[OSM-talk-be] historische kaarten als basis??

[Lennard]

Luc Van den Troost wrote:

> It would also *roughly* get us somewhere if all streets (or these near
> administrative borders) were tagged with postcode. 
> Something like borders or postcode should be needed for the decent use
> of OSM in navigation and lookups... This would give the borders at the
> most important points: where you can cross / see them. 

But how will you get the postcode, on a large scale? Is the Belgium 
postcode copyrighted, like it is in e.g. NL and the UK?

What I've thought about doing during my mappings in Oost-Vlaanderen is 
to make a note of every placename sign that delimits the municipality, 
and create an area with those, and the same with bebouwde kom signs. 
Then with every new road that's mapped that has such a sign, I would 
create a new node in the area, and place it correctly. That would create 
an area that's only an approximation of the real borders, but for 
navigation purposes, it would be enough. It could then be further 
refined using local knowledge.

I didn't get around to doing this just yet, because I was waiting for 
you guys to find a proper and legal source for all municipal borders. :) 
Should I just start doing it this way and of course tag it with 
note=Extrapolated; source=Survey ?

-- 
Lennard