What signs indicate a vehicle is in distress on the road?

The presence of hazard lights, flares, or vehicles pulled to the shoulder serves as a clear indication that a vehicle is in distress on the road. Hazard lights are specifically designed to alert other drivers of an emergency situation or potential hazard, signaling that a vehicle may not be operating normally. Flares can provide a visual warning to oncoming traffic, making them aware that there is a vehicle issue nearby. Additionally, when a vehicle is pulled to the shoulder, it often indicates that the driver is experiencing some trouble, whether it be mechanical failure, a flat tire, or another urgent matter that necessitates stopping. Recognizing these signs is crucial for safely navigating roads and understanding when to offer assistance or proceed with caution. Other signs listed, such as broken tail lights or driver behavior like waving, do not consistently convey that a vehicle is in distress in the same clear and universally recognized way.