what is an 'address interpolation'?
Way: 30752902 | OpenStreetMap
https://www.openstreetmap.org/way/30752902
OpenStreetMap is a map of the world, created by people like you and free to use under an open license.
on a block of downtown san francisco, there are two block-long lines labelled 'address interpolation'. there aren't many nodes along this block, but the ones that exist mostly have explicit addresses assigned.
these were created 14 years ago (potlatch 0.10f). what do they do, are they valuable to renderers or to the map itself?