Daniel
At this point we have to organize the data collection. Blocks roads, we need to
establish a way to collect from various sources and update the info.
Jean-Guilhem Cailton started to organize a few hours a go a Skype group to
discuss about routing. It would be good that groups that have the capacity to
gather infos about road conditions take contact with us. I read that WFP is to
make road damage assessment. These infos could be very useful.
Pierre
De : Daniel O'Connor <[email protected]>
À : Dion Houston <[email protected]>
Cc : hot <[email protected]>
Envoyé le : Lundi 27 avril 2015 3h50
Objet : Re: [HOT] URGENT: Need OSMand files for Nepal
So I'm pouring over this information. I guess what I'm missing - what should I
look for to determine how roads, airfields, etc. have been affected by the
earthquake and aftershocks? I work for logisticians, so they're curious how
they would move stuff (air/land/waterways).
A more precise answer is that we don't have that level of information yet
(particularly blocked roads/etc); but as new imagery and others in the field
become available it will start to be collected.
Priorities tend to be road network first, followed by buildings; residential
areas, etc and other requests by organizations on the ground.
I think we've been requested this time to cover some potential helicopter
landing sites, though it's unclear how effective that is (past activations have
captured this, but some have been overgrown, etc by the time people got there -
uh, anyone with a less anecdotal recollection of this, please chime in!).
A good way to preview some of the data is a tool called "overpass turbo".
Some quick examples:http://overpass-turbo.eu/s/91y - landuse=residential
http://overpass-turbo.eu/s/91z - amenity=hospital
http://overpass-turbo.eu/s/91A - amenity=fuel (gas station most of the time)
http://overpass-turbo.eu/s/91B - aeroways (airfields, helipads, etc)
This gives you a preview of what can be done in heavier weight tools with full
data dumps; and the "wizard" makes it fairly easy to query/export/etc.
To help work out what kinds of tags you want to look for beyond the stuff
mentioned in the wiki:https://taginfo.openstreetmap.org/
In terms of damage to those facilities,
http://kathmandulivinglabs.org/earthquake/main may be the best bet for getting
reports; though it won't necessarily focus on the specifics places you are
interested in.
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