If the driver of a passenger vehicle wants to turn left but a streetcar is proceeding straight ahead, which vehicle has to wait?

In this scenario, the passenger vehicle must wait when a streetcar is proceeding straight ahead. This is based on the traffic laws in Germany, which prioritize the right of way for streetcars. Streetcars typically have a defined priority on the road, particularly when they are on their own tracks, making them the dominant vehicle in situations where they may be intersected by other vehicles.

Therefore, when a driver of a passenger vehicle intends to turn left in front of an approaching streetcar, it is required by law for the passenger vehicle to yield. This ensures the safety and smooth operation of both streetcars and regular traffic. The passenger vehicle must wait until it is safe to complete the turn without disrupting the streetcar's path.