Correct answer
A commercial advertising board.
A commercial advertising board. Retroreflective elements and luminous devices can be used to sign and delineate roadworks, helping warn of and mark the work area, subject to applicable specifications. Reflective elements must not be excluded as though they were not delineation, nor should a direction-of-view description be confused with a complete device classification.
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A commercial advertising board.
A retroreflective delineation element.
An authorised luminous delineation device.
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