A road cone, also known as a traffic cone, is a conical-shaped device made of durable plastic or rubber that is used to redirect or warn drivers and pedestrians of potential hazards in roadway construction zones or other areas where traffic needs to be controlled. Road cones are available in various sizes and colors, with larger sizes being used for highway construction and smaller sizes used for pedestrian areas or indoor use. They are also available with reflective material or lighting to increase visibility in low light or nighttime conditions. Road cones are an important tool for maintaining safety in work zones and are used by road construction crews, emergency responders, and others who need to redirect or block traffic.