A traffic calmed commercial zone (verkehrsberuhigter Bereich) starts here. What must you do?

Your answer is fully correct. In a traffic-calmed commercial zone (verkehrsberuhigter Bereich), you must be particularly vigilant for busy pedestrian traffic because pedestrians have priority and can use the entire road space. Additionally, you must pay attention to any indicated maximum parking time, which aims to ensure turnover and prevent long-term parking in these zones.

The rule about observing a minimum speed of 20 km/h is incorrect because such zones usually have a lower maximum speed limit (like 20 km/h), but there is no minimum speed requirement. You should drive carefully and slowly to maintain safety for pedestrians and other road users.

Remember: Pedestrian safety and parking regulations are key features of traffic-calmed zones in Germany.