In which scenarios should flagging be used for traffic control?

• A. Only during daylight hours.
• B. In emergency situations, at intersections, or when working on the centerline with opposing traffic.
• C. Whenever you feel unsafe.
• D. Only in construction zones.

Answer: (B)

Flagging is used to temporarily direct traffic when normal controls aren’t enough to keep workers and motorists safe. The scenarios that call for flagging include emergencies, at intersections, or when workers are on or near the centerline with opposing traffic. In an emergency, flaggers help reroute vehicles to protect people and responders. At intersections, a flagger can coordinate movements when signals aren’t functioning or when work blocks standard turning patterns. When work is right on or near the centerline with opposing traffic, flagging creates a safe path around the work area and prevents head-on conflicts by directing traffic as needed. Daylight hours, personal feelings of safety, or only working in construction zones don’t alone determine the need for flagging.