What do you have to observe in a traffic situation like this one?

In this traffic situation, you must observe specific rules to ensure safety for all road users.

1. **Crossing the center line to pass an obstruction**: This action is generally permissible, but only if it can be done safely and without endangering other vehicles or pedestrians.

2. **Crossing the center line to overtake**: Overtaking is also allowed, but again, this must be done with caution and awareness of oncoming traffic. Proper signaling and adequate distance from other vehicles are crucial.

3. **Not crossing the center line if it endangers other traffic**: This is a fundamental safety rule. If crossing the center line poses a risk to other drivers or pedestrians, it must be avoided to prevent accidents.

Following these points is essential under German traffic regulations to ensure safety for everyone involved. Adhering to these rules helps to prevent collisions and ensures that all road users can navigate safely.