How can you tell if a horse-drawn carriage wants to change direction?

In this case, you correctly identified that a horse-drawn carriage signals a change of direction by extending the driver's arm, which is an important visual signal on the road. However, to fully understand when a horse-drawn carriage intends to turn, it's also crucial to recognize the use of a traffic paddle. This paddle displays clear intentions to other road users, making it necessary to include it in your answer.

According to German traffic regulations, both the arm signal and the traffic paddle are recognized methods for indicating a direction change. The absence of one may lead to misunderstandings or dangerous situations on the road. Ensuring that all relevant signals are recognized helps maintain the safety of all road users.