[Tagging] key covered=* applied to storage tanks

[Warin]

On 13/1/23 03:02, António Madeira wrote:
> The main issue is not closed water tanks. That can be a default in OSM.
> The issue here is how to inform that a storage_tank is open.
> 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.


They may be concrete where you are, where I am they are usually 
corrugated steel. Plastic ones also exist but they are smaller and in a 
fire they melt to the water line. Large concrete tanks exist here too, 
but they too are covered.

>
> 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.
> Stating that a an emergency storage tank is covered=no informs that it 
> can be accessible from above.
> 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.


All the tanks on the OSM wijki page for man_made=storage_tank are 
covered ..

https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dstorage_tank