What color indicates a construction zone when approaching an orange sign?

When you see an orange sign while driving, it indicates that you are approaching a construction zone. The color orange is universally recognized in traffic control for warning drivers about construction and maintenance work. This color serves as a signal to proceed with caution, as there may be changes in traffic patterns, workers present, or equipment in the area. Each of the other colors has distinct meanings: green is typically used for guide signs (directions and distances), red signifies stop or prohibition (such as stop signs), and blue is often used for informational signs regarding services available on the road, like rest areas or hospitals. Yellow indicates general caution or warnings, but it is not specifically used for construction zones. Thus, orange is the correct color to watch for to ensure safety in these areas.