[OSM-talk] Post code areas

[John F. Eldredge]

In the USA, also, postal codes in low-population areas tend to be much larger than those in densely-populated areas.  In addition, we have both five-digit postal codes and nine-digit postal codes; the latter divide up the five-digit zones into sub-zones, typically containing only a few buildings each.

-- 
John F. Eldredge -- john at jfeldredge.com
"Reserve your right to think, for even to think wrongly is better than not to think at all." -- Hypatia of Alexandria

-----Original Message-----
From: Frederik Ramm <frederik at remote.org>
Date: Thu, 01 Apr 2010 19:31:41 
To: Brian Quinion<openstreetmap at brian.quinion.co.uk>
Cc: OSM<talk at openstreetmap.org>
Subject: Re: [OSM-talk] Post code areas

Hi,

Brian Quinion wrote:
> boundary=street_postal_code | district_postal_code | city_postal_code
> street_postal_code = 425253

I'm having difficulties in grasping this concept. In Germany we have 
5-digit post codes, and the associated regions vary in size depending on 
how densely populated an area is. So a five-digit code might sometimes 
encompass a whole region, sometimes a town, sometimes just a quarter. 
That doesn't technically make them different kinds of post codes, and 
any labeling like "street/district/city" would be purely the mapper's guess.

Are there really countries where if you ask someone for their post code 
they will reply "do you mean my street post code or my district post code"?

Bye
Frederik

-- 
Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"

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