The sign you referred to is the Note Symbol 1010-14. This sign indicates a "Parking" area, specifically designed for motor vehicles. It usually signifies that there is a designated parking zone nearby where vehicles can be parked. The sign may also include additional symbols or text indicating specific parking regulations, such as time limits, fees, or restrictions on certain types of vehicles.
In Germany, it's important to always check for any accompanying signs or markings that provide more detailed information regarding parking rules in that particular area. Violating these rules could result in fines or having your vehicle towed.
If you have any further questions about parking regulations or other traffic rules, feel free to ask!