You are driving in a tunnel and approach the end of a traffic jam. What do you do?

In a situation where you are approaching the end of a traffic jam in a tunnel, it is crucial to prioritize safety and adherence to traffic regulations. According to German traffic laws, switching on the hazard warning lights is essential as it alerts other drivers of your situation, ensuring better visibility and caution among surrounding vehicles.

However, it is important to also consider your next steps once you reach the end of the traffic jam. In a tunnel, leaving the engine running while stationary can create dangerous conditions, so it is advisable to switch off your engine if you expect to be stopped for a longer duration. This not only reduces exhaust fumes but also mitigates the risk of a potential fire hazard in confined spaces.

If you're in a traffic jam and you're not making progress, making a U-turn is not permitted as it poses significant risks, especially in a confined area like a tunnel. Therefore, the correct actions to take are to activate your hazard lights, and depending on the situation at the end of the jam, you might need to switch off your engine if you anticipate a prolonged stop or need to leave the vehicle safely and legally.

Thus, combining both the activation of hazard lights and switching off the engine is necessary to ensure both personal and public safety according to German traffic regulations.