What type of sign typically indicates a construction zone?

An orange diamond-shaped sign is specifically designed to indicate construction zones. The use of this color and shape alerts drivers to potential hazards or changes in road conditions due to construction activities. These signs are highly visible and are intended to capture attention, ensuring that drivers remain alert to workers and equipment in the area.

In contrast, red octagonal signs generally convey stop commands, which is unrelated to construction zones. Blue rectangular signs typically provide information about services or directions rather than indicating hazards. Green circular signs are usually used for informational purposes such as guiding traffic and indicating safe driving conditions, not for alerting drivers to imminent construction or road work zones. The distinct characteristics of the orange diamond-shaped sign make it essential for communicating construction-related warnings effectively.