100% agreed with Kate on this. OSM has great potential for collecting building and other information that could be used to build exposure databases. The work HOT has done in Indonesia is an excellent example of this. However, hazard information useful for actual risk modeling is much more complicated and not really able to be collected in meaningful ways through direct field observation alone. Many countries already use the DesInventar platform to create historical disaster catalogs and there are a number of other initiatives underway to try to create platforms for sharing hazard models. Unless I'm misunderstanding something, I don't see the OpenStreetMap toolset or approach as having much to add to the hazard aspect of risk modeling. What would be extremely useful though is some effort towards devising best practices and simple, flexible data models around exposure data collection so more projects could get started with this. Would be happy to spend a little bit of time working with people on this if its of interest.<div>
<br></div><div>Cheers,</div><div>Robert<br><div><br></div><div><br></div><div><br><div><br><div class="gmail_quote">On Fri, May 18, 2012 at 3:16 AM, Kate Chapman <span dir="ltr"><<a href="mailto:kate@maploser.com" target="_blank">kate@maploser.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Stéphane,<div><br></div><div>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.</div>
<div><br></div><div>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. </div><div><br></div>
<div>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.</div>
<span class="HOEnZb"><font color="#888888">
<div><br></div><div>-Kate</div><div><br></div></font></span><div><br><br><div class="gmail_quote"><div><div class="h5">On Thu, May 17, 2012 at 4:01 PM, Stéphane Henriod <span dir="ltr"><<a href="mailto:s@henriod.info" target="_blank">s@henriod.info</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">Dear all,<br><br>as already discussed in this thread (<a href="http://lists.openstreetmap.org/pipermail/hot/2012-April/001681.html" target="_blank">http://lists.openstreetmap.org/pipermail/hot/2012-April/001681.html</a>), I am trying to start developing a typology and some methodology for the storage and display of hazard zones on OSM.<br>
<br>Those of you who have followed the discussion know that some questions are still open (mainly, <i>should the hazard information be stored in the main Planet file, or somewhere else?</i>) but, IMO, we can save it for later and first start to think on the data model.<br>
<br>On the wiki page OpenHazardMap (<a href="http://wiki.openstreetmap.org/wiki/OpenHazardMap" target="_blank">http://wiki.openstreetmap.org/wiki/OpenHazardMap</a>), I propose an approach and a first draft (still incomplete) for keys and tags.<br>
<br>While choosing the keys / tags, I tried to keep the following constraints in mind:<br><ul><li>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)<br>
</li><li>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)</li><li>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)</li>
<li>It should be flexible enough to accept other types of hazards</li></ul><p>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.</p>
<p>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.</p>
<p>Cheers,</p><p>Stéphane</p><p>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!<br></p>--<br>"Le mot progrès n'aura aucun sens tant qu'il y aura des enfants malheureux" -- Albert Einstein<br>
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