The State allows utility works to use what type of control devices at work sites?

The correct answer highlights the significance of traffic control devices at work sites. Traffic control devices are essential tools that help manage vehicular and pedestrian movement around construction or utility work zones. Their primary function is to ensure safety by directing traffic and minimizing disruptions, allowing workers to perform their tasks while protecting both themselves and the public.

Traffic control devices encompass various signs, cones, barriers, and signals designed to alert and guide drivers and pedestrians through or around work areas. Proper use of these devices is critical for influencing driver behavior, ensuring that they slow down, remain aware of potential hazards, and navigate safely past work zones.

The other options, such as safety, warning, and control devices, while important in their own right, may not specifically address the management of traffic flow around work sites. For instance, safety devices often refer to personal protective equipment (PPE) or safety measures for workers, while warning devices might focus on conveying alerts about potential hazards without directly managing traffic itself. Control devices could refer to a broader category that may include elements of safety and warning, but traffic control devices specifically aim to regulate the movement of vehicles and pedestrians to safeguard all parties involved.