The Motorway sign indicates the beginning of a motorway or an autobahn in Germany. When you see this sign, it means that you are entering a stretch of road designed for high-speed traffic. Here are some key points to note regarding motorways in Germany:

1. Speed Limit: While there are sections of the motorway with no speed limit, many areas do impose limits, so be attentive to the posted signs.

2. Lane Usage: You are required to use the right lane for slower-moving traffic and the left lane for overtaking. Use of the left lane should be minimal and only for passing.

3. Overtaking: Be cautious when overtaking; ensure that you are clear of other vehicles before changing lanes.

4. No Stopping: Stopping on the motorway is only allowed in case of emergencies or if your vehicle breaks down. There are special emergency lanes provided for such situations.

5. Entrance and Exit: When entering or exiting the motorway, use the acceleration or deceleration lanes to adjust your speed appropriately.

If you have any specific questions about driving on motorways or related rules, feel free to ask!