Which color and shape are typically used for warning signs?

Warning signs are designed to alert drivers to potential hazards or changes in the road conditions ahead. In the context of traffic signs, the color yellow is widely recognized as a cautionary signal, indicating that drivers should slow down and remain alert. Moreover, the diamond shape is specifically used for warning signs to draw attention and convey important safety information effectively. This combination of a yellow background with a diamond shape ensures that these signs stand out and are easily recognizable, helping to communicate warnings about road conditions such as sharp turns, intersections, and other potential hazards effectively to drivers.