The sign is called "Tent and caravan site." This sign indicates a site where you can camp with tents and park caravans. It is often placed near campgrounds, indicating that facilities are available for campers and travelers.

According to German traffic regulations, when you see this sign, it signifies that a nearby area is designated for camping, which may include amenities like restrooms, water, and waste disposal. It's a good idea to follow any further instructions or rules posted nearby, as they may indicate specific usage hours or any fees associated with camping in that location.

If you have any more questions about German traffic rules or need information on other signs, feel free to ask!