What is the purpose of reflective triangles in passenger vehicles?

Reflective triangles are an essential safety feature used in passenger vehicles, primarily designed to warn other drivers of a roadside emergency. Their bright colors and reflective surfaces make them easily visible, especially in low-light conditions or during inclement weather. By placing these triangles at a safe distance behind a vehicle that has broken down or is otherwise immobilized, drivers alert oncoming traffic to the potential hazard, helping to prevent further accidents.

While enhancing visibility is indeed a benefit of reflective triangles, their primary function is to serve as a warning device. They are not intended for decoration or indicating the vehicle's size. When used correctly, they play a critical role in roadside safety, helping to protect both the occupants of the disabled vehicle and approaching drivers.