What shape are caution or warning signs typically?

Caution or warning signs are typically designed in a triangular shape to catch the attention of drivers and convey critical information about potential hazards on the roadway. The use of a triangle serves a practical purpose, as it is distinct and easily recognizable, prompting drivers to reduce speed or take caution upon approaching these warnings.

The triangular form is notably used for signs indicating yield or caution in various contexts, which reinforces their significance in alerting drivers. This shape helps differentiate warning signs from other traffic signs, such as regulatory signs that may appear rectangular or round. By utilizing universally recognized shapes, the traffic sign system enhances driver awareness and promotes safer driving behaviors.