[Tagging] Tagging Digest, Vol 143, Issue 12, water heigth values

[Marc Gemis]

Sometimes the height indication is "variable", see e.g.
https://www.mapillary.com/app/?pKey=1610201245837769 The yellow/black
stripe on the bridge indicates the current available height.

m.

On Mon, Aug 9, 2021 at 7:33 AM Mateusz Konieczny via Tagging <
tagging at openstreetmap.org> wrote:

> Note that it refers not to manual measuring of height but to mapping
> signage.
>
> See say
>
> https://forum.mazury.info.pl/download.php?id=8366&sid=370c6708968b028624b55a39760a0a4a
> for an actual example (from
>
> https://forum.mazury.info.pl/viewtopic.php?p=105915&sid=ba42b95121a1d6f9c9a98f6e8094d3a2
> thread)
>
> In my limited experience they appear to be expecting a normal situation,
> someone on a boat in
> other situation is likely expected to be an expert able to apply a
> correction to a signed value.
>
> Aug 8, 2021, 23:21 by st.niklaas at live.nl:
>
> Hi Mateusz,
>
> It is ea bad idea to make such values. Since there is not a single water
> level straight. Just look at the floods of this year or any canal boxed in
> by locks. If the lock opens you loose water out the canal and it is flowing
> downstreams. It is the same with any river as well. Every bridge should or
> has a water level measurement fixed in the vincinity of the bridge and be
> visible for all captians. Just to be able to see if the vessel could pass
> the bridge or any obstacle safely.
>
> Greetz
>
>
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