What are temporary channelizing devices, and why are they used?

What are temporary channelizing devices, and why are they used?

• A. They are permanent barriers and cones used to close lanes
• B. They are reflective signs used at night
• C. They are speed bumps to slow traffic
• D. They are movable barriers and cones used to guide traffic through a work zone and protect workers

Answer: (D)

Temporary channelizing devices are movable barriers and cones used to guide traffic through a work zone and protect workers. Because they can be moved and reconfigured as work progresses, they create a clearly defined path for drivers, establish a safe buffer zone around the workers, and help control the flow of traffic. They are used specifically to delineate the work area and channel vehicles, not to close lanes permanently, slow traffic with speed bumps, or serve only as signs at night. By being highly visible—bright orange with reflective features—and easily repositioned, they allow crews to adapt to changing conditions while keeping both motorists and workers safer.

Temporary channelizing devices are movable barriers and cones used to guide traffic through a work zone and protect workers. Because they can be moved and reconfigured as work progresses, they create a clearly defined path for drivers, establish a safe buffer zone around the workers, and help control the flow of traffic. They are used specifically to delineate the work area and channel vehicles, not to close lanes permanently, slow traffic with speed bumps, or serve only as signs at night. By being highly visible—bright orange with reflective features—and easily repositioned, they allow crews to adapt to changing conditions while keeping both motorists and workers safer.