[OSM-ja] FW: [OSM-talk] www.openaddresses.org BETA launched

[Emilie Laffray]

2010/4/2 Daniel Kastl <daniel ＠ georepublic.de>

> Hi Emilie,
>
> I followed a discussion about postal code attribution on the talk list and
> it made me think about how to represent a Japanese address.
>
> At first, mapping in Japan is quite convenient for lazy people like me, who
> don't write down street names while collecting GPS data, because most roads
> don't have a name anyway. But then, if you are looking for an address with a
> geocoder for example, what do you search for? If you have street names
> already the only thing you might be missing is the house number. But at
> least you know where the street is located.
>
> Street addresses work very well with OSM, because it's all about the
> streets, right? Now there is this Japanese address data I was talking about,
> but it doesn't break down to the house level, so it's missing the "house
> numbers". It gives a point as a geo reference, but actually it should be a
> block or area. Well, these blocks don't exist in OSM, because we're mostly
> mapping roads ;-)
> This article describes the problem well: http://sivers.org/jadr
>
> I think there are already a couple of features in OSM, that are available
> as a point object, but should be a polygon object. For example city
> "points". OK, for rendering it's nice to have a point with a label, but
> that's not really GIS.
> Japanese addresses (especially district and block level) should be polygons
> in my opinion as well as administrative boundaries and postal code areas
> are.
>

I agree. I will answer more tomorrow just came back from holiday.

Emilie Laffray
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