¿How to mantain a relation between flood ocurrence and frontier/high? Sometimes in developing world construction companies arise (not stilt) houses in areas where floods has ocurred! I -- modestly -- think if we put evidence of flood (hazard) frontier over time (made and know by grassroots) could help to avoid this kind of situations.<div>
<br></div><div>¿Should be nodes or poligons?<br><div><br></div><div>Thanks,</div><div><br></div><div>Humberto</div><br><div class="gmail_quote">2012/9/6 Pierre Béland <span dir="ltr"><<a href="mailto:infosbelas-gps@yahoo.fr" target="_blank">infosbelas-gps@yahoo.fr</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-size:10pt;font-family:arial,helvetica,sans-serif"><div><div><div style="font-size:10pt;font-family:arial,helvetica,sans-serif">
<div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:arial,helvetica,sans-serif"><span>I also agree with these propositions. <br><br>Highway=path seems preferable to higway=footway.<br>
</span><br></div><span>For flood hazards, Stephane propositions give the possibililty to take account of various hazards. The hazard_prone and hazard_type tags should replace </span>the flood_prone=yes tag that is presently used.<br>
<br><div><span style="font-style:italic;color:rgb(0,0,191);font-weight:bold">Pierre <br></span><br><blockquote style="border-left:2px solid rgb(16,16,255);margin-left:5px;margin-top:5px;padding-left:5px"> <div style="font-family:arial,helvetica,sans-serif;font-size:10pt">
<div style="font-family:times new roman,new york,times,serif;font-size:12pt"> <div dir="ltr"> <font face="Arial"> <hr size="1"> <b><span style="font-weight:bold">De :</span></b> nicolas chavent <<a href="mailto:nicolas.chavent@gmail.com" target="_blank">nicolas.chavent@gmail.com</a>><br>
<b><span style="font-weight:bold">À :</span></b> Mike Dupont <<a href="mailto:jamesmikedupont@googlemail.com" target="_blank">jamesmikedupont@googlemail.com</a>> <br><b><span style="font-weight:bold">Cc :</span></b> william skora <<a href="mailto:skorasaurus@gmail.com" target="_blank">skorasaurus@gmail.com</a>>; <a href="mailto:hot@openstreetmap.org" target="_blank">hot@openstreetmap.org</a> <br>
<b><span style="font-weight:bold">Envoyé le :</span></b> Jeudi 6 septembre 2012 17h42<br> <b><span style="font-weight:bold">Objet :</span></b> Re: [HOT] Senegal - Dakar Flooding Activation<br> </font> </div><div class="im">
<br>
Hey there-<div><br></div><div>Back from Senegal a couple of days ago and will blog soon around the TechCamp, the flooding and the status of OSM there</div><div><br></div><div>First
thanks to all those who contributed to this response: the progresses of
the map are important and your work had a strong impact down there
amongst the TechCamp participants as well as among GISers I met from the
UN, Gov Agency, Academics and Techs. Furthermore it fostered the
remobilization of the nascent Senegalese OSM community by heating things
up. </div>
<div><br></div><div>A few point on this tagging thread.</div><div><br></div><div>* highway values most likely to be used and fit for these areas of Dakar, I'd like to echo Will and others on <i>residential</i>, and strongly support Jaakko's views on <i>path </i>(vs
footway) which seems well suited for the most narrow streets. I would
refrain when mapping remotely to use living_street which calls for
on-the-ground knowledge and de facto right of way between vehicle and
pedestrians. This is a tag to better explain/ portray and push to the
mappers down there. More generally, with Jaakko, Brian and Sev we feel a
need to better articulate guide on using highway values below tertiary
in developing countries.</div>
<div><br></div><div>* surface values: I would use from the imagery <i>paved/unpaved</i>, a great deal of unpaved roads in Pikine and Guediawaye are <i>sand</i></div><div><br></div><div>* On the squares/ piazzas, I feel like Harry and would refrain from tagging them leisure=<i>pitch/ playground</i> and/or <i>parking</i> since
those uses are really changing over time in the course of the day.
Those usages also apply to a good deal of streets where as a kid, I
learned playing street soccer and hanged out for long hours in wedding/
funerals and later party. I would then stick to Harry's call: <span style="color:rgb(34,34,34);font-family:arial,helvetica,sans-serif;font-size:13px">highway=pedestrian and area=yes + </span><span style="color:rgb(34,34,34);font-family:arial,helvetica,sans-serif;font-size:13px">drawing roads (highway=residential) along the edges of the area</span></div>
<div><span style="color:rgb(34,34,34);font-family:arial,helvetica,sans-serif;font-size:13px"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,helvetica,sans-serif;font-size:13px">*
Flooding related tags. I like the work started by Stephane and think
that it would be worth taking advantage of this flooding to solidify and
generate consensus on the tags</span></div>
<div><span style="color:rgb(34,34,34);font-family:arial,helvetica,sans-serif;font-size:13px">In
the mapping party we held in Dakar last Saturday, we pushed forward the
following tags to map on the ground the worst hit areas in the view of
building a datasest of flood prone points. </span></div>
<div><div>hazard_prone=yes</div><div>hazard_type=flood</div><div>2012:flood_height=</div></div><div>2009:flood_height=</div><div>2007:flood_height=</div><div><span style="color:rgb(34,34,34);font-family:arial,helvetica,sans-serif;font-size:13px">We
will be waiting for satellite imagery processing to get the various
extents (OCHA tasked UNOSAT to carry out such a work with imagery
requested through the Charter)</span>
</div><div><br></div><div>Again thanks.</div><div>Nico<br></div><br></div></div> </div> </blockquote></div> </div></div></div></div></div><br>_______________________________________________<br>
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