[Tagging] Grouping buildings together using relations

Mateusz Konieczny matkoniecz at tutanota.com
Tue Jan 5 11:29:03 UTC 2021

Jan 5, 2021, 02:55 by minh at nguyen.cincinnati.oh.us:

> Vào lúc 16:12 2021-01-04, Eric H. Christensen via Tagging đã viết:
>> After reviewing the wiki page[0] regarding the types of relations, I'm not seeing a solution for what I'm trying to do.
>> In an effort to make it easier to maintain several libraries that are all in the same system and share much of the same information (like opening_hours), I want to group these together in a relation so when these commonalities change it makes it much easier update and keeps the entire library system up to date.
>> Is there an appropriate way to do this in a relation, today?
> A relation isn't the most appropriate tool for the job [1], though some mappers have used network relations to similar effect. [2] If the library system isn't too large, you might find it more efficient to use the find feature in JOSM or an Overpass turbo + iD workflow to streamline the process of updating the tags on individual amenity=library features.
> A more forward-looking alternative would be to create a Wikidata item representing the library system if it doesn't already exist and add an opening time statement to it. [3] Then you can tag each amenity=library feature in OSM with operator:wikidata=*. At the moment, it's unlikely that any OSM data consumer is pulling opening times from Wikidata for practical use, but this is an option for satisfying an immediate urge to record the information somewhere.
> [1] https://wiki.openstreetmap.org/wiki/Relations_are_not_categories
> [2] https://wiki.openstreetmap.org/wiki/Relation:network
> [3] > https://www.wikidata.org/wiki/Property:P8626
+1 - we do not need more relations, and operator:wikidata=* (or operator:wikipedia=*)
may be a good way to be able to download them together
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