Which term is one of the five areas of a work zone?

• A. Detour corridor
• B. Advanced warning area
• C. Safety berm
• D. Buffer zone

Answer: (B)

In work zone safety, traffic control is organized into distinct zones so drivers get clear, early guidance before reaching the actual work area. The Advanced Warning Area is one of these zones and sits upstream of the work zone to alert drivers that they are approaching construction. It uses signs, markings, and sometimes cones to prompt drivers to slow down and be prepared to adjust lanes, creating a safer transition into the work area. Detour corridor describes an alternate route rather than a zone inside the work zone itself; a safety berm is a physical barrier rather than a traffic-control zone; and while a buffer zone is another recognized zone, the option that best matches the five-area framework and specifically identifies an early-warning role is the Advanced Warning Area.