Why do truck drivers carry reflective triangles?

Truck drivers carry reflective triangles primarily for safety in roadside emergencies. These triangles serve as a warning signal to other drivers when a truck is stationary or disabled on the side of the road. By placing the reflective triangles at appropriate distances behind the vehicle, drivers can alert oncoming vehicles of a potential hazard, significantly reducing the risk of accidents. The reflective nature of these triangles helps ensure they are visible in low-light conditions, making them an essential safety tool for drivers. In the context of roadside emergencies, having this equipment readily accessible can mean the difference between a safe situation and a dangerous one for both the stopped driver and other motorists.