Many mobility devices can move at speeds higher than pedestrian speed, but they can only effectively do that on a smooth surface that’s designed for it. (As sho

Many mobility devices can move at speeds higher than pedestrian speed, but they can only effectively do that on a smooth surface that’s designed for it. (As shown in both of those videos.) This is especially beneficial for people who can’t drive. But as to your question about ruined pavement unfit for a mobility device moving at pedestrian speed, that describes a nontrivial portion of the sidewalks near my apartment in Philly. (And that’s if you can even navigate around all the parked cars blocking the crosswalks and curb cuts.)