On Sat, Feb 3, 2018 at 4:18 PM, Dave F <davefoxfa...@btinternet.com> wrote: > I recently seen a variety of keys being given the value of 'unknown'. > I'm struggling to see its purpose. It confirms nothing & adds no value to > the database. Am I missing something?
You are right. It's interesting if you take a look at some values. maxspeed=unknown basically happens only in the Netherlands, from the same author (it seems) who is mapping/importing railway data. owner=UNKNOWN in California, USA, from an old buildings import place=unknown in Africa (due to this import https://wiki.openstreetmap.org/wiki/Import_Liberia_UNMIL_Places#Tagging_Plans) bench=unknown are mostly in Italy (from some possible bus stops/routes import) foot=unknown in England naptan:Landmark=Unknown also in England (both foot and naptan:Landmark look that are old data) wheelchair=unknown mostly in Iraq and Saudi Arabia (also from older imports) By taking a quick look at them, most seem to be from imports, created by the same mappers or old data. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging