It's a fundamentally stupid idea. Passing solar light requires transparency. Transparent materials (glass, plastics) wear quickly and make terrible road surfac

It's a fundamentally stupid idea. Passing solar light requires transparency. Transparent materials (glass, plastics) wear quickly and make terrible road surfaces. Texturing the surface to make it a better road reduces transparency and increases wear even more. How about solar (covered) parking lots, solar roofs, etc. It makes far, far, far, far more sense.