I'll have to admit that I haven't been surveying for *missing* numbers - I have been only collecting the beginning and end of each group. A search by address number would yield quite an accurate location. But the reverse case, using my data in the OSM database as a postal mailing address validator would fail. In my mind, having a navigable address would be more useful than nothing, (or in the US, an obfuscated Tiger address).
>Actually, I'd say the interpolation is *better* than mapping each >individual store, because the store numbers are going to change, and >14409 might be added, because 14407 splits into two, and if someone >wants driving directions to 14409 they ought to be given an >approximate answer, not told "address does not exist". I would add to this sites with new construction - I can generally tell the entire area of a new subdivision addressing scheme when it is partly complete. I can create an address interpolation way that will not be 100% accurate because it includes empty, future houses, as well as lots that will never contain a house for a number of reasons, however it is useful for navigation long before the commercial companies include it. The existence of an address interpolation way in my mind was a marker that a final survey is needed before creating individual house number nodes. There are plans in the US to import Tiger address interpolation information - which is intentionally obfuscated for privacy reasons by law. Tobias mentioned a possible tag interpolation:complete=yes to represent fully accurate address interpolation, which sounds like a simple solution. If it is necessary to tag estimated address interpolation differently, it would be good to know before the Tiger address interpolation import begins. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging