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

[Steve Bower]

Regarding residential areas, it would be very helpful to understand how
these residential area polygons will be used. For example:

> For digital and/or printed maps show residential areas at small scale and
individual buildings at large scale
> Distinguish between areas of residential concentration
(landuse=residential) and areas of scattered habitation
> Compute building density by residential area polygon, to estimate
population density and target relief efforts
> etc.

Knowing more about how data will be used would be useful for all
contributors, and may encourage more contributions.

A few examples (with images) provided with the task instructions would be
very helpful - but I understand the time constraints.

Thanks

On Sat, May 2, 2015 at 7:31 PM, Suzan Reed <suzan at suzanreed.com> wrote:

> 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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