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<div class="moz-cite-prefix">On 30/07/2021 11:24, <a class="moz-txt-link-abbreviated" href="mailto:dfjkman@gmail.com">dfjkman@gmail.com</a>
wrote:<br>
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">After
a quick look at the data available for parts of Zambia I
know well I would suggest that caution is used. I had a look
at areas in the middle of Lake Kariba and there are
buildings marked that are obviously boats or what are known
as Kapenta rigs used for netting kapenta, a small sardine
like fish. I also did a quick check in the Kafue National
Park where there should be very few buildings and I suspect
ant hills are being mapped here as buildings, something
remote mappers tend to do as well. Africa is already full of
very poor data, adding to it would not help in any way.</span></p>
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<p>Apologies if I'm repeating myself to anyone here, but in cases
such as this I'd suggest commenting politely on the changeset
explaining why some things that have been added as buildings
aren't in reality buildings. Mappers taking part in remote
mapping projects in Africa are often new to OSM, and in some cases
haven't always been given given the assistance they need to tell
if something really is a building, and if so how to map it well
(for example, make it rectangular, if it's rectangular on the
imagery, by pressing "q").</p>
<p>I'd always try and communicate in a language that the mapper is
likely to understand - for example if you don't speak French but
they're obviously from a francophone school or university, at the
very least add a machine-translated version of your comment into
French. Machine translation quality various hugely but at the
very least it'll be "some words in a language that they
understand" rather than "a computer saying something that they can
ignore".</p>
<p>You may also be able to fish something out of the "hashtag soup"
of the changeset comment - for example looking at (very) recent
edits I can see someone who's included "#hotosm-project-9842"* and
if I needed to see what instructions had been given for that task
I could look at <a class="moz-txt-link-freetext" href="https://tasks.hotosm.org/projects/9842">https://tasks.hotosm.org/projects/9842</a> for more
information.</p>
<p>If the edits were months or years ago the mappers concerned may
have moved on and may not reply to changeset discussion comments.
If things still need tidying up there then my first port of call
would be the most relevant local mapper community (see
<a class="moz-txt-link-freetext" href="https://openstreetmap.community/">https://openstreetmap.community/</a> for what is suggested). You can
also contact the DWG for advice and technical help about how best
to proceed (email <a class="moz-txt-link-abbreviated" href="mailto:data@openstreetmap.org">data@openstreetmap.org</a> ).</p>
<p>Best Regards,</p>
<p>Andy (from the DWG)<br>
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<p>* for the avoidance of any doubt this is just a random example -
found by looking at the OSM history in roughly the middle of the
continent, and it has no buildings in it at all (problematic or
otherwise).<br>
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