What does it mean if a road sign is yellow?

A yellow road sign serves as a warning indicator for drivers about potential hazards or changes in the road conditions that may require caution. This color is universally recognized for alerting drivers to situations that could pose a risk, such as curves, intersections, or animal crossings. By using yellow for warning signs, it enhances visibility and prompts drivers to be more vigilant, ensuring safety on the road.

While yellow may occasionally be seen in specific contexts like school zones or construction areas, it is not limited to those meanings alone. The primary and overarching significance of yellow in traffic signage is to signal alertness regarding potential dangers or conditions that necessitate careful driving. This foundational understanding of color coding in road signage is crucial for effective navigation and safety awareness.