[HOT] Mapping task for seismic risk assessment

john whelan jwhelan0112 at gmail.com
Wed Oct 7 22:20:47 UTC 2015


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> 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>
> 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>
>> 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
>>>
>>>
>>> _______________________________________________
>>> HOT mailing list
>>> HOT at openstreetmap.org
>>> https://lists.openstreetmap.org/listinfo/hot
>>>
>>>
>>
>
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