What is the function of a "T traffic control device"?

The function of a "T traffic control device" primarily serves the purpose of channelizing or redirecting vehicle traffic away from construction areas. These devices are crucial in maintaining a safe environment for both drivers and construction workers. By effectively directing traffic, these devices help minimize conflicts between moving vehicles and construction activities, thus reducing the risk of accidents.

In work zones, where the flow of traffic can be disrupted, it's essential to guide vehicles safely and efficiently. A "T traffic control device" achieves this by creating clear pathways that lead drivers away from hazards, ensuring that they are aware of any changes in the typical flow of traffic due to construction efforts. This contributes to the overall safety and organization of the work zone, allowing for better management of traffic and workflow.

The other options, while relevant to traffic control, do not specifically describe the primary function of a "T traffic control device." Options focused on speed limits, pedestrian signals, or providing directions to detour routes address different aspects of traffic management but do not encapsulate the main purpose of channeling traffic in the context of construction zones.