Every time I visit America I&#x27;m surprised by how unwalkable most of metropolitan America is. I always wondered if roads are unwalkable because most Americans wouldn&#x27;t walk anyway or if Americans don&#x27;t walk, because roads are unwalkable.<p>Probably it has something to do with the long walking distances; even if the roads were walkable with proper sidewalks and pedestrian crossings installed, it would take half an hour just to walk to the nearest corner store.