Hi,
Mayeul KAUFFMANN wrote:
We would like to run our script on Bing data to upload the result to
OSM. We have built the technical capacity to run it on a global scale on
(very) high resolution satellite imagery. We would like to discuss with
the community the best way to upload the data
Be aware that there is no plain "uploading" to OSM. As you have already
said, your data might conflict with existing data and you cannot just
load it into OSM on a global scale. What you could do is provide your
data as an extra data source - say, a shape file - and make it available
to mappers who could then, with the help of e.g. Potlatch's Vector
Background feature, copy individual, selected data objects from your
dataset into OSM.
On OSM, there are several tags that are related to our understanding of
density of building layer.
Some of them are:
density= (with categories or percentage)
building:density:grade = (with numerical category)
Neither of those are widely used.
In the wiki there for tagging settlements in a 0-30 scale (rank)
according to importance.
These are also in very limited use, and the rank is not intended to
imply a density but an importance.
The only thing that is really widely used in OSM is
"landuse=residential", meaning this is a residential area. This is a
yes/no thing; you cannot have a "50% residential" area, and we don't
usually distinguish different grades of population density.
That's not saying that you couldn't add some kind of qualifier to
landuse=residential as long as you remain within the usual bounds; for
example, it would not be ok to tag an area which has one building per
square kilometre as "landuse=residantial, density=1%" or so, because
something so sparsely built up is not a residential area in our terms.
We could build on those with some additional data or create similar tags
to upload polygons to OSM.
As I said, I don't recommend that you upload anything; just make your
data available for local mappers who want to use it to supplement their
work. This means that your data will not land in OSM in areas where we
have no mappers, but that's ok; it is never a good idea to have data
without people to care for it.
Bye
Frederik
--
Frederik Ramm ## eMail [email protected] ## N49°00'09" E008°23'33"
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