They really aren't. Sufficiently slow traffic (or none at all) will render streets walkable. Prioritizing pedestrian use over vehicle use is what creates walkab

They really aren't. Sufficiently slow traffic (or none at all) will render streets walkable. Prioritizing pedestrian use over vehicle use is what creates walkability. In the US you tend to find this in places that were built before cars but with sufficiently high property values that rearranging the buildings to widen the streets doesn't make sense. See parts of Boston for example. The places that are both old and wealthy tend to have streets that are pretty much local access only through size alone.