Am 27.05.2013 12:00, schrieb talk-ch-request@openstreetmap.ch:
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Date: Sun, 26 May 2013 12:43:35 +0200 From: Simon Poole simon@poole.ch To: Openstreetmap Schweiz/Suisse/Svizzera/Svizra talk-ch@openstreetmap.ch Subject: [talk-ch] Swiss Postal Codes Message-ID: 51A1E757.5030905@poole.ch Content-Type: text/plain; charset=ISO-8859-15
Some time earlier this year when we were working on this years lot of municipality mergers I promised that I would produce some kind of analysis of the postal code tagging since it was likely that the merger work had broken it. Since early May the new release of the postal code boundaries is available and I've done some initial work see http://qa.poole.ch/ch-plz/.
While the information is useful (disambiguation of places with the same names for example) I don't believe importing* the polygons into OSM makes any sense at all, they are at the same time too close and too different from the administrative boundaries making maintenance a nightmare and just asking for unintentional damage. I would think that the best solution would be to add the postal code to the house addresses in places where we have multiple post codes in use.
Any other opinions?
Here in Berne I usually add to houses what are part of the Parzellenplan Bern the whole set out of addr:housenumber, addr:postcode, addr:street, addr:city (city, because Berne has more than 100K inhabitants) and addr:country. Maybe this is too much, but like this I'm sure the address will be found in any case.
In regards to postal code boundaries, it might be too much beside/on top of the community boundaries and confuse people. Nevertheless, as postal codes are a worldwide UPU concept, it might be worth to think about, if postal code boundaries can be switched on/off as a additional offer on worldwide OSM map(s).
Andreas
Simon
- while the data is freely usable, if we do decide to import we would
need to clarify the attribution requirements first.
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End of talk-ch Digest, Vol 657, Issue 1