I wonder if pavement lights would be beneficial in other ways, e.g. for training guide dogs you could have the red light to indicate stop and the absence of a l

I wonder if pavement lights would be beneficial in other ways, e.g. for training guide dogs you could have the red light to indicate stop and the absence of a light for go ahead. I think it would be useful for self-driving wheelchairs to detect floor lighting strips, too. Why not then have smartphones detect the lights as you're walking and looking at your phone, then they can vibrate to let you know something in the real world needs your attention.