Toolbox Talk – Flagging Hand Signals

Flagging is a critical part of maintaining safety in temporary work zones, ensuring smooth traffic flow while protecting both workers and road users. This guide highlights the essentials of flagging, including proper hand signals, safety protocols, and best practices.

Flagging Tools: The Red Flag

• Flag Specifications: Use a flag that is at least 60 cm square, made of durable red material, and securely attached to a staff at least 90 cm long.
• Flagger Stations: Position flagger stations far enough ahead of the work zone to give drivers enough time to stop. Consider factors like traffic speed, road surface, and weather conditions.

Proper PPE for Flaggers

When working in traffic, always wear:

• A reflective high-visibility vest.
• A hard hat.
• Eye protection (when necessary).
• Appropriate protective clothing and footwear.

Key Flagging Functions

Flaggers perform three main tasks:

1. Stopping Traffic: Safely halting oncoming vehicles.
2. Releasing Traffic: Allowing stopped vehicles to proceed.
3. Slowing Traffic: Reducing vehicle speed through the work zone.

How to Use a Red Flag

To Stop Traffic

1. Extend the flag fully — it should never be rolled or crumpled.
2. Stand in a safe position, such as the shoulder or barricaded lane.
3. Hold the flag out at shoulder level, into the edge of the traffic lane.
4. Raise your free hand, palm facing the driver, and signal the vehicle to stop.
5. At night, use a flashlight, waving it back and forth in front of you.
6. Once the first vehicle stops, ensure others also stop, and move to a safe position.
7. Always check for vehicles from behind.

Important: Provide ample warning to motorists. For example, at 50 km/h, a vehicle may need 65 meters to stop, and at 100 km/h, it may require up to 210 meters.

To Let Traffic Proceed

1. Move to the right side of the lane.
2. Stand parallel to traffic, facing the passenger side of the car.
3. Lower the flag to your side and motion for traffic to proceed using slow, deliberate arm movements.

To Alert and Slow Traffic

1. Stand on the shoulder or in a barricaded area, facing traffic.
2. Hold the flag horizontally at shoulder level.
3. Slowly wave the flag in a sweeping motion. Avoid sudden or erratic movements.

Never stand in the path of oncoming vehicles!

Flagging Best Practices

1. Always stay alert and aware of your surroundings.
2. Use clear, deliberate hand signals.
3. Stand outside the traffic path and remain visible.
4. Be courteous to motorists and prepared to explain the day’s work.
5. Adapt to changing weather conditions.
6. Assume drivers may not stop; stay vigilant.

Remember: Effective flagging ensures the safety of workers and the traveling public. A calm, professional approach is key to managing traffic efficiently in any work zone.

Download the full Toolbox Talk document on Flagging Hand Signals below:

Download