Which of the following is a safety feature utilized in the tunnel?

The correct choice emphasizes the significance of vehicle sensors as a safety feature utilized in the tunnel. Vehicle sensors play a critical role in monitoring and managing the flow of traffic within the tunnel environment. They can detect the presence and speed of vehicles, allowing for real-time adjustments to traffic signals, warnings, and alerts for both drivers and tunnel operators. This technology enhances safety by preventing collisions and managing congestion, ensuring a smoother traffic flow.

In addition to vehicle sensors, other safety features such as emergency exit signs, traffic cones, and speed limit signs serve important functions in promoting overall safety. Emergency exit signs guide individuals to safety in case of an emergency, while traffic cones can help direct drivers and delineate safe paths. Speed limit signs provide essential information about safe driving speeds in the tunnel to prevent accidents. While all these elements contribute to tunnel safety, vehicle sensors are particularly crucial for dynamic safety management by actively responding to traffic conditions.