[HOT] Fwd: huts.

Severin Menard severin.menard at gmail.com
Tue Feb 17 16:14:58 UTC 2015


Hi,

To get an idea of what look like the huts you may find hard to identify on
the imagery,
you can have a look on this video
<https://www.youtube.com/watch?v=t8aTKdBs-Ys> 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 here
<http://www.openstreetmap.org/#map=18/5.03162/25.14293&layers=H>. 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.

Sincerely,

Severin

On Tue, Feb 17, 2015 at 11:16 AM, Rod Bera <rod at goarem.org> wrote:

>  Hi John and everyone,
>
> These huts definitely are for living.
>
> Again (see my e-email below), the bigger ones are permanent shelters i.e.
> homes.
> 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).
>
> These huts (or squared equivalents) are the only possible housing when
> people live
>
>    - with less than $2.15 a day (as is the case for 516 millions in
>    Sub-Saharan Africa alone, 1.934 billions globally) and
>    - in rural areas (which in Sub-Saharan Africa make 77% of those below
>    the $2.15 poverty line).
>
> 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.
>
> 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.
>
> 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.
>
> So as Pierre advises for all these:
> 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.
>
> More generally, we have already debated the issue of remote mapping, and
> difficulty, sometimes, of getting the proper local context.
>
> 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.
> 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.
>
> 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.
>
> 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...
>
> Best,
>
> Rod
>
>
>
> On 17/02/15 03:35, john whelan wrote:
>
>  I strongly suspect they are huts that people live in.
>
>  Cheerio John
>
>
>
>  Hi Daniel,
>
> depends on what kind of "hut" you're talking about. Most of these are
> permanent housing. Some (they tend to be smaller) are granaries.
> Try googling images with "west african hut" and "millet granary" to make
> yourself an idea.
>
> Rod
>
>
>
> On 16/02/15 20:09, Daniel Specht wrote:
>
> 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?
>
>  Dan
>
>
>
>  Date: Sun, 15 Feb 2015 18:55:45 -0500
> From: john whelan <jwhelan0112 at gmail.com>
> To: "hot at openstreetmap.org" <hot at openstreetmap.org>
> Subject: [HOT] Validation
> Message-ID:
>         <
> CAJ-Ex1F3+N6dHh62xnjNazs-p-Q8HLMLX77BVd_+ZU78SR51Hg at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Mapping in Africa from satellite images I find I'm adding perhaps half a
> dozen settlements when I validate, they're quite quick and easy to do.
> Some are huts and are not quite so easy to spot.
>
> Question at what point should I invalidate?  The question arises when
> perhaps I've added a dozen settlements and half a dozen highways, I'm
> fairly experienced so fairly comfortable the work is OK after I've added in
> the validation but there is the question that I've added a dozen
> settlements and no one else will be validating.
>
> I'm looking more for pragmatic answers more than anything else, there is a
> concern that if I invalidate a tile it may demotivate a mapper and at the
> moment we have a lot of tiles to map.
>
> Thanks
>
> Cheerio John
>
>  --
> Dan
>
>
> _______________________________________________
> HOT mailing listHOT at openstreetmap.orghttps://lists.openstreetmap.org/listinfo/hot
>
>
>
> --
> 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 - roderic.bera at agrocampus-ouest.fr
>
>
>
>  _______________________________________________
> HOT mailing listHOT at openstreetmap.orghttps://lists.openstreetmap.org/listinfo/hot
>
>
>
> On 16 February 2015 at 21:09, Daniel Specht <danspecht at gmail.com> wrote:
>
>> An example of this is  #892 - Ebola Outbreak, Guinea, Kindia Prefecture,
>> Road network and settlements, task 77.  Lots of the residential areas have
>> only these barely visible round things.
>>
>>
>>  Dan
>>
>>  ---------- Forwarded message ----------
>> From: Daniel Specht <danspecht at gmail.com>
>> Date: Mon, Feb 16, 2015 at 11:09 AM
>> Subject: huts.
>> To: HOT at openstreetmap.org
>>
>>
>> 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?
>>
>>  Dan
>>
>>
>>
>>  Date: Sun, 15 Feb 2015 18:55:45 -0500
>> From: john whelan <jwhelan0112 at gmail.com>
>> To: "hot at openstreetmap.org" <hot at openstreetmap.org>
>> Subject: [HOT] Validation
>> Message-ID:
>>         <
>> CAJ-Ex1F3+N6dHh62xnjNazs-p-Q8HLMLX77BVd_+ZU78SR51Hg at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Mapping in Africa from satellite images I find I'm adding perhaps half a
>> dozen settlements when I validate, they're quite quick and easy to do.
>> Some are huts and are not quite so easy to spot.
>>
>> Question at what point should I invalidate?  The question arises when
>> perhaps I've added a dozen settlements and half a dozen highways, I'm
>> fairly experienced so fairly comfortable the work is OK after I've added
>> in
>> the validation but there is the question that I've added a dozen
>> settlements and no one else will be validating.
>>
>> I'm looking more for pragmatic answers more than anything else, there is a
>> concern that if I invalidate a tile it may demotivate a mapper and at the
>> moment we have a lot of tiles to map.
>>
>> Thanks
>>
>> Cheerio John
>>
>>  --
>> Dan
>>
>>
>>
>>   --
>> Dan
>>
>> _______________________________________________
>> HOT mailing list
>> HOT at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/hot
>>
>>
>
>
> _______________________________________________
> HOT mailing listHOT at openstreetmap.orghttps://lists.openstreetmap.org/listinfo/hot
>
>
>
> --
> 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 - roderic.bera at agrocampus-ouest.fr
>
>
> _______________________________________________
> HOT mailing list
> HOT at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/hot
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/hot/attachments/20150217/d08cfa07/attachment.html>


More information about the HOT mailing list