<div dir="ltr"><div><div><div>Hi,<br><br></div>To get an idea of what look like the huts you may find hard to identify on the imagery,<br></div>you can have a look on <a href="https://www.youtube.com/watch?v=t8aTKdBs-Ys">this video</a> of a small plane landing on Zemio airstrip in Central African Republic, especially just before the plane lands. It shows well what you can see <a href="http://www.openstreetmap.org/#map=18/5.03162/25.14293&layers=H">here</a>. And you figure out that the round brown shapes are obvious nice huts. I put that on Zemio TM job to help the contributors: usually when creating a job I check if there is no video showing the situation from the ground. In South Sudan it made me figure out what I thought were walls are actually wooden fences.<br><br>Sincerely,<br><br></div>Severin<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Feb 17, 2015 at 11:16 AM, Rod Bera <span dir="ltr"><<a href="mailto:rod@goarem.org" target="_blank">rod@goarem.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div>Hi John and everyone,<br>
<br>
These huts definitely are for living. <br>
<br>
Again (see my e-email below), the bigger ones are permanent
shelters i.e. homes. <br>
The smaller ones are strorage (granaries), containing food for a
whole family (or more) for a whole year (in the best of cases,
just after harvesting) or less (depending on time in year and
amounts of previous harvest. One or two successive bad harvests
most likely means famine).<br>
<br>
These huts (or squared equivalents) are the only possible housing
when people live <br>
<ul>
<li>with less than $2.15 a day (as is the case for 516 millions
in Sub-Saharan Africa alone, 1.934 billions globally) and</li>
<li>in rural areas (which in Sub-Saharan Africa make 77% of
those below the $2.15 poverty line).</li>
</ul>
Figures are from UN-Habitat2003. Obviously they have increased
since then. When I am talking of $2.15, this is obviously not
pocket money. It's generally speaking the economic equivalent of
the food they produce and eat, etc.<br>
<br>
77% (this figure is higher than elsewhere in the world, where the
majority of poverty has moved to urban slums) makes about
397millions of "rural poors" in this part of the world alone.<br>
<br>
Now, very rough rule-of-thumb: 6 per house (families aren't that
big: infant mortality rate alone in Guinea narrows 10% without
ebola) + 1 granary for 3 houses (things can be very different from
place to place) :. 100 million houses. Amongst them, expect a fair
amount of huts. <br>
<br>
So as Pierre advises for all these: <br>
building=yes and shift+O to draw circles. And happy shift-O-ing!
But before, we need highways=tracks (and other roads), and
landuse=residential.<br>
<br>
More generally, we have already debated the issue of remote
mapping, and difficulty, sometimes, of getting the proper local
context. <br>
<br>
Our community is growing and most certainly including people in
these areas who have more accurate knowledge of terrain, who know
life "as it is" there. <br>
We should rely more on them, and I welcome them to take some time
explaining things that seem obvious to them, but are not to many
westerners who take for granted all the wealth, goods,
infrastructures... they benefit from.<br>
<br>
Sometimes however, language is an issue and it would be nice to
see native/fluent english speakers make the others more
self-confident, or risk themselves into other languages.<br>
<br>
It's a good thing we can share all this in this list. It is not a
matter of "knowing" or "not knowing", nor is it of "just mapping",
rather an opportunity to better know each other's cultures and
realities. So I welcome more of these exchanges as they can serve
improved mutual understanding. In-so-doing HOT and OSM can offer
us all far more than just maps (or data) : a better understanding
of the world and people living on this planet, for a start...<br>
<br>
Best,<br>
<br>
Rod<span class=""><br>
<br>
<br>
<br>
On 17/02/15 03:35, john whelan wrote:<br>
</span></div><span class="">
<blockquote type="cite">
<div dir="ltr">
<div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">I
strongly suspect they are huts that people live in.<br>
<br>
</div>
<div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Cheerio
John<br>
</div>
</div>
</blockquote>
<br>
<br>
</span><div lang="x-unicode"><span class="">
<div>Hi Daniel,<br>
<br>
depends on what kind of "hut" you're talking about. Most of
these are permanent housing. Some (they tend to be smaller) are
granaries.<br>
Try googling images with "west african hut" and "millet granary"
to make yourself an idea. <br>
<br>
Rod<br>
<br>
<br>
<br>
On 16/02/15 20:09, Daniel Specht wrote:<br>
</div>
</span><blockquote type="cite"><div><div class="h5">
<div dir="ltr"><span style="font-size:12.8000001907349px">Oops
-- didn't mean to send that last one. Question about huts
-- in West Africa there are a lot of huts, sometimes just
