Abstract: Disclosed is a protector for a retro-reflective road marker mounted in a road that includes a top portion that has a generally flat region where the retro-reflective road marker can be mounted and a bottom portion oppositely disposed from the top portion. The protector is made from a moldable polymer and the top portion is operable to protect the road reflector from motor vehicle tires passing thereover and the bottom portion of the protector has a bottom arcuate surface that defines an arc extending from the top portion.

Abstract: A reflective pavement marker shell is provided having a top wall, a side wall extending from an end of the top wall, and reflective end walls extending from an other end of said top wall, wherein the shell forms an interior cavity. The shell is formed from a polyacrylate or a polycarbonate having a tensile strength of more than 10,000 psi and a flexural modulus of more than 450,000 psi. The shell also includes a reflective portion integral with the reflective end wall, a reflective coating covering the reflective portion and a bonding coating covering at least the reflective portion. The shell is integrated into a reflective pavement marker with inclusion of a filler material within the interior cavity of the shell.

Abstract: An improved road marker with a one piece shell and recesses containing elongated members with an undercut relief is provided. The road marker contains a retroreflective lens and a bottom surface with a plurality of the recesses protruding into the shell. The cross section of the recesses can be in the shape of a circle, ellipse, triangle or any shaped polygon, and said cross section can vary as a function of the depth of the recess into the shell and the location of said recess on the bottom surface. The cross section of the elongated member in an axial direction can be in the shape of a circle, ellipse, triangle or any shaped polygon. The undercut relief can be in the form of threads, ridges or any type of indentation into the elongated member that provides a rough surface.

Abstract: An improved road marker with a one piece shell and recesses containing elongated members with an undercut relief is provided. The road marker contains a retroreflective lens and a bottom surface with a plurality of the recesses protruding into the shell. The cross section of the recesses can be in the shape of a circle, ellipse, triangle or any shaped polygon, and said cross section can vary as a function of the depth of the recess into the shell and the location of said recess on the bottom surface. The cross section of the elongated member in an axial direction can be in the shape of a circle, ellipse, triangle or any shaped polygon. The undercut relief can be in the form of threads, ridges or any type of indentation into the elongated member that provides a rough surface.