[HOT] Including hazards in OSM - First draft of typology and methodology

Kate Chapman kate at maploser.com
Fri May 18 02:16:49 BST 2012

Hi Stéphane,

HOT has never previously mapped hazards really other than floods. Many of
these hazard e.g. landslides are not easy for the average person to
observe. Things like the geology and the slope need to be take into
account.  Mostly in Indonesia we map exposure. The exposure information
fits well into the typical information collected in OSM anyway. That data
is useful for other things, for example it is easy for your average person
to map that a building is 2 stories and made of brick. The hazard
information is provided through scientifically models and then the OSM data
feeds together with it to create impact models.

I think this would be better in a separate database or system.  The power
of OpenStreetMap is the easy to observe on the ground information can be
combined with this sort of data.

For example it is conceivable to take OSM data and do community risk
analysis through something like Field Papers.  Those two types of data
could then be combined together for mitigation actions to be decided on.


On Thu, May 17, 2012 at 4:01 PM, Stéphane Henriod <s at henriod.info> wrote:

> Dear all,
> as already discussed in this thread (
> http://lists.openstreetmap.org/pipermail/hot/2012-April/001681.html), I
> am trying to start developing a typology and some methodology for the
> storage and display of hazard zones on OSM.
> Those of you who have followed the discussion know that some questions are
> still open (mainly, *should the hazard information be stored in the main
> Planet file, or somewhere else?*) but, IMO, we can save it for later and
> first start to think on the data model.
> On the wiki page OpenHazardMap (
> http://wiki.openstreetmap.org/wiki/OpenHazardMap), I propose an approach
> and a first draft (still incomplete) for keys and tags.
> While choosing the keys / tags, I tried to keep the following constraints
> in mind:
>    - It should be possible for non-specialists to collect the data. Thus
>    only information that one can collect either from interviews and
>    discussions or from translation from existing registries and studies is
>    necessary to feed the tags. There is no "scientific" measurement required
>    (although such measurement, if available, could easily be translated into
>    the proposed system)
>    - The number of keys should be limited, to avoid discouraging those
>    who will upload data (either from own observations or from translation from
>    existing hazard / disaster registers)
>    - The quantity of collected information should still be sufficient to
>    allow relevant analysis of a situation (not necessarily relevant for
>    hardcore scientists, but relevant for development / humanitarian
>    practitioners and for populations)
>    - It should be flexible enough to accept other types of hazards
> Please note that the approach I propose is adapted to quick-onset hazards
> only. Slow-onset hazards (droughts, cyclones...) might be more difficult to
> map and to integrate, but we should definitely give it a thought, given
> their deadly importance in some countries.
> Would be happy to read from people who have worked with those topics
> (Kate? Fred M? JGC? Rei?, others?) and to compare with what has been done
> in Haiti / Indonesia and what is planned in Senegal and / or other
> countries.
> Cheers,
> Stéphane
> PS: it's the first time I work on the wiki, so accept my apologies if the
> formatting, the links between the pages and the use of templates are a bit
> fishy!
> --
> "Le mot progrès n'aura aucun sens tant qu'il y aura des enfants
> malheureux" -- Albert Einstein
> "A journey does not need reasons. Before long, it proves to be reason
> enough in itself. One thinks that one is going to make a journey, yet soon
> it is the journey that makes or unmakes you." -- Nicolas Bouvier
> Photos de voyages, photos de montagne: http://www.henriod.info
> Skype: [image: Skype name: marmotte_la_gueuse]
> Tajik mobile phone: +992 934 62 46 62
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