[Talk-ca] Own experience with Geobase

[Dan Putler]

If you want to maintain the address ranges in the data (which are needed
for interpolated geocoding) you will want to maintain the block face
(intersection to intersection) ways. Moreover, doing this would ease the
ability to use the OSM edits to update the original GeoBase NRN since
the need to break the edited ways (road segments) at intersections would
not be needed.

Dan
  
On Wed, 2008-12-17 at 11:41 -0500, Stefan Monnier wrote:
> > - The Geobase segment geometry (ways segmented at each intersection) becomes
> > OSM ways. Keeping the original geometry assure the link between Geobase/OSM
> > for further updates using the nat_ref. However, in OSM, the rendering is not
> > nice because it repeats the street name and ref numbers.
> 
> Keeping the nat_ref seems like the right thing to do, indeed, otherwise
> merging future updates from GeoBase may turn out to be very painful.
> But having so many ways seems a bit problematic to me (although such
> segmentation is sometimes needed anyway, e.g. when a street changes its
> onewayness).  Couldn't we merge the segments into a single way and then
> keep a list of NIDs in nat_ref?
> 
> In any case, thanks for your effort, it looks like a good start.
> 
> 
>         Stefan
> 
> 
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-- 
Dan Putler
Sauder School of Business
University of British Columbia