Am 20.01.2012 23:05, schrieb Colin Smale:

How about using building=entrance if available instead of the centroid? 
That's also more likely to be closer to a street and less ambiguous as 
to which street. The centroid of a corner building will be closer to the 
long side, irrespective of where the entrance is.

Yes, this feature is already implemented in add-pois-to-area.

First the algorithm should take information of Karlsruhe-Schema. If there is only an adressinterpolation, then there should be a linear interpolation between the given adressinformation.
If this doesn't contains informations about streets, there should be a "bruteforce" to find next street. Information about country and city shouldn't be a problem after LocationHook.

Henning