What is the purpose of a reflective triangle?

The purpose of a reflective triangle is to alert other road users of a breakdown or accident. When a vehicle is stalled or involved in an accident, placing a reflective triangle behind the vehicle serves as a warning to approaching traffic. This visual alert is crucial for enhancing safety, as it gives drivers ample notice to slow down and avoid a potentially hazardous situation. The reflective surface of the triangle ensures visibility, especially in low-light conditions, making it an essential tool for roadside safety.

While other options may involve signs or signals, they do not specifically pertain to the primary function of a reflective triangle, which is focused on conveying danger or alerting to an unexpected hazard on the road.