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 <r...@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 <jwhelan0...@gmail.com> > To: "hot@openstreetmap.org" <hot@openstreetmap.org> > Subject: [HOT] Validation > Message-ID: > < > caj-ex1f3+n6dhh62xnjnazs-p-q8hlmlx77bvd_+zu78sr5...@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@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.b...@agrocampus-ouest.fr > > > > _______________________________________________ > HOT mailing > listHOT@openstreetmap.orghttps://lists.openstreetmap.org/listinfo/hot > > > > On 16 February 2015 at 21:09, Daniel Specht <danspe...@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 <danspe...@gmail.com> >> Date: Mon, Feb 16, 2015 at 11:09 AM >> Subject: huts. >> To: HOT@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 <jwhelan0...@gmail.com> >> To: "hot@openstreetmap.org" <hot@openstreetmap.org> >> Subject: [HOT] Validation >> Message-ID: >> < >> caj-ex1f3+n6dhh62xnjnazs-p-q8hlmlx77bvd_+zu78sr5...@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@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/hot >> >> > > > _______________________________________________ > HOT mailing > listHOT@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.b...@agrocampus-ouest.fr > > > _______________________________________________ > HOT mailing list > HOT@openstreetmap.org > https://lists.openstreetmap.org/listinfo/hot > >
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