Have you seen the story of the university in Utah that decided to create lanes on their staircases, in order to "add functionality" to the place?
I'm envisioning such lanes installed in most public places. I've already established myself as a bit of a curmudgeon when people wander into the wrong lanes on walking/running tracks. Perhaps, then, the problem is me: I need to learn to slow down and smell the roses. Okay, I can accept that. But that doesn't excuse the texters who get in others' ways: they need to put down the phone and smell the roses.