The ornamental design for road lighting luminaire, as shown and described.
1.1 is a perspective view showing of a road lighting luminaire showing our new design;
1.2 is a left side elevational view thereof;
1.3 is a right elevational view thereof;
1.4 is a back side elevational view thereof;
1.5 is a front side elevational view thereof;
1.6 is a top plan view thereof;
1.7 is a bottom plan view thereof.
The dash-dot-dash broken lines shown represent the bounds of the claim and forms no part thereof and the dashed broken lines shown therein illustrate portions of the luminaire that form no part of the claimed design.