Hello OSM community,
The Kosovo community has recently signed an agreement with the Kosovo Cadastre
Agency (KCA) to use official data in OpenStreetMap. We have received street
names and geometries, addresses and administrative boundaries.
Our organised mapping activity to map the streets (
https://wiki.openstreetmap.org/wiki/Organised_Editing/Activities/Kosovo_streets_mapathon2
) was quite a success: 41 mappers completed tasks, and we’ve mapped 99% of the
area. We’re still missing about 1200 streets, mostly in cities (Prizren, Pejë,
Mitrovica, countryside around Klinë…)
We would now like to import the administrative boundaries and addresses,
hopefully before the end of the year.
Addresses:
Kosovo recently gave itself a comprehensive, nationwide system of addresses and
new street names. Because OpenStreetMap is the only map that shows the streets,
apps like maps.me are on almost every smartphone in the country. We now want
OpenStreetMap to be the first and best way of showing the country’s house
numbers on a map that a smartphone can use.
We have received about 370k official addresses. Only 3000 are already present
on OpenStreetMap.
The names in the official data were all in uppercase. The community wrote rules
to convert the names and expand abbreviations.
We will be using different methods for different regions, and work municipality
by municipality. In municipalities where there are no addresses in osm, we will
simply import everything.
In others, we will use Dietmar Seifert’s regio-osm tool to find disagreements
between the bases, and manually investigate what we can’t conflate from our
armchairs. The data from KCA has been checked by surveyors a few times, and the
quality of the data is, in our experience, excellent.
In any case, we will simply be using the OSM output that regio-osm produces.
Boundaries:
The cadastral zone boundaries will be converted and imported on admin_layer=8,
one municipality at a time. For the few zones that are already mapped, we will
of course preserve any extra information in OSM that the official data doesn’t
have, like the admin_center member.
The municipalities will then be re-built using the imported boundaries.
Existing relations will be reused, and of course any extra information they
contain will be preserved.
Finally, we will re-build the country boundary. Because that boundary line
contains mountain peaks and touches administrative and nature protection zones
on both sides of the border, this will be labour-intensive manual work.
We therefore plan on working on municipalities one by one, working outwards
from the centre of the country. We will be using JOSM with its ContourMerge
plugin.
The cadastral zone data we’ve received has been reprojected, converted to
topologies, manually fixed for gaps and overlaps and minor problems, converted
with ogr2osm and code very slightly adapted from the Michigan Townships import
at https://github.com/maxerickson/michigantownships. The output has been
uploaded to
http://osm.flossk.org/converted-akk-data/cadastralzones-converted.osm
Community:
Come chat with us on https://t.me/osmkosovo
Thanks:
We would like to thank Milaim Sylka for his help with boundary topologies,
Dietmar Seifert for his precious regio-osm tool and Berat Preniqi from the
Kosovo Cadastre Agency for patiently answering all our questions
Guillaume_______________________________________________
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