[Tagging] Grouping buildings together using relations

Volker Schmidt voschix at gmail.com
Tue Jan 5 16:24:57 UTC 2021

If this is one library distributed over several buildings then the site
relation is a good tool to tag it in OSM and for data users to use the
This is a small example. The big ones are the typical European non-campus
universities. The local university in Padova is distributed over some 50
buildings in the city, each housing often bits of several different
sections/institutes/departments. This is in my view a candidate for a site
(but it is not tagged as such at present with the effect that for an OSM
data user there are 44 "universities" in town)

On Tue, 5 Jan 2021 at 12:34, Mateusz Konieczny via Tagging <
tagging at openstreetmap.org> wrote:

> 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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