[HOT] building=hut

Heather Leson heatherleson at gmail.com
Thu Sep 11 23:05:16 UTC 2014

Thanks. I am going to ping Andrew Buck. this is something I could do
Saturday morning if I have a complete list of what is needed.


Heather Leson
heatherleson at gmail.com
Twitter: HeatherLeson
Blog: textontechs.com

On Thu, Sep 11, 2014 at 1:04 PM, Claire Halleux <claire.halleux at hotosm.org>

> Hi Heather
> Definitely! That's the kind of material currently pushed by Blake Girardot
> and the Training WG, even if it's not done in a Gdoc but likely through the
> wiki, we are still gathering pictures and investigating licensing issues.
> Anyone who wants to help on this is welcome to join our discussion or
> meetings.
> Huts had been a bit part of a recurring discussion, which explains the
> specific posting.
> Thanks,
> Claire
> Claire Halleux
> Volunteer and Member of the Board
> +243 99 256 9980 (Kinshasa, DRC)
> Humanitarian OpenStreetMap Team
> http://www.hotosm.org/
> http://wiki.openstreetmap.org/wiki/2014_DRC_Ebola_Response
> On Thu, Sep 11, 2014 at 3:59 PM, Heather Leson <heatherleson at gmail.com>
> wrote:
>> Nick and others,
>> Last week Andrew was helping someone identify and tag mines. Today, Nick
>> is explaining huts.
>> Do you think that it would help to have a basic compilation of tags,
>> satellite screenshots and pictures to help guide new mappers for this
>> region? We could simply start a google doc for pictures, tags and just keep
>> adding it.
>> It might help with accuracy.
>> Let me know and I can help.
>> heather
>> Heather Leson
>> heatherleson at gmail.com
>> Twitter: HeatherLeson
>> Blog: textontechs.com
>> On Thu, Sep 11, 2014 at 9:44 AM, Nick Allen <nick.allen.54 at gmail.com>
>> wrote:
>>>  Hi,
>>> A recent post on this list led me to investigate the tag building=hut.
>>> I'm not entirely sure that I remember it's history within HOT, but I
>>> believe many of us started using it on round thatched dwellings at the
>>> start of the Ebola outbreak. I've been creating a circle of the correct
>>> size and tagging the way as 'building=hut' in much the same way as we
>>> create a rectangle / polygon on a square sided structure and tag it
>>> building=yes. The info on the main tagging wiki at
>>> http://wiki.openstreetmap.org/wiki/Key:building shows the tag being
>>> used on an area, not a node.
>>> I've had a quick look on overpassturbo for part of Liberia, and there
>>> are clusters of the tag, in some places on a node & in others on a polygon
>>> - on at least one occasion the node has a comment similar to '7 huts'.
>>> A quick query on taginfo for building=hut;
>>> All    832415,
>>> Node   8113
>>> Way 824247
>>> Relation   55
>>> The purpose of creating the polygon was for the clever GIS folk to
>>> analyse and create population estimates, when used in conjunction with the
>>> landuse=residential polygon which needs to be traced fairly closely around
>>> the perimeter of the cluster of buildings to allow accurate estimates of
>>> population for a village / hamlet / town (Something to do with area
>>> calculations). I suspect that it is still being used for that purpose, and
>>> will continue to do so. Also if the building is traced it appears on the
>>> map, but if it is a node it does not. On the basis you can do a more
>>> accurate calculation on the area from the polygon & you can't do it on a
>>> node that could represent an unknown quantity of buildings I think we need;
>>> * When remote mapping an area, unless the task description says
>>> otherwise, create a polygon for the round dwelling and tag it building=hut
>>> * To ensure our own training & reference sites, such as wiki pages,
>>> LearnOSM and slide shows or other materials are up to date - if it's wrong
>>> & you can't fix it, at least highlight it so someone can.
>>> --
>>> Nick
>>> Volunteer 'Tallguy' for
>>> https://wiki.openstreetmap.org/wiki/Humanitarian_OSM_Team
>>> http://www.openstreetmap.org/user/Tallguy
>>> Treasurer, website & Bonus Ball admin for
>>> http://www.6thswanleyscouts.org.uk/ (treasurer at 6thswanleyscouts.org.uk)
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