[OSM-talk] RFC: Import of OpenGeoDB to OSM

[Martin Trautmann]

Frederik Ramm wrote:

> As to where their data comes from - we don't really know 


Most of it was based on NIMA data, with 1/10 minute precision

Much data has been added since.

I don't know how this data should be added best.

When you import everything, you will have lots of duplicate places.

My recommended approach and current work is to add the best reference, 
which is the location id of the currend way or node.

Take e.g. the road I live in:
http://www.openstreetmap.org/?lat=48.0255&lon=7.8644&zoom=12

It's within Freiburg, Baden-Württemberg, Germany

The town district is named Zähringen (about 1000 years old). Its loc id 
in opengeodb is 81730:

http://fa-technik.adfc.de/code/opengeodb.pl?locid=81730;c=D

There's not much info about this district, thus it may share its data 
with its parent Freiburg through its "part of" relation:
http://fa-technik.adfc.de/code/opengeodb.pl?locid=16633;c=D

base data is e.g. its abbreviation (car plates), inhabitants, postal 
code, telephone prefix, area,while there may be added extra data such as 
height, different names in other languages etc.

Svens approach is to move most of the data to OSM. Personally, I'd 
prefer to take only a subset for reference, while most of the roads 
should have a loc_id tag about the district where they belong to.

- Martin