Abstract: A reflective pavement marker includes a hollow, hermetically sealed base having a flexible top wall defining at least one downward recess. The base is installed in an opening in a roadway, with the top wall flush with the surface. In each recess there is provided a reflector unit which includes an upper portion projecting upwardly above the top of the base, and converging upwardly so that impact from a moving object will cause a camming action that urges the reflector unit downwardly. The reflector unit includes at least one light-reflective component supported and protected by the upper portion.

Abstract: A marker for concrete safety barriers incorporates a hollow, cylindrical body which is bifurcated from one end to define spaced-apart diverging legs, and an end wall on the other end. Inner walls close the legs and allow them to define pockets which can receive granular material. A reflective sheet material can be affixed to at least part of the exterior. All parts are made of deformable materials such as linear, low-density polyethylene.

Abstract: There is provided a sign which includes a plurality of panel members hinged together with split collars passing through slots in the panel members. Preferably the collars are of clear plastic. In one embodiment, each collar has an axial slit, while in a second embodiment each collar has a skewed slit in order to reduce the risk of disengagement from a panel.