What should you factor in when planning your route?

Your answer is correct because when planning a route, German traffic rules require you to consider several important factors for safety and legality. First, you must take into account driving and rest periods to prevent fatigue and comply with regulations, especially for professional drivers. Second, being aware of public holidays in different federal states is important as traffic conditions and regulations may vary, affecting travel time and road accessibility. Third, if your journey crosses borders, you need to know the traffic rules of other countries to ensure you follow their specific laws and avoid fines or accidents. Considering all these factors helps ensure a safe, legal, and efficient trip.