Le 19 juillet 2012 08:55, Stéphane Dewarrat s.dewarrat@cvra.ch a écrit :

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Dans le secteur suivant http://www.openstreetmap.org/?lat=46.5329146385193&lon=6.56392335891724&... Il y a passablement de données qui ont été maltraitées...

On 19.07.2012 10:20, Marc Mongenet wrote:

Il y a aussi des routes qui disparaissent dans les environs de Genève. Sauf erreur, ce sont les données non re-licencées qui sont supprimées par http://www.openstreetmap.org/user/OSMF%20Redaction%20Account

I'm following the changes in the area around Lausanne and found these change sets from the OSMF Redaction Account:

http://www.openstreetmap.org/browse/changeset/12251079 http://www.openstreetmap.org/browse/changeset/12251259 http://www.openstreetmap.org/browse/changeset/12251473 http://www.openstreetmap.org/browse/changeset/12251732

Three of them include Ecublens, but since Ecublens is at the limit of the zone I follow, there might be yet other change sets affecting it.

But even having these change sets, it's difficult to know the information (relation, way, node or tag) that was deleted (or changed), since it's hidden in the history:

http://www.openstreetmap.org/redactions/1

Following the members of a changed route relation with new gaps in the route, I came across a copped up street with gaps and missing tags. And these were not the kind of errors that would show up on OSMI, Keepright, or OsmOse. Hadn't I known the route (and the place) before, there wouldn't have been anything suspicious about it.

So short of comparing your local knowledge and the allowed data sources with every single way and node (present or missing), I guess the only way to find out what was deleted would be to go back and look up the affected relations, ways, and nodes in an old planet file just before the redaction process took place. Of course not to restore them, that would be against the rules, but just to know what the heck needs to be repaired or redone.

I'm not convinced of the necessity or benefits of this license change to ODbL, but at the time I joined OSM, there wasn't any choice for me anyway.

Thorsten (Shernott)