OpenStreetMap
Cleaning up admins
Posted by amapanda ᚛ᚐᚋᚐᚅᚇᚐ᚜ 🏳️⚧️ on 17 October 2014 in English. Last updated on 8 January 2017.I’m looking through the OSM database and finding a lot of weird quirks in the admin_hierachy. There are lots of things that are tagged admin_level=2 that I don’t think are quite right. If you get a message from me, it might be because of that.
Discussion
Comment from EdLoach on 17 October 2014 at 12:48
Good luck with tidying. If you start considering whether the correct admin level has been added to ways that are in multiple relations, I have a report for the British Isles - the errors you can perhaps ignore as I think they are where political boundary relations have been added as subareas of administrative boundary relations.
Also ignore the “unnecessary tag” bit - it seems Mapnik still needs the highest level admin value on the ways for rendering if I’ve understood this discussion correctly.
Comment from amapanda ᚛ᚐᚋᚐᚅᚇᚐ᚜ 🏳️⚧️ on 17 October 2014 at 12:51
Cool. I’m helping to map and process some of the Irish historic boundaries at townlands.ie
Comment from stephan75 on 17 October 2014 at 18:47
Hello rorym,
please be aware that administartive boundary relations are under a permanent review process by some OSM experts.
See for example osm.wiki/User:Wambacher (scroll down there)
and try his tool https://osm.wno-edv-service.de/boundaries/
If you have issues with some borders, why not starting a thread at the OSM forum?
http://forum.openstreetmap.org
Stephan
Comment from amapanda ᚛ᚐᚋᚐᚅᚇᚐ᚜ 🏳️⚧️ on 18 October 2014 at 14:22
Hi @stephan75, Thanks for your concern. Perhaps I wasn’t clear enough, but I’m only looking at admin_level=2’s, i.e. countries. There are a few badly tagged ways/relations which aren’t really admin_level=2 (e.g. osm.org/way/259259040 ).
ATM I’m just messaging the people who mapped those things.