US Patent 6951434 Traffic control device

A traffic control device is provided including at least one barrier unit comprising a top wall formed with at least two openings, a bottom wall having post boots which align with the openings in the top wall, opposed end walls, and, opposed side walls interconnected to form a hollow interior. A post is releasably inserted into the hollow interior of the barrier unit through each opening in its top wall so that an inner portion of each post is received within an aligning post boot on the bottom wall. An outer portion of the posts protrude from the top wall of the barrier unit and support horizontally oriented pannel, the uppermost one of which mounts a sign.