You are travelling at a speed of approximately 40 km/h. The lights change from "green" to "amber" when you are 40 m away. What do you do?

According to German traffic rules, when the traffic light changes from green to amber (yellow) and you are still at a safe distance—such as 40 meters away at about 40 km/h—you should prepare to stop. Amber means "stop if it is safe to do so." Since you still have enough distance to stop safely without causing danger or obstruction, you must stop rather than proceed. Proceeding through an amber light when you could have stopped is generally not allowed because the light is about to turn red, indicating that cross traffic will get a green light soon. This rule helps prevent accidents and ensures the smooth flow of traffic.