Highway roadmarker with studded bottom

In a highway lane divider and roadmarker, adapted to be affixed to a pavement surface, said marker having a substantially planar base, the improvement of said base having a multiplicity of studs protruding therefrom in spaced relationship, said studs having substantially vertical sides, and bottom surfaces substantially parallel to said base, said studs protruding from said base from about 0.025 inch to about 0.1 inch, said studs spaced apart from each other a distance of from about 1/32 inch to about 1/4 inch, said studs dispersed substantially symmetrically over the area of said base, with the total exposed surface area of said studs, exclusive of their bottom surfaces, representing at least 30% of the total surface area represented by said base and the bottom surfaces of said studs.