The sign you're referring to is known as "Direction indication by arrows" (1000-10). This traffic sign is used in Germany to provide directional guidance to drivers. It features arrows that point in the direction(s) vehicles are allowed to go, which can include straight, left, right, or a combination of these.

It's important to pay attention to this sign as it informs you of which directions are permissible at intersections, helping to prevent confusion and ensuring smooth traffic flow. For example, if you see an arrow pointing left, you are only allowed to turn left at that intersection.

Always follow the indications given by this sign, as failure to do so can lead to traffic violations and potential accidents. Let me know if you have any other questions!