Traffic controllers are professionals responsible for managing the flow of vehicles and pedestrians on roads and highways. They use signals, signs, and communication devices to ensure safety and efficiency in transportation. Their primary goal is to prevent accidents and reduce congestion by directing traffic at intersections, construction sites, and during special events. In addition to directing traffic, traffic controllers monitor road conditions and report any hazards or incidents to relevant authorities. They often work closely with law enforcement, emergency services, and transportation agencies to coordinate responses to accidents and ensure smooth traffic operations.