The traffic sign "Single-track vehicles allowed" (1022-13) indicates that single-track vehicles, such as motorcycles, bicycles, and scooters, are permitted to use the roadway or area that is specifically designated by the sign.

In Germany, this sign is typically placed at the beginning of a road or path where single-track vehicles are authorized, while indicating that other types of vehicles may not be allowed, either due to road restrictions or safety concerns.

This sign helps ensure that traffic flow is organized and that single-track vehicles can navigate the area safely. It's important for drivers of all vehicle types to pay attention to such signs to ensure compliance with traffic regulations. If you have any further questions about this sign or related rules, feel free to ask!