At these traffic lights with a green arrow sign, where should a vehicle stop before turning right?

At traffic lights showing a red signal with a green arrow for right turns, it's important to understand that the green arrow enables a turn while still requiring caution. According to German traffic regulations, vehicles must stop:

1. At the stop line, if there is one – this is crucial for ensuring you yield to any pedestrians or cyclists crossing.
2. Before the crossing or junction if there is no stop line – this ensures visibility and safety for all road users.

This combination ensures that drivers observe traffic rules that promote safety, allowing them to check for any potential hazards before executing the turn, even when the green arrow is displayed.