A Flagman (or Flagger) is responsible for controlling traffic flow around construction sites, railways, or maintenance zones to ensure the safety of both workers and the public. They use signs, flags, and handheld devices to direct vehicles, communicate with crews, and manage traffic flow. Key requirements often include certification (like ATSSA), physical fitness, and high visibility. A comprehensive Flagger Job Description Template from Jobsoid is available to help in creating a detailed job posting.