What must you do in case of a traffic jam in a tunnel?

In a traffic jam within a tunnel, the key points are to ensure safety for yourself and others.

Firstly, maintaining a safe distance of approximately 5 meters to the vehicle ahead is essential. This distance allows for better reaction time if the car in front moves, ensuring that you do not rear-end it.

Secondly, switching on your hazard warning lights serves as a warning to other drivers that you are stationary, which is crucial in a tunnel where visibility can be limited.

However, it is important not to secure and leave your vehicle immediately unless it is absolutely necessary and safe to do so. Leaving your vehicle can create additional hazards, especially in a confined space like a tunnel where traffic flow can change rapidly.

Thus, the correct actions in this situation help in maintaining safety and preventing accidents while ensuring that you communicate your vehicle's status to other drivers.