What does a 'Stop' hand signal from a flagger mean?

• A. Traffic should slow down and proceed with caution
• B. Traffic must yield and merge
• C. Stop traffic completely, allowing other movements only when directed to proceed.
• D. Pedestrians should stop and wait

Answer: (C)

When a flagger shows the Stop hand signal, you must come to a complete stop and stay stopped until the flagger directs you to proceed. This is used to control traffic in work zones or at temporary intersections, and the flagger will indicate when it’s safe to move again—often by waving you forward or giving another signal. Stop behind the stop line or where you can clearly see the flagger, and do not advance until told to proceed. The other signals either mean slow down or yield/merge for different traffic situations, or relate to pedestrians, not to a full vehicle stop.