• Single flagger. Standing on the shoulder directly opposite the work area, the flagger directs traffic with a STOP/SLOW paddle.
• Two-flagger. In this case, flaggers are used on each end of the work zone to control traffic flow.
• Pilot car. This vehicle is used to guide a train of vehicles through a work area or detour. This method is best for routes where it’s unclear to the motorist where the work zone changes.
• Night flagging. Using a flashlight with a glowcone, reflective safety vest, and STOP/SLOW paddle, a flagger will direct traffic using the stop sign in the right hand and the glowcone in the left. The flagger will wave the flashlight in front of his or her body to stop vehicles.
• One-direction control. Here, the flagger will control just one direction of traffic. Traffic is stopped in the usual manner, but released once the work vehicles have finished blocking the lane. The flagger will use a STOP/SLOW paddle, and turn the STOP side away from the driver when traffic is released.
• Emergency flagging. Red flags can be used to control traffic until STOP/SLOW paddles can be obtained. To stop traffic, a flagger will stand on the shoulder of the road and extend the flag into the road, and raise the free hand to stop traffic. To release traffic, the flagger will drop the flag to the side and motion traffic to proceed with the free hand.
There are also a number of “do’s” and “don’ts” of safe flagging.