[Tagging] Question about waterway=pressurized

[Volker Schmidt]

At least the bigger ones of the "botte sifone" around here, are not tubes.
One close-by is made from pre-fabricated concrete caissons. Another one is
several hundred years old, and seams be made from stones and bricks.
We also have many pumping stations where "canals" end and their water is
pumped through pipeline-like tubes into another, typically bigger, canal.
So in that sense we have waterways in pipelines. There are many hundreds of
these around  here. Without them my city would be an island.
So if we review tagging, we need to look at the broader technical picture
and all the components involved.

On Wed, 15 Sep 2021, 02:03 Martin Koppenhoefer, <dieterdreist at gmail.com>
wrote:

>
>
> sent from a phone
>
> On 15 Sep 2021, at 00:56, Kyle Hensel <K.y.l.e at outlook.co.nz> wrote:
>
> I think a tag like tunnel=siphon would be useful for inverted siphons.
> Siphon are distinct from culverts and flooded tunnel, which are currently
> the only defined values of tunnel=* for waterways.
>
> Would it be worth making a proposal for tunnel=siphon?
>
>
>
> as there are siphons and inverted siphons, for clarity it could be
> tunnel=inverted_siphon,
>
> not sure about the property key, these are not actually tunnels, they are
> pressurized tubes. Maybe tunnel is just fine as we’re already used to
> tunnel=culvert?
>
> Cheers Martin
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