[Tagging] key:drinking_water for OSM ways

[European Water Project]

Hi Martin,

There are a couple of issues I see with drinking_water=yes not having a
concept of access.

1. Where is the observability  ? How can I know if a water tank has
drinking quality water or just agriculture quality water ?
>From the wiki :
"One can assume that the water is pure when many people drink it every
day."
This is hard to assume, and one would never know if there is water ...

2.   But there is an even bigger issue --- and I will admit that I am
biased because of the European Water Project's use case.
For a map feature to be useful, it should have universality. Ie. if one
maps restaurants with toilets, at least customers should have access ...
Someone who goes to the OSM way where there is a water tank, even with a
wallet full of cash, will die of thirst before getting a drink.
It's similar to toilet=yes ...   A restaurant with a toilet for employees
only, probably shouldn't have the tag.
Yes, there is an access tag, but in most cases access is implied.

drinking_water = yes, seems to come with access in 99% of the 61,300 nodes
and the large majority of the 8,178 ways.

Best regards,

Stuart






On Thu, 20 Feb 2020 at 19:33, Martin Koppenhoefer <dieterdreist at gmail.com>
wrote