Which color is primarily used for warning signs on the road?

The primary color used for warning signs on the road is orange. This color is typically employed to alert drivers to conditions that may require caution, such as construction zones or road maintenance. Orange warning signs communicate temporary hazards, ensuring that drivers are vigilant about potential changes in road conditions or restrictions. The use of orange as a warning indicator is standardized in traffic signaling due to its visibility and ability to attract attention, particularly in situations where safety is paramount.

The other colors serve different functions; for example, red is reserved for stop signs and prohibitory messages, green is used for informational signs indicating directions or distances, and blue is commonly associated with services and facilities. Understanding the significance of these colors is crucial for safe driving and responding appropriately to road signals.