Reflective pavement marker and method of making

A reflective roadway marker having a monolithically formed one piece hollowed body, said one piece body comprises:

• two arcuate sides, a top portion, a sealed planar base surface with textured discontinuous grooves and two inclined planar faces, each of said planar faces having a planar recessed portion;
• means for integrally forming multiple of hollow cavities within said one piece body, said hollow cavity means having open ends at the planar recessed portion of said inclined planar faces, said hollow cavity means being formed either within one row or two rows, said hollow cavity means separated from each other by partition and load carrying walls, said hollow cavity means each having a centerline parallel to said planar base surface;
• means for integrally forming plurality of wedge shaped top surfaces at the end of said load carrying partition walls within said planar recessed portions of said inclined planar faces, said wedge means being adopted to maximize the air gap areas at the open ends of said hollow cavity means;
• and
• reflective plate means for attachment to said wedge means and the periphery of said planar recessed portions of said inclined planar faces, said plate means having inside surface with multiple of cube-corner reflective elements and planar outside surface, said inside surface welded to said wedge means thereby fusing portion of the cube corner reflective elements to said wedge means, whereby defining cell like areas within said inside surface, each cell with multiple of the remaining cube corner reflective elements.