The ornamental design for a roadreflectorbase, as shown and described.
FIG. 1 is a right front side perspective view of a road reflector base showing my design;
FIG. 2 is a right rear side perspective view of the road reflector base as shown in FIG. 1;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof; and,
FIG. 9 is another right front side perspective view, shown in an environment of use.
The broken lines shown in FIGS. 1, 3 and 9 illustrate portions of the road reflector base. The broken lines in FIG. 9, showing the road reflector, illustrates environmental structure. The broken lines form no part of the claimed design.