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

Fran├žois Lacombe fl.infosreseaux at gmail.com
Fri May 15 10:26:21 UTC 2015


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

Power generator only regard any kind of device which convert energy from
one sort to another. It should be mapped with power=generator

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.

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
@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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