[Tagging] riverbanks wiki (was [OSM-dev] Coastline, lakes, rivers)

Pieren pieren3 at gmail.com
Tue Apr 16 14:46:19 UTC 2013

On Tue, Apr 16, 2013 at 4:01 PM, Tobias Knerr <osm at tobias-knerr.de> wrote:

> On 16.04.2013 11:53, Pieren wrote:
> > I'm not sure that the "New tagging" of riverbanks has been really
> > adopted, excepted by the 16 who approved it on the wiki
> Just for clarity: A redefinition of riverbanks has *not* been approved
> by wiki vote.
I forward this discussion on the tagging list.
You say that "a redefinition of riverbanks has not been approved" but the
current wiki page says the opposite:


== Common tagging ==
The area of the river should be marked by a closed area drawn along the

== New tagging ==
A new tagging schema has been approved...
... The ways around a river can still be tagged as waterway=riverbank (as
they still are riverbanks), although this isn't needed, and riverbanks
aren't treated as areas any more...

The current status of this wiki page is very bad and confusing. First, we
explain two methods and we don't explain why. Second, the new tagging is
not adopted by editors presets since a year. Third, the section titled
"unification of the island case" is showing a multipolygon relation with an
outer ring unclosed (you have gaps between way1, way2 and way5, way6) !
Please, clarify the riverbanks taggins either by:
- deprecate the old tagging, at least clearly in the wiki !
- or withdraw the "new tagging schema" never adopted for riverbanks
excepted by the 16 voters and some imports (2500 "water=river" after two
years of official "approval" !)
- say clearly if riverbanks have to be a closed polygon (or multipolygon
relation) or not !
- fix the unclosed outer ring in multipolygon relation. It's something that
can happen in real data (and fixed by data consumers) but not something we
can recommand in the reference documentation.

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