[HOT] Mapping task for seismic risk assessment

Blake Girardot bgirardot at gmail.com
Wed Oct 7 22:48:07 UTC 2015


In looking at the osm gps traces and strava gps data, the current bing 
imagery looks quite well aligned to me.

cheers,
blake

On 10/8/2015 12:20 AM, john whelan wrote:
> I think the issue is how can we make this easy for new mappers.  You can
> select multiple buildings in JOSM by downloading the area then select
> buildings, then select an author within the selection then move all the
> buildings by that author at once.  It's not complicated just a pain to
> do if some of the buildings have been corrected already.
>
> Sometimes in OSM its less work to blast everything that is there
> checking the tags first to see its only buildings without additional
> tags then remap than it is to clean up each building.  However that
> approach is generally frowned on in OSM.
>
> May I suggest you freeze this project for the moment and get someone to
> nudge the existing buildings into place then open it up again.
>
> I'm not trying to pour cold water on the project but trying to head off
> a potential mess.
>
> Cheerio John
>
> On 7 October 2015 at 16:28, Joshua Campbell <jcampbell.geo at gmail.com
> <mailto:jcampbell.geo at gmail.com>> wrote:
>
>     John,
>
>     In reviewing the existing building data, you are correct it is
>     shifted. However, the data does not seem to be very accurate.
>
>     In this situation, I'm wondering it makes more sense to
>     double-check, correct, and update that existing data, rather than
>     try to bulk shift it (which I've never done). But I'm open to
>     suggestions on the best way forward.
>
>      >From the imagery perspective, the Bing Imagery analyzer indicates
>     the imagery is from May 2013. The DigitalGlobe archive shows a lot
>     of collection in that area in May 2013, but one scene in particular
>     (Catalog ID: 1030010022C8C400) is quite good. If this is the scene
>     in Bing, then I'm inclined to think the imagery is spatially correct
>     and serves as a good base to map from.
>
>     Regards,
>     Josh
>
>
>
>     On Tue, Oct 6, 2015 at 12:48 PM, john whelan <jwhelan0112 at gmail.com
>     <mailto:jwhelan0112 at gmail.com>> wrote:
>
>         Can some one double check the imagery, many buildings appear to
>         be already mapped but are displaced from the imagery.  Perhaps
>         some one could do a bulk move of the existing buildings?
>
>         http://tasks.hotosm.org/project/1235#task/187
>
>         Thanks John
>
>         On 6 October 2015 at 12:20, Joshua Campbell
>         <jcampbell.geo at gmail.com <mailto:jcampbell.geo at gmail.com>> wrote:
>
>             All,
>
>             Just wanted to announce the creation of a new mapping task
>             in the Kyrgyz Republic focused on seismic risk assessment
>             (http://tasks.hotosm.org/project/1235). The project is
>             funded by the Global Facility for Disaster Reduction and
>             Recovery, managed by World Bank and implemented by ARUP (and
>             partners) and includes seismic risk modeling to better
>             understand and manage earthquake risks.
>
>             The unique element to this task is that the resulting OSM
>             data will be directly integrated into a seismic risk model
>             which will be used by the Kyrgyz Republic Government for
>             decision making on risk reduction and preparedness.
>             Additionally the OSM building data will be assessed on the
>             ground and combined with a unique "streetview" type of
>             imagery data. We hope that some of you can help out with the
>             building mapping for this task, and help us test the
>             methodological advancement of using OSM data for risk
>             assessment.
>
>             Regards,
>             Josh
>
>             ------------------
>             Joshua S Campbell PhD
>             Senior Disaster Risk Management Specialist
>             Innovation Lab
>             World Bank GFDRR
>
>
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