What color and shape are work area/construction signs usually?

Work area/construction signs are typically orange and diamond-shaped to ensure they capture the attention of drivers and communicate the need for caution in a construction zone. The color orange is universally recognized as a warning that indicates hazardous conditions or construction activities ahead, signaling to drivers to reduce speed and be alert for possible changes in road conditions. The diamond shape is specifically used to convey caution in various situations, allowing for quick recognition by drivers, which is crucial for safety in dynamic environments such as construction sites.

While other colors and shapes serve different purposes—such as blue for informational signs and yellow for general caution—orange and diamond is the standard for construction-related signage. This color and shape combination helps differentiate construction warnings from other types of road signs.