traffic control

Traffic Control

Traffic Control

Almost every job at one time or another needs traffic control. This often involves the use of flaggers and signs.

It should be remembered that the intent of traffic control procedures is to prevent a tie-up in the operation of the construction project and to allow the general public to move as efficiently as possible around the construction site. It is important that all flagger remember that they represent the company and will come into contact with many people while flagging. Therefore be courteous at all times.

Guide for Discussiontraffic control

Is the flagger trained and certified?


  • Pre-plan the entire traffic control operation.
  • Have the flagger knowledgeable of all construction operations to occur.
  • Clearly mark all changes or detours.
  • Enforce all changes and detours.

Flagging Operations

  • Be sure the traffic can see you.
  • Wear a Class II (at a minimum) safety vest.
  • Have good communications with other flagger (radio or visual signals)
  • Use STOP and SLOW paddles of proper size.
  • Wear suitable shoes.
  • Be dressed neatly (to reflect a good public image)
  • Wear a hard hat
  • Never turn your back on the traffic
  • Plan an escape route
  • Always be courteous but firm.

Additional Discussion Notes:

IDENTIFY CERTIFIED AND TRAINED COMPANY FLAGGERS (Flaggers may received MDOT certification through the MDOT Local Roads program.

Remember: The flagger has a responsibility to protect the general public as well as those at work on the construction site. Pay attention to what is going on around you.