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The main issue is not closed water tanks. That can be a default in
OSM.<br>
The issue here is how to inform that a storage_tank is open.<br>
Mind you that there is an infinitude of storage tanks types, but for
firefighting, those are almost exclusively made in concrete and are
open for the reasons I stated before.<br>
<br>
In my opinion, the cover=* key is the most adequate in these
situations, because there's no way to define what the roof/coverage
of these storage tanks would be if they had one.<br>
Stating that a an emergency storage tank is covered=no informs that
it can be accessible from above.<br>
If, for example, we state that it has a roof=no, you're defining a
specific kind of covering, when it has none and you have no way to
know if that would be a roof, a tarp, a shed, etc.<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">Às 07:22 de 12/01/2023, Volker Schmidt
escreveu:<br>
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<div>I would say that storage tanks, as default, are closed. So
a man_made=storage_tank in OSM is closed.<br>
</div>
<div>Secondly if a tank is closed (at the top), this is called a
roof. There are fixed roofs and floating roofs.</div>
<div>See as an example this manufacturer's web site: <a
href="https://www.wermac.org/equipment/storage_tanks_vessels_general.html"
moz-do-not-send="true" class="moz-txt-link-freetext">https://www.wermac.org/equipment/storage_tanks_vessels_general.html</a></div>
<div>So this would translate to roof=yes/no/floating/fixed in
OSM speak to indicate that a tank is closed-<br>
</div>
<div>covered=yes would be correct to indicate an open or closed
storage tank under some separate kind of covering structure.<br>
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<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Il giorno gio 12 gen 2023 alle
ore 09:28 Warin <<a href="mailto:61sundowner@gmail.com"
moz-do-not-send="true" class="moz-txt-link-freetext">61sundowner@gmail.com</a>>
ha scritto:<br>
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0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
On 12/1/23 08:28, António Madeira wrote:<br>
> Open tanks are common in wild fires territories, like in
Portugal, and <br>
> I'm probably in Spain and Greece.<br>
Not in Australia.<br>
> They're used by helicopters and firefighters, who depend
on them in <br>
> heavy mountainous regions, where it's impossible or very
difficult to <br>
> get water.<br>
<br>
Helicopters here use rivers, dams, not tank water.<br>
<br>
Firefighting trucks here use tank water, and they have to pump
it out <br>
thought a hose to a nozzle, so contaminates can be a problem.<br>
<br>
> We're talking about water tanks of all sizes and formats,
some of them <br>
> are really huge, which are only used for fight forest
fires, so it <br>
> doesn't matter if they're contaminated.<br>
> For helicopters, they're marked with white and red
stripes, so that <br>
> they can be easily spotted from the air.<br>
> Some of them rely on rain water to be filled, but most
are refilled by <br>
> firefighters with river water or other sources.<br>
<br>
<br>
Tanks here as a first option take rainwater. If necessary then
water <br>
would be trucked in. In remote areas with no population there
are no <br>
tanks so trucks would have to suck water from anywhere. In
rugged remote <br>
areas there are probably no roads!<br>
<br>
Remote areas here with populations have extremely large tanks
for <br>
drinking water... that can be used for fire fighting.
Extremely large = <br>
at least a years water supply with no rain fall.<br>
<br>
><br>
><br>
> Às 05:54 de 11/01/2023, Warin escreveu:<br>
>><br>
>> On 10/1/23 03:49, António Madeira wrote:<br>
>>> Greetings.<br>
>>><br>
>>> There are closed and open storage tanks, and I
think is important to <br>
>>> differentiate them, specially those used by
firefighters and rural <br>
>>> communities to fight wild fires.<br>
>>> The approved proposal for the key covered=*
states "C. denote an <br>
>>> area such as an underground parking lot, a
covered reservoir/cistern <br>
>>> or even such things as an aquarium (e.g., Kelly
Tarlton's, Auckland, <br>
>>> NZ), when the covering is not a man-made
structure that would allow <br>
>>> layer differentiation."<br>
>>><br>
>>> I would like to know what the community thinks
about elaborate that <br>
>>> line a bit more, to include emergency storage
tanks so that people <br>
>>> know it's ok to add covered=* to those
structures.<br>
>>><br>
>>><br>
>><br>
>> Storage tanks around me are all covered, at least all
the one I <br>
>> remember are. This includes ones used or emergency
fire fighting. <br>
>> Uncovered ones would be very rare in my country due
to the <br>
>> possibility of contamination by drowned animals,
dirt, dust, tree <br>
>> leaves and tree limbs. There are probably regulations
about them <br>
>> being covered to prevent the breading of mosquitos!
So would think <br>
>> covered is part of being a storage tank at least
here.<br>
>><br>
>><br>
<br>
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