While I was strolling across a race track the other day under intense sunlight, I found myself pondering over an interesting little problem and I would like to hear opinion about it. Cutting to the chase: would I be hit by more reflected sunlight if I walked on the yellow, more reflective track, but at the same time having two blue, less reflective tracks on the sides, as in Fig. 1, or if I walked on the blue track, with two yellow tracks on the side, as in Fig. 2? Is it just a matter of calculating the areas in the image? What do you think?