[OSM-talk-be] ardenne - way 890280505

[Pierre Parmentier]

Hello,

I was recently intrigued by this way
<https://www.openstreetmap.org/way/890280505#map=8/50.022/6.059> whose name
is *Ardenne/Ardennes/Ardennen*. I think that this type of data has no place
in OpenStreetMap today.

Why not? First some references ...

   - (https://fr.wikipedia.org/wiki/Ardenne)
   - (https://fr.wikipedia.org/wiki/Ardenne#Communes) Including a list of
   communes located in Belgium, the Grand Duchy of Luxembourg and France].
   - (https://wiki.openstreetmap.org/wiki/Tag:natural%3Dmountain_range)
   - (https://fr.wikipedia.org/wiki/Cha%C3%AEne_de_montagnes)
   - (https://en.wikipedia.org/wiki/List_of_mountain_ranges#Europe) It does
   not appear that the Ardennes is considered a mountain range.
   - In *Denis, Jacques. Geography of Belgium. Brussels: Crédit communal de
   Belgique, 1992* there is a map (p. 137) that shows the major
   morphological units of Belgium. The Northern Ardennes, the Central
   Ardennes and the Southern Ardennes are among 19 other units.

It is clear from all this that the Ardenne is a geological concept. The
data does not belong to OpenStreetMap at this stage. Tags relating to
geology are few in number and generally very precisely located. (
https://wiki.openstreetmap.org/wiki/Key:geological). This is not the case
with the way 890280505.

OK, there are several types of boundaries in OSM. But these are - generally
- official and public data which are not contestable. The boundaries of the
Ardennes are too imprecise and hardly verifiable in the field by an
ordinary contributor. Who will arbitrate on possible boundary changes?

The route created by Florimondable may be well-intentioned. But it seems to
me to be unmanageable in OSM.

But that's just my point of view.

I contacted both the first (Florimondable) and the last (Stereo) publisher.

I asked Florimondable the reason of this way. He answered 'J*’ai ajouté le
massif montagneux des Ardennes parce qu’il… existe. Pour sa géométrie je ne
suis pas du tout un spécialiste de ce massif, j’ai donc fait au mieux de
mes connaissances.*' [I added the Ardennes mountain range because it...
exists. For its geometry I am not at all a specialist of this massif, so I
did the best of my knowledge].

For Stereo '*Si Florimondable n’a pas vraiment l’utilité du polygone, pas
d’objection à ce qu’il disparaisse. Je ne connais malheureusement pas de
rendu qui utilise ce genre de trucs.' *[If Florimondable doesn't really
have a use for the polygon, no objection to it disappearing. Unfortunately
I don't know of any rendering that uses this kind of stuff.].

What do you think of this? Should we keep these types of data in OSM? The
French and the German mappers should be involved.

Pierre aka foxandpotatoes
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