[HOT] Experienced mapper please verify: nonexistent stream on Task #1955, other mistakes

Suzan Reed suzan at suzanreed.com
Sat May 2 23:31:17 UTC 2015


In Nepal villages can be spread out over very large areas. In Nepal a village is often not a tight group of buildings. An area as large as a half a mile wide will all relate as a village. Small clusters of buildings can be one family, or a monastery, but people 500, even 1000 meters away are neighbors in that village. 

So what do we do with large areas of houses and buildings spread out over a 1000 ft area…in Nepal? 


On May 2, 2015, at 4:19 PM, Pierre Béland wrote:

Dont forget that we work to locate people at risk after 8 days without any relief. People have lost everything under the houses ruins including food. It is important to report all the residential areas to assure to provide them relief. 

We should remove the instructions 20 or so. Did not notice. This is valuable if you trace all buildings under clusters of 20. Isolated areas, even under 20 houses should be reported too.
regard
 
Pierre 

De : Kretzer <kretzer at gmx.net>
À : Suzan Reed <suzan at suzanreed.com> 
Cc : "HOT at openstreetmap.org" <hot at openstreetmap.org> 
Envoyé le : Samedi 2 mai 2015 19h07
Objet : Re: [HOT] Experienced mapper please verify: nonexistent stream on Task #1955, other mistakes

Hi again, I just noticed Emmor beat me to the answer ... 
I wanted to ad that it can be useful to look at the history of changes in a case like this. Sometime I do this to make sure if the other person possibly had more recent information (or local knowledge, as there was a lot of mapping activity in Nepal in the last years - in some areas I have seen many edits by users with Nepalese sounding names). 

You can find the history if you change to the map view and click on the "History" tab on the top. In this case there were several very new users contributing.

As to the residential areas, I would draw the line around the larger clusters of buildings and leave the others outside. The instructions in this project specify that it should be around "20 or so" buildings. Mappers' styles vary, personally I don't like the tiny "residential areas". 
The important thing is that the buildings are there, so that rescuers can see were people are living.




> Gesendet: Sonntag, 03. Mai 2015 um 00:47 Uhr
> Von: "Suzan Reed" <suzan at suzanreed.com>
> An: Kretzer <kretzer at gmx.net>
> Betreff: Re: Aw: [HOT] Experienced mapper please verify: nonexistent stream on Task #1955, other mistakes
>
> Hi, 
> 
> I questioned the large areas, yet villages in Nepal are really spread out over big areas. I'm not sure what to do but to leave them for not and wait. 
> 
> Suzan 
> Portland, Oregon USA
> 
> 
> On May 2, 2015, at 3:42 PM, Kretzer wrote:
> 
> Hi Susan,
> zooming out you can see that this is at the bottom of a quite large valley, so it is very likely that there is a stream, even if it isn't clearly visible. Maybe the person who drew it was using different imagery. I think it's not in the right place in the middle section (near the mapped path), but I would prolong it to the river in the east. it's not the most important feature at the moment, though.
> 
> What disturbs me more in the tile are the huge residential areas - those boundaries should be close to the buildings. They are also overlapping in one place, and there is an area within an area in the western part. Both shouldn't happen.
> 
> I'm just a semi-noob myself, but I am quite sure about these questions.
> 
> 
> 
> > Gesendet: Sonntag, 03. Mai 2015 um 00:02 Uhr
> > Von: "Suzan Reed" <suzan at suzanreed.com>
> > An: "HOT at openstreetmap.org" <hot at openstreetmap.org>
> > Betreff: [HOT] Experienced mapper please verify: nonexistent stream on Task #1955, other mistakes
> > 
> > Someone with advanced mapping experience, please review. 
> > 
> > There isn't a stream at the locations listed below. Seem to be lots of mistakes on this task. Might be new information, or? 
> > 
> > #1018 - Nepal Earthquake, 2015, detailed mapping 2nd pass
> > 
> > Task #1955
> > 
> > http://www.openstreetmap.org/edit?editor=id&#map=20/28.08949/84.74058
> > 
> > http://www.openstreetmap.org/edit?editor=id&#map=16/28.0890/84.7460
> > 
> > PLEASE ADVISE ME ON WHAT TO DO WITH THIS TASK. 
> > _______________________________________________
> > HOT mailing list
> > HOT at openstreetmap.org
> > https://lists.openstreetmap.org/listinfo/hot
> > 
> 
> 

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