A traffic guard, "traffic controller", "flagman", or "flagger" is a person who directs traffic through a construction site or other temporary traffic control zone past an area using signs or flags. They are responsible for maintaining the safety and efficiency of traffic, as well as the safety of road workers, while allowing construction, accident recovery or other tasks to proceed. Traffic guards are commonly used to control traffic when two way roads are reduced to one lane, and traffic must alternate in direction. Their duties are to direct traffic to safer areas where construction, accidents, and severe traffic are taking placed. In addition they have to moderate the traffic density to not cause traffic jams. They guide motorists to follow the traffic laws; but may not be able to enforce the law.
