Abstract: The invention is directed toward a card display holder for displaying and storing one or more placards on the interior side of a vehicle windshield. The card display holder includes a left side wall and a corresponding right side wall where the left side wall is essentially parallel to the right side wall. Positioned between both side walls is a back wall. Also, the card display holder has a front wall that includes a left portion and a corresponding right portion, the left portion being essentially parallel to the right portion. A bottom wall connects the front wall to the back wall creating a surface area sufficient for one or more placards to rest within the card display holder. A aperture can be positioned within the back wall. The card display holder is preferably of unibody in construction and manufactured from a plastic or composite.

Abstract: Apparatus for controlling the direction of traffic flow wherein a plurality of rotationally mounted levers have a free end extending upwardly from the road surface. The levers are provided with removable spikes which rotate therewith to damage tires when the levers are rotated in one direction. The free end of each lever is provided with a rotationally mounted low friction contact member which contacts the adjacent surface of the tire and moves along the surface thereof. Envelopment of the free end of the lever by the tire and the coerced rotation thereof in the wrong direction do not occur. As a result, the failure of the corresponding spike to damage a tire when the vehicle is moving in the wrong direction is thereby avoided.