What shape are construction zone signs generally?

Construction zone signs are designed to alert drivers to changes in road conditions, including areas where construction is occurring. These signs are typically diamond-shaped or rectangular and utilize an orange background with black lettering or symbols. The orange color is used universally for construction and maintenance warnings, making it easy for drivers to recognize and react appropriately.

In contrast, other shapes and colors mentioned in the choices serve different purposes. For example, round or triangular signs are often used for yield or warning signs, and blue signifies informational or service signs. Red and yellow colors might indicate stop or caution but are not associated with construction. Similarly, green generally denotes directional signs, not construction zones. Understanding these specifications helps ensure that drivers can navigate safely and efficiently through construction areas, minimizing hazards.