What color often represents caution on traffic signs?

Yellow is widely recognized as the color that represents caution on traffic signs. It is used in various warning signs to alert drivers to potential hazards or changes in road conditions. This color is chosen for its high visibility and distinctiveness, allowing it to stand out against many backgrounds, both during the day and at night. The use of yellow on signs such as those indicating curve warnings, pedestrian crossings, or construction areas signifies that drivers should approach with care and be prepared to react to the situation ahead.

In contrast, other colors serve different purposes: red typically indicates danger or prohibitions (such as stop signs), green is used to signal go or favorable conditions (like directional signage), and blue conveys information related to services or guidance. Understanding these color conventions is essential for ensuring safety and compliance with road regulations.