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 Discussion Is the flagger trained and certified? Set-Up Pre-plan the entire traffic control operation. ...