[Tagging] nautical channels

Yves yvecai at mailbox.org
Sat Jun 30 13:36:27 UTC 2018

Bah, if you want to tag the Canale Grande something else than waterway=canal, you have an occupation for years ;)

Le 30 juin 2018 15:18:53 GMT+02:00, Martin Koppenhoefer <dieterdreist at gmail.com> a écrit :
>sent from a phone
>> On 30. Jun 2018, at 14:41, Volker Schmidt <voschix at gmail.com> wrote:
>> The reason I am asking here, is that I detected by chance that
>navigation channels in the Venice Lagoon [1] have been tagged as
>waterway=canal, which to me seems not correct, or at least not covered
>by the wiki definition.
>I have noticed problems with this as well in a map I made in this area
>(1:400.000) this week, what a coincidence. 
>Reading the wiki, it seems in line with the canali tagged like this
>(artificial ones, if there are any), because there is a merely
>functional distinction:
>“An artificial open flow waterway used to carry useful water for
>transportation, waterpower, or irrigation.”
>Somehow the mapnik style always conveyed a hierarchy of scale between
>canal, drain and ditch but there is not anything about this in the
>current wiki article:
>Thinking about it, the Canale Grande should maybe not get
>waterway=canal but waterway=river?
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