[HOT] [OSM-talk] Mapping high tension power lines in Nepal

Brad Neuhauser brad.neuhauser at gmail.com
Fri May 15 13:35:06 UTC 2015


Francois, I'm aware of all that, I was just mentioning that unusual tag
because it was relevant in the current context. GautamPratik has not made
any changesets since the earthquake (
http://www.openstreetmap.org/user/GautamPratik/history), but maybe you
could send a message so if they do have a chance to get back to mapping
hydropower in the future, you could help them to use better tagging.
Cheers, Brad

On Fri, May 15, 2015 at 5:26 AM, Fran├žois Lacombe <fl.infosreseaux at gmail.com
> wrote:

> Hi,
>
> The power generation model was refined in 2013 and include some
> distinction between a power plant and a power generator.
> It would be convenient and sustainable to take care of this for this
> concern.
>
> http://wiki.openstreetmap.org/wiki/Proposed_features/Power_generation_refinement
>
> Power generator only regard any kind of device which convert energy from
> one sort to another. It should be mapped with power=generator
> http://wiki.openstreetmap.org/wiki/Tag:power%3Dgenerator
>
> Power plant is the whole site and can be mapped with an area or a relation
> if the power plant isn't enclosed with a fence (which is often the case for
> hydro power plant).
> power=plant is the tag currently approved.
> http://wiki.openstreetmap.org/wiki/Tag:power%3Dplant
>
>
> The hydropower_project tag may be redundant with power=plant.
> Currently, it may be useful to map power=plant sites features only.
> Generators are supplementary information only used by specialized mappers.
>
> It would be great to don't use any other custom power=* value to allow the
> largest amount of mapper to work with these datas.
>
> I'll add some in my spare time.
>
> All the best
>
>
> *Fran├žois Lacombe*
>
> fl dot infosreseaux At gmail dot com
> www.infos-reseaux.com
> @InfosReseaux <http://www.twitter.com/InfosReseaux>
>
> 2015-05-14 17:23 GMT+02:00 Brad Neuhauser <brad.neuhauser at gmail.com>:
>
>> Fyi, user GautamPratik already started entering some hydro sites using
>> the tag hydropower_project:name. Here's a search for that:
>> http://overpass-turbo.eu/s/9lJ
>>
>> And one for power=generator generally in Nepal:
>> http://overpass-turbo.eu/s/9lN
>>
>> Cheers, Brad
>>
>> On Thu, May 14, 2015 at 9:03 AM, Steve Bower <sbower at gmavt.net> wrote:
>>
>>> The Nepal Electric Authority would likely already have such a map, or
>>> relevant data:
>>> http://www.nea.org.np/
>>>
>>> Page 106 of their annual plan has a transmission line map:
>>> http://www.nea.org.np/images/supportive_docs/Annual%20Report-2014.pdf
>>>
>>> I did not find anything better in a quick search of their web site, but
>>> they could probably provide something.
>>>
>>> Steve
>>>
>>>
>>> On Thu, May 14, 2015 at 7:26 AM, Jean-Guilhem Cailton <jgc at arkemie.com>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> As you may know, helicopters play a critical role in bringing help to
>>>> Nepalese people affected by April 25 7.8 earthquake, and May 12 7.4
>>>> aftershock, with roads blocked or made dangerous by landslides and
>>>> unstable terrain.
>>>>
>>>> A USMC helicopter that was taking part in this effort is missing since
>>>> May 12. Other helicopters involved in the search and rescue mission
>>>> report that: "A primary concern for ongoing search and rescue efforts is
>>>> unmarked high tension power lines, which have been reported and bisect
>>>> many of the valleys in the search area".
>>>>
>>>> Some high tension power lines have already been mapped
>>>> (http://overpass-turbo.eu/s/9lx , passed along to those conducting the
>>>> searches). Starting from electrical dams makes it easier to spot them.
>>>>
>>>> If mappers experienced at mapping power lines could give a hand, this
>>>> would be great. (Or others willing to learn, like me :) ).
>>>>
>>>> Bing is available for large parts of Nepal. A focus for current search
>>>> and rescue effort is around Ghorthali (27.7517 N  86.0342 E) from where
>>>> a Nepalese local reported seeing a helicopter crash. But of course high
>>>> tension power lines would also be nice to have for Sindhupalchowk,
>>>> Dolakha and other affected districts (see
>>>> http://kathmandulivinglabs.github.io/quake-maps/).
>>>>
>>>> (Please download and upload OSM data often, in case other mappers work
>>>> on the same theme).
>>>>
>>>> Thanks,
>>>>
>>>> Jean-Guilhem
>>>>
>>>>
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