[OSM-dev] Massive building import - thoughts

Patrick Kilian osm at petschge.de
Sat Feb 7 10:02:22 GMT 2009


Hi,

> In france, next to the cadastre's agreement of using their data for OSM, we 
> might soon be able to import something like 60% of France's builings.
Nice that you might get that data, ...

> The remaining question is : should we do it ?
> 
> - quality concerns/tests are on their way
> - semi-automated imports are being developped to spread the load in time (and 
> get a quality idea of the data we have)
but how are you going to deal with houses that are already in the OSM
database?

> My RFC on this dev list is, what negativ inpact could that bring to OSM db 
> servers ? on rendering servers too ?
> 
> Values expectation are roughly :
> - 10,000,000 builings (from a single house to church to towers to many others)
> - composed roughly from 4 to ~50 nodes
With those number manual checking is not really feasible.



Patrick "Petschge" Kilian




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