Which basic code of conduct must you observe in a tunnel?

In tunnels, special safety precautions are required due to the confined space and possible emergency situations. You must always drive with dipped headlights, even during the day and in well-lit tunnels, so that your vehicle is clearly visible to others. Making a U-turn in a tunnel is forbidden because it can cause dangerous encounters with oncoming traffic and block escape routes. Lastly, you must always follow the instructions and information given by tunnel personnel, as they are responsible for maintaining safety, especially in emergencies. Observing these three rules helps prevent accidents and ensures everyone’s safety inside the tunnel.