OpenStreetMap

Trouble with the French land registry

Posted by Creator13 on 10 June 2017 in English (English)

While I was looking through the area I'm busy mapping, I noticed all kinds of weird errors in the French land registry. Now, we all know French bureaucracy is hell, but the folks who do the land registry are sometimes weird. Here are some examples:

This looks.. different...

Severe rotation problems. And doesn't that shape look off to you?

Looks larger in real life

Now this could have all kinds of reasons, but it's obvious their map is not frequently updated:

I present to you field 13 bis!

More numbered fields galore:

I'm wondering who even placed these markers. I've also come across an entire lake that was displaced by a good centimeter on my monitor compared to satellite imagery and GPS traces. But, we should be damned happy that they've provided this base map for us because we would never have been able to draw all these houses by ourself.

Location: Chemin du Souvenir, Fresse-sur-Moselle, Épinal, Vosges, Grand-Est, Metropolitan France, 88160, France

Comment from gileri on 11 June 2017 at 09:08

Maybe building errors come from the house owners not supplying corrects blueprints ?

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Comment from Carchiav on 11 June 2017 at 23:01

Satellite data does shift on the map sometimes, but that is weird

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