<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>_______________________________________________
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>
      </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>
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      <fieldset></fieldset>
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      <pre>_______________________________________________
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</pre>
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    <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>
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