[Imports] Import of 27 administrative boundaries in central/southern Nigeria
Rafael Avila Coya
ravilacoya at gmail.com
Thu May 1 11:32:03 UTC 2014
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source:url . Yes, I agree with you. We were putting source:url as a
way to easily contact the ngo that is behind the data provided, but
source=http://ehealthafrica.org will be an smarter solution.
land_area=administrative is actually documented tag:
It seems it's used to make a difference between borders that are
inland and borders inside the sea. We just "followed the book", but at
the same time we don't see this as an issue at all, so we will drop it.
eHealth Africa has given full ODbL compatible license with a signed
document. You can see is in the wiki now:
Local community is very small, if we can call it community. I came two
weeks ago here, and one of the first things I did was to open the
talk-ng mailing list and invite the ones I could contact to join the
mailing list. As for today, almost all are staff of eHealth Africa,
and they fully understand the import and its interest for both OSM and
the humanitarian organisations that may need them (we aren't aware of
any digital map that includes nigerian inner boundaries at the ward
I also sent an email to the HOT mailing list commenting about this and
other possible imports (subject: Road tracing in North Nigeria and
eHealth Africa data imports), and I didn't get any issue either. The
comment and links about this import is not in the first email, but in
the third and fifth of the thread.
On 01/05/14 02:05, Paul Norman wrote:
> A few comments on tagging
> source:url duplicates the source data. I can understand the desire
> for source and source:date, but do they provide additional value
> over the tags on the changeset?
> land_area=administrative is not a documented tag, nor commonly
> used. I?d suggest dropping it.
> We need the license for the data documented. This could be the
> email (with headers) or other document outlining the terms under
> which the data can be used. Upload it to the wiki.
> How are you consulting with the local community about this import?
> *From:*Frank Salet [mailto:frank.salet at ehealthnigeria.org] *Sent:*
> Monday, April 28, 2014 8:41 AM *To:* imports at openstreetmap.org
> *Subject:* [Imports] Import of 27 administrative boundaries in
> central/southern Nigeria
> Hi list,
> [This message is concerning part two (out of two) of importing
> administrative boundaries for Nigeria]
> eHealth Africa Foundation has different kind of geographical data
> that has just been released with an ODbL compatible license. The
> license is the HOT letter of authorisation that many of you
> probably know already.
> Some data is probably very interesting to be imported. Among these
> data, we have the boundaries of all Local Government Areas (LGA's)
> for 27 states of central/southern Nigeria. The country is divided
> in 36 states plus the Federal District of Abuja, and each state
> divided further in a total of 774 LGA's (equivalent to districts).
> In contrast to part one of importing administrative boundaries, we
> don't have boundaries on ward level for central/southern Nigeria.
> The current boundaries in OSM, the ones that origin from
> MapLibrary, are assessed by the mapping specialists of eHealth
> Africa, and are found to be incorrect and not complete. For
> example, the boundary of Kano state is missing a large area in the
> south, where three LGA's are mistakenly given to Kaduna state.
> Regarding the LGA's we noticed that only for a few of them a
> polygon was drawn.
> The eHealth Africa data is originally in Shapefile format. It is
> easily converted to .osm with the JOSM OpenData plugin. With an
> ad-hoc script we can convert the areas to relations, and add the
> corresponding tags. Then, we would import these data state by
> state, replacing the existing Maplibrary data. All the process
> would be carefully validated before being uploaded to the OSM
> database. As there are 27 states involved, the import would
> therefore consist of 27 changesets in total.
> We have written a wiki explaining the process, and we would
> appreciate comments/evaluation from the community before we proceed
> with the import:
> *About eHealth Africa Foundation*
> eHealth Systems Africa Foundation (eHealth Africa) is a
> nongovernmental organization (NGO) dedicated to improving health
> care in developing countries through strengthening health workers
> and the systems that support them. eHealth Africa works towards
> this goal by creating sustainable eHealth and mHealth systems,
> providing technology infrastructure, performing training and
> capacity building workshops, publishing research on our work in
> Africa, and by providing consulting and support for other
> organizations working on health care in Africa. Based in Santa Ana,
> California, in the United States, eHealth Africa?s main office is
> located in Kano, Nigeria.
> *About the polio eradication programme*
> eHealth Africa is supporting polio eradication in Northern Nigeria.
> A GIS is being deployed in Nigeria to help health workers collect
> data and target specific areas for immunization efforts in the
> fight to eradicate polio. High resolution satellite imagery has
> been used as a basis to map the communities. This work is currently
> mapping communities in ten Northern States. Subsequently
> vaccination teams will use the GIS to locate the communities. Using
> GPS technology the whereabouts of the vaccination teams are
> monitored and inputted into GIS to cross-check the mapped
> communities with the visited settlements. By doing that the GIS is
> updated with ?missed? communities and the vaccination teams are
> *About the geo-data*
> In 2011 the programme started in the 8 northern states of Nigeria
> (namely Kano, Borno, Yobe, Sokoto, Zamfara, Katsina, Jigawa and
> Kebbi), and the area has been expanded after that with another 2
> states (namely Bauchi and Kaduna). Using high resolution satellite
> imagery and manual extraction of the features currently most of the
> states are finished mapping, while the rest is being worked on by
> the GIS department of eHealth Africa (consisting of around 20 GIS
> specialists). The mapping activities are focused on the collection
> and marking of each and every settlement in the whole area, since
> that information is required to provide polio immunization to the
> complete population. Besides mapping and naming all the
> settlements, the administrative boundaries are mapped as well as
> the roads, rivers, water bodies, health facilities, schools,
> mosques, wells, markets and more.
> Kind regards,
> *Frank Salet*
> GIS Manager
> /eHealth Systems Africa/
> www.eHealthAfrica.org <http://www.eHealthAfrica.org>
> 25 Race Course Road, Kano, Nigeria
> mobile: (NG) 0809-9850211
> (US) 714-627-9289
> _______________________________________________ Imports mailing
> list Imports at openstreetmap.org
Por favor, non me envíe documentos con extensións .doc, .docx, .xls,
.xlsx, .ppt, .pptx, aínda podendoo facer, non os abro.
Atendendo á lexislación vixente, empregue formatos estándares e abertos.
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