What is the primary purpose of hazard warning signals?

The primary purpose of hazard warning signals is to alert other drivers when a vehicle is stopped. These signals are activated when a vehicle is unable to proceed, often due to mechanical issues or other unexpected situations that could pose a hazard on the road. By using hazard lights, the driver communicates to surrounding vehicles that caution is needed, hence enhancing overall road safety.

This warning is crucial because it helps prevent accidents by making the stationary vehicle visible, especially in low visibility conditions or at night. The use of hazard lights ensures that other drivers are aware of the need to slow down or change lanes to avoid the stopped vehicle, thereby reducing the risk of collisions.

Other options may mention signaling turns or indicating parking status, but those functions are served by different signals such as turn indicators and parking lights. Therefore, the utility of hazard warning signals specifically revolves around highlighting when a vehicle is in a position that may be dangerous to other drivers.