That is a good idea.
I've also wondered why we don't use more cat's eyes here. They're about, but fewer and further between than I'd like.
And another thing, painting the curb at street corners would aid visibility of/at intersections. That fluoro paint would do very nicely, but even plain white would be better than dull grey. That would remove most of the need for street lights at small suburban intersections, though maybe not major arterial routes.
And while we're at it, why are street name signs at 2.5m above the ground (or thereabouts). When you get close enough to read them, your dipped headlights no longer illuminate them. I suppose everyine uses GPS now, anyway.
Anything that removes a need for street lights is good.