Re: [HOT] Fwd: huts.
I had a session tonight with Fofana from Burkina Faso. He his familiar with this type of habitat that we can also see in Burkina villages. We examined the villages in the Kandia area. In the Kandia area, we see a lot of fields with lighter colors. We often find small habitats in what looks like fields. The habitat is als very dispersed with often a few houses. If there are square houses, it is easier to find the hamlets. But if only huts, we have to zoom-in more to assure that there are houses. Zooming-in enough, we can make easily the distinction between the big and smaller huts. The smaller ones are the granaries and the larger the permanent houses. This global view shows how disperse is the habitat with small hamlets in this area. https://www.openstreetmap.org/#map=14/10.1476/-12.857 This link clearly shows permanent housing in large huts.https://www.openstreetmap.org/#map=19/10.189236/-12.853813 This link cleary shows the difference between the granaries (smaller huts) and houses.https://www.openstreetmap.org/#map=19/10.163169/-12.863288 In this area, it is hard to spot all the small hamlets if we do not zoom enough.https://www.openstreetmap.org/#map=18/10.127034/-12.845559 If you want to see more examples, look on Youtube. Search for West africa villages or for mud huts. You should see various examples. Pierre ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Fwd: huts.
Look also at this thread in december this same subject where I provided some links to images.Humanitarian OpenStreetMap (HOT) - [Feature Interpretation] #817 - Guinea, Kankan East Pierre De : Severin Menard severin.men...@gmail.com À : Rod Bera r...@goarem.org Cc : hot@openstreetmap.org hot@openstreetmap.org Envoyé le : Mardi 17 février 2015 11h14 Objet : Re: [HOT] Fwd: huts. 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 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. 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
Re: [HOT] Fwd: huts.
Hi all. Is there any photos from the ground? Using only the satellite images it's rather hard to say is it huts with people living in or some kind of temporal agricultural construction (like haystack with roof) ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Fwd: huts.
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 mailto:jwhelan0...@gmail.com To: hot@openstreetmap.org mailto:hot@openstreetmap.org hot@openstreetmap.org mailto:hot@openstreetmap.org Subject: [HOT] Validation Message-ID: caj-ex1f3+n6dhh62xnjnazs-p-q8hlmlx77bvd_+zu78sr5...@mail.gmail.com mailto:caj-ex1f3%2bn6dhh62xnjnazs-p-q8hlmlx77bvd_%2bzu78sr5...@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 list HOT@openstreetmap.org https://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
[HOT] Fwd: huts.
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
Re: [HOT] Fwd: huts.
I strongly suspect they are huts that people live in. Cheerio John 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 list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
