[OSM-dev] Nominatim geocoding for Japanese address

Satoshi IIDA nyampire at gmail.com
Tue Apr 8 15:52:49 UTC 2014

> I am. :)
Wow! :)

> Japanese address system
I made Japanese address structure for OSM, last year.
And got consensus between Japanese mappers. also reported in Tagging ML.

Documentation is written in Japanese, but certainly need more easy

Block structure detail (too complex, sorry)

Problem is the absence of address data on Japanese area.
As my early mail, most of admin boundary relation is broken.

But if we could do so detailed search on OSM, I'm very happy to encourage
to collect address data on Japan :)

Here is an early development that JOSM plugin for fill jp address from ZIP

2014-04-08 16:06 GMT+09:00 Sarah Hoffmann <lonvia at denofr.de>:

> Hi,
> On Mon, Apr 07, 2014 at 02:03:19PM +0900, Satoshi IIDA wrote:
> > Although I'm not a Nominatim guy :)
> I am. :) I'll have a look at the data and try to answer the
> trac ticket later. Just some quick response about addresses here.
> > 3. place name? address?
> > Your dataset seems about "place/block name" rather than "address".
> >
> > As you know, Japanese addressing is "city block" based. Not "street"
> based.
> > So perhaps it would need some enhancement on Nominatim.
> > (from my memory, block based search is already implemented.)
> Nominatim is now able to handle 'street-less' addresses but I'm not sure
> that this covers addresses in Japan adequately. There is no problem to
> extend Nominatim with a specific block-based addressing schema.
> The main isssue is that it is not quite clear if there ever has been a
> consensus about the tagging of block-based addresses. As all the developers
> of Nominatim are based in countries with street-based addressing schemas,
> we really need to rely on you there.
> So it would be great if you could discuss in your community the tagging
> again and find a consensus if not yet has been reached, document that
> on a wiki-page and file a trac ticket for Nominatim with a link to that
> wiki page and some example areas where the schema is already being used.
> Sarah

Satoshi IIDA
mail: nyampire at gmail.com
twitter: @nyampire
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