Roads are generally marked, and often have elements embedded in the surface (e.g. [1]). As self-driving cars become more prevalent, I don't see why you wouldn't adjust new/replaced markings to be something more readable by those vehicles. It obviously can't be the only signal used (because it's infeasible to change everything immediately, not all roads are marked, and wear/damage may make them unusable) but it may help improve reliability/accuracy.

[1] https://en.wikipedia.org/wiki/Cat%27s_eye_(road)