[Tagging] "Feature Proposal - RFC - Qanat"

Joseph Eisenberg joseph.eisenberg at gmail.com
Sat Jun 20 18:37:28 UTC 2020

BTW, Arabic is not commonly spoken in Iran (Persia):

The definition on the proposal page is not limited to a particular culture:
there may be functioning examples of such features in the Americas (built
by the Spanish due to influence from Morocco). The definition is based on
particular physical characteristics, which are commonly found mostly in
West and Central Asia and North Africa to be sure:

The tag canal=qanat (+ waterway=canal + tunnel=*) is for "A gently-sloping
man-made underground channel for transporting groundwater via gravity, with
shafts visible from the surface" where:
- The immediate source of water is groundwater (aquifer or well), not a
spring, stream or river
- Water flows by gravity in free flow (not pressurized or pipe flow)
- The channel is underground (minimising evaporation)
- Construction and maintenance is through vertical shafts, which are then
visible on the surface

– Joseph Eisenberg

On Sat, Jun 20, 2020 at 11:24 AM Martin Koppenhoefer <dieterdreist at gmail.com>

> sent from a phone
> > On 20. Jun 2020, at 14:17, Christoph Hormann <osm at imagico.de> wrote:
> >
> > in the sense of using a non-English and non-European term where the most
> descriptive and clear term comes from a non-European language.  We have
> other cases of such tags in OSM but still in a proposal process which is
> dominantly discussed in English this is rare and kind of a litmus test for
> how culturally diverse tagging in OSM can be and if the cultural geography
> of non-European regions can be mapped in the classifications used locally
> just as we are used to doing it in Europe and North America.
> I agree with this, maybe we can make the description even more explicit to
> underline that these are specific features with a specific temporal and
> cultural background and formal solution, not just any underground
> aqueducts. It’s a tag in arab language because it was developed in Persia
> and brought into the territories that “they“ settled/conquered.
> Cheers Martin
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