When should you stop at a red and amber traffic signal?

The correct choice indicates that you should stop when the red and amber lights are showing. In traffic light systems, the red light signals vehicles to stop, while the amber (or yellow) light warns that the light is about to change to red. When both the red and amber lights are illuminated together, it is a clear sign that vehicles must come to a complete stop. This is crucial for ensuring the safety of all road users, including pedestrians and other vehicles, as it indicates that a change in the traffic signal is imminent and that advancing or proceeding could lead to dangerous situations.

Understanding the purpose of traffic signals and the corresponding signals that govern road behavior is essential for making safe driving decisions, particularly in emergency response situations where adherence to traffic rules is vital for both the driver and the patients being transported.