On 14/10/19 17:58, Joseph Eisenberg wrote:
It is proposed to remove the rendering of waterway=wadi from
Openstreetmap-carto, the style used in the "Standard" layer on
openstreetmap.org - see
https://github.com/gravitystorm/openstreetmap-carto/pull/3931
As discussed back in January 2015, the tag waterway=wadi is ambiguous,
because it is was used both for dry valleys and for intermittent
waterways. See
https://lists.openstreetmap.org/pipermail/tagging/2015-January/thread.html
http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dwadi has been listed
as deprecated since then.It is recommended to use
waterway=river/waterway=stream + intermittent=yes for waterways,
natural=valley for valleys.
Since that time the usage of waterway=wadi has dropped from 18,000 to
6,000, while intermittent=yes + waterway has increased from less than
800k to over 2 million now.
Intermittent is being used with the key seasonal=*.
I think you may find the increase in use of intermittent may be from this dual
tagging.
I could say tagging for the render.
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