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

The signs in the image indicate that you are entering a "20 km/h zone," which is a traffic calmed area.

1. **Speed Limit**: The top sign mandates that the maximum speed allowed is 20 km/h. This is to ensure safety in areas where pedestrians may be present, such as near schools or shopping areas.

2. **No Parking Zone**: The second sign indicates that parking is not allowed. This helps to keep pedestrian areas clear and promotes safety and accessibility.

3. **Parking Time Limit**: The bottom sign indicates that if there are designated parking spots, there is a maximum parking time of 2 hours. This is meant to ensure turnover in parking spaces, allowing more users access to the area.

In summary, entering this zone requires you to drive at a maximum speed of 20 km/h, be aware that parking is prohibited unless otherwise indicated, and if there are specific parking areas, note the time limit for parking. Always be vigilant for pedestrians in such zones.