What does this traffic sign indicate?

This traffic sign indicates an autobahn section that is normally not used very much. It is used to mark a lane or section of the autobahn where traffic is usually light or less frequent.

Understanding this sign helps you recognize parts of the autobahn that may have less traffic, which can affect driving behavior and expectations for other vehicles. It does not indicate an exit or diversion for hazardous materials; those are marked with different signs. This knowledge is important for safe and informed driving on German highways.