[OSM-talk] Adding Wikidata tags to 70k items automatically

Janko Mihelić janjko at gmail.com
Thu Aug 28 13:18:20 UTC 2014


2014-08-28 14:41 GMT+02:00 Edward Betts <edward at 4angle.com>:

>
> For now I've side stepped this problem. If you look at an institution like
> a
> hospital, university or school you'll often find multiple buildings, some
> might include a name and be tagged amenity=hospital/university/school. If
> my
> code spots two or more nearby items with the correct tags and matching
> names
> it skips them, so I don't have to deal with multiple OSM items having the
> same
> wikidata tag.
>

Most of this cases are probably just bad tagging, but it's possible some of
them indeed are multiple objects described in an article. It would be
useful to make a KeepRight style map with such problematic objects.


> I can also detect if there are two nearby items with the same name but
> different tagging. I found an article on Wikipedia that was in the
> categories
> for bridge and monument. In OSM we have a 'way' to represent the bridge
> and a
> 'node' in the middle of the bridge for the monument. I skip these as well,
> there are just over 200 of them.
>

Bridges are bit of a grey area, is a highway with bridge=yes really a
bridge, or is it a highway which has a property of being on a bridge? I
think we should map these notable bridges as an area with man_made=bridge
and put the tag on that.
The very first example of a bridge on your list is already problematic:

http://www.openstreetmap.org/way/5620489

Janko
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk/attachments/20140828/aa5425c2/attachment.html>


More information about the talk mailing list