[Talk-ca] Merging OSM + Geobase

[William Lachance]

On Thu, 2009-03-26 at 18:56 -0400, Michel Gilbert wrote:

> It is nice to application using OSM data. Regarding your approach, one
> of the problems I see to use street name to match both data sets is
> that GeoBase and OSM do not have the same data model. For example, an
> OSM way does not break at road intersections where GeoBase does. So in
> practice you'll many GeoBase matches for on OSM way. On more problem
> is that not all GeoBase data sets have names. In Nova Scotia you are
> lucky you have name and block face addresses, but it is not the cases
> forl the provinces. I am in favor of the geometry matching approach. I
> priorise the OSM existing data so I extend or shorten Geobase segments
> to integrate them to the existing osm data. I agree with you : it
> would be nice to have a full OSM coverage and GeoBase is a good source
> to achieve this goal. 

Yup, I should have noted this-- it probably makes sense in many cases
for this script to merge some of the GeoBase segments together into
single OSM ways, as there doesn't seem to be any reason for them to
remain seperate (e.g. I believe all the "Agricola" segments in Halifax
have the same properties).
-- 
William Lachance <wrlach at gmail.com>