carefully for horses and riders, and be prepared to stop if necessary. Horses can be unpredictable, and sudden noises or fast movements may startle them, so extra caution is important.

This understanding helps you respond safely in areas where horses are present on or near the road.