[OSM-talk-be] GRB import in progress

[joost schouppe]

Hi,

Since a month or two, we have been scaling up the building import in
Flanders, based on GRB buildings. We have summarized the instructions in a
ten page presentation, and it is now really easy to get started. You do
need JOSM, but the list of functionalities needed is really limited.
However, we don't want to end up with silly stuff like this [1]. The actual
data integration into OSM is not easy:

- the source data is a bit outdated (we are working on that!), so buildings
might be missing or razed by now. Even when it's not GRB can be behind
reality.
- the GRB buildings have CRAB-addresses merged to them. That merge might be
wrong, so you have to check all buildings! Or the building might have
several entrances, perhaps on more than one street. So then you need to
make address nodes
- the tool makes an educated guess as to what the building type is. But
that guess can be wrong, so again you have to check all the buildings.
There are also some building types (like "verdieping") which need special
attention.
- you have to conflate with existing data (merge histories for existing
buildings; make sure you don't put buildings on top of other objects) and
we expect you to care about ALL the data, not just the building data

Overall, I don't think you can usually properly import more than a few
hundred buildings per hour. But it's nice to see the map fill up with
buildings, and finally have some decent address coverage.

If you would like to join us in mapping the missing buildings in Flanders,
start reading here:

https://wiki.openstreetmap.org/wiki/AIV_GRB_building_import

We have a support group on Riot where we check each other and are happy to
share tips. You do need JOSM, but the list of functionalities needed is
really limited. So it's a good time to learn how to use it!

It might be easier to learn this in person. Join us at any Meetup in
Flanders or Brussels, there will always be someone who knows about the
import. Or ask us to have a Meetup near you. We're always looking for an
excuse to visit your town :-)

1: https://www.google.com/maps/@43.7199837,6.9785435,18.6z
2: https://www.meetup.com/OpenStreetMap-Belgium/

-- 
Joost Schouppe
OpenStreetMap <http://www.openstreetmap.org/user/joost%20schouppe/> |
Twitter <https://twitter.com/joostjakob> | LinkedIn
<https://www.linkedin.com/pub/joost-schouppe/48/939/603> | Meetup
<http://www.meetup.com/OpenStreetMap-Belgium/members/97979802/>
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