Which type of cargo requires the use of triangular reflectors instead of flares?

The use of triangular reflectors is mandated for certain types of cargo to enhance safety during transportation, particularly when vehicles are stopped on the side of the road. Flares can pose a fire hazard, especially with cargo that is flammable, such as liquids or gases. Triangular reflectors, on the other hand, provide a non-flammable, visible warning signal to other drivers without introducing the risk of ignition that flares might present.

In scenarios involving flammable liquids or gases, the presence of heat or sparks can have catastrophic consequences, making it crucial to utilize reflective devices instead of flares. This requirement helps ensure the safety of both the cargo and other travelers on the road.

While other cargo types may require visual signaling for safety, they do not carry the same level of risk associated with flammable materials. Therefore, the choice of using triangular reflectors instead of flares specifically ties back to the inherent dangers posed by flammable cargo, emphasizing the importance of using appropriate safety measures based on the nature of the transported goods.