out in the forest with no rectangular buildings or clearings
nearby. Are these for storage? Temporary housing?</span>
<div><span style="font-size:12.8000001907349px"><br>
</span></div>
<div><span style="font-size:12.8000001907349px">Dan<br>
</span>
<div><span style="font-size:12.8000001907349px"><br>
</span></div>
<div><span style="font-size:12.8000001907349px"><br>
</span></div>
<div><span style="font-size:12.8000001907349px"><br>
</span></div>
<div><span style="font-size:12.8000001907349px">Date: Sun,
15 Feb 2015 18:55:45 -0500</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">From: john
whelan <</span><a href="mailto:jwhelan0112@gmail.com" style="font-size:12.8000001907349px" target="_blank">jwhelan0112@gmail.com</a><span style="font-size:12.8000001907349px">></span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">To: "</span><a href="mailto:hot@openstreetmap.org" style="font-size:12.8000001907349px" target="_blank">hot@openstreetmap.org</a><span style="font-size:12.8000001907349px">" <</span><a href="mailto:hot@openstreetmap.org" style="font-size:12.8000001907349px" target="_blank">hot@openstreetmap.org</a><span style="font-size:12.8000001907349px">></span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Subject: [HOT]
Validation</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Message-ID:</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px"> <</span><a href="mailto:CAJ-Ex1F3%2BN6dHh62xnjNazs-p-Q8HLMLX77BVd_%2BZU78SR51Hg@mail.gmail.com" style="font-size:12.8000001907349px" target="_blank">CAJ-Ex1F3+N6dHh62xnjNazs-p-Q8HLMLX77BVd_+ZU78SR51Hg@mail.gmail.com</a><span style="font-size:12.8000001907349px">></span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Content-Type:
text/plain; charset="utf-8"</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Mapping in
Africa from satellite images I find I'm adding perhaps
half a</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">dozen
settlements when I validate, they're quite quick and
easy to do.</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Some are huts
and are not quite so easy to spot.</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Question at
what point should I invalidate? The question arises
when</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">perhaps I've
added a dozen settlements and half a dozen highways, I'm</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">fairly
experienced so fairly comfortable the work is OK after
I've added in</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">the validation
but there is the question that I've added a dozen</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">settlements and
no one else will be validating.</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">I'm looking
more for pragmatic answers more than anything else,
there is a</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">concern that if
I invalidate a tile it may demotivate a mapper and at
the</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">moment we have
a lot of tiles to map.</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Thanks</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Cheerio John</span><br clear="all">
<div><br>
</div>
-- <br>
<div>Dan</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div></div><span class=""><pre>_______________________________________________
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<a href="https://lists.openstreetmap.org/listinfo/hot" target="_blank">https://lists.openstreetmap.org/listinfo/hot</a>
</pre>
</span></blockquote>
<br><span class="">
<br>
<pre cols="72">--
Rod Béra, MCF Géomatique / Lecturer, Geomatics
et SIG pour l'Environnement / and Environmental GIS
Agrocampus-Ouest|65 r.Saint-Brieuc|CS84215|35042 Rennes cedex|France
+33 (0) 223 48 5553 - <a href="mailto:roderic.bera@agrocampus-ouest.fr" target="_blank">roderic.bera@agrocampus-ouest.fr</a></pre>
</span></div>
<br><div><div class="h5">
<fieldset></fieldset>
<br>
<div style="font-family:-moz-fixed;font-size:12px" lang="x-unicode">
<pre>_______________________________________________
HOT mailing list
<a href="mailto:HOT@openstreetmap.org" target="_blank">HOT@openstreetmap.org</a>
<a href="https://lists.openstreetmap.org/listinfo/hot" target="_blank">https://lists.openstreetmap.org/listinfo/hot</a>
</pre>
</div>
<br>
<blockquote type="cite">
<div class="gmail_extra"><br>
<div class="gmail_quote">On 16 February 2015 at 21:09, Daniel
Specht <span dir="ltr"><<a href="mailto:danspecht@gmail.com" target="_blank">danspecht@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">An example of this is
<h1>#892
- Ebola Outbreak, Guinea, Kindia Prefecture, Road
network and settlements, task 77. Lots of the
residential areas have only these barely visible round
things.</h1>
<div><br>
</div>
<div><br>
</div>
<div>Dan</div>
<div>
<div>
<div><br>
</div>
<div class="gmail_quote">---------- Forwarded message
----------<br>
From: <b class="gmail_sendername">Daniel Specht</b>
<span dir="ltr"><<a href="mailto:danspecht@gmail.com" target="_blank">danspecht@gmail.com</a>></span><br>
Date: Mon, Feb 16, 2015 at 11:09 AM<br>
Subject: huts.<br>
To: <a href="mailto:HOT@openstreetmap.org" target="_blank">HOT@openstreetmap.org</a><br>
<br>
<br>
<div dir="ltr"><span style="font-size:12.8000001907349px">Oops --
didn't mean to send that last one. Question
about huts -- in West Africa there are a lot of
huts, sometimes just out in the forest with no
rectangular buildings or clearings nearby. Are
these for storage? Temporary housing?</span>
<div><span style="font-size:12.8000001907349px"><br>
</span></div>
<div><span style="font-size:12.8000001907349px">Dan<br>
</span>
<div><span style="font-size:12.8000001907349px"><br>
</span></div>
<div><span style="font-size:12.8000001907349px"><br>
</span></div>
<div><span style="font-size:12.8000001907349px"><br>
</span></div>
<div><span style="font-size:12.8000001907349px">Date:
Sun, 15 Feb 2015 18:55:45 -0500</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">From:
john whelan <</span><a href="mailto:jwhelan0112@gmail.com" style="font-size:12.8000001907349px" target="_blank">jwhelan0112@gmail.com</a><span style="font-size:12.8000001907349px">></span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">To:
"</span><a href="mailto:hot@openstreetmap.org" style="font-size:12.8000001907349px" target="_blank">hot@openstreetmap.org</a><span style="font-size:12.8000001907349px">" <</span><a href="mailto:hot@openstreetmap.org" style="font-size:12.8000001907349px" target="_blank">hot@openstreetmap.org</a><span style="font-size:12.8000001907349px">></span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Subject:
[HOT] Validation</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Message-ID:</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">
<</span><a href="mailto:CAJ-Ex1F3%2BN6dHh62xnjNazs-p-Q8HLMLX77BVd_%2BZU78SR51Hg@mail.gmail.com" style="font-size:12.8000001907349px" target="_blank">CAJ-Ex1F3+N6dHh62xnjNazs-p-Q8HLMLX77BVd_+ZU78SR51Hg@mail.gmail.com</a><span style="font-size:12.8000001907349px">></span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Content-Type:
text/plain; charset="utf-8"</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Mapping
in Africa from satellite images I find I'm
adding perhaps half a</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">dozen
settlements when I validate, they're quite
quick and easy to do.</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Some
are huts and are not quite so easy to spot.</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Question
at what point should I invalidate? The
question arises when</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">perhaps
I've added a dozen settlements and half a
dozen highways, I'm</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">fairly
experienced so fairly comfortable the work
is OK after I've added in</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">the
validation but there is the question that
I've added a dozen</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">settlements
and no one else will be validating.</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">I'm
looking more for pragmatic answers more than
anything else, there is a</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">concern
that if I invalidate a tile it may
demotivate a mapper and at the</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">moment
we have a lot of tiles to map.</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Thanks</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Cheerio
John</span><span><font color="#888888"><br clear="all">
<div><br>
</div>
-- <br>
<div>Dan</div>
</font></span></div>
</div>
</div>
</div>
<br>
<br clear="all">
<div><br>
</div>
</div>
</div>
<span><font color="#888888">-- <br>
<div>Dan</div>
</font></span></div>
<br>
_______________________________________________<br>
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<br>
</blockquote>
</div>
<br>
</div>
<br>
<fieldset></fieldset>
<br>
<pre>_______________________________________________
HOT mailing list
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<a href="https://lists.openstreetmap.org/listinfo/hot" target="_blank">https://lists.openstreetmap.org/listinfo/hot</a>
</pre>
</blockquote>
<br>
<br>
</div></div><span class=""><pre cols="72">--
Rod Béra, MCF Géomatique / Lecturer, Geomatics
et SIG pour l'Environnement / and Environmental GIS
Agrocampus-Ouest|65 r.Saint-Brieuc|CS84215|35042 Rennes cedex|France
+33 (0) 223 48 5553 - <a href="mailto:roderic.bera@agrocampus-ouest.fr" target="_blank">roderic.bera@agrocampus-ouest.fr</a></pre>
</span></div>
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<br></blockquote></div><br></div>