What is the main purpose of triangular road signs?

Triangular road signs are designed primarily to give warnings to drivers about potential hazards or changes in the road conditions. This can include alerts for things like sharp bends, junctions, or road work, ensuring that drivers are aware of these situations in advance. The use of a triangular shape is significant as it is universally associated with caution, which helps convey the need for increased vigilance.

While other types of signs serve different purposes—such as providing directions or regulating traffic—the explicit intent of triangular signs is to prompt drivers to exercise caution and be mindful of possible dangers ahead. This specific function is critical for maintaining road safety and preventing accidents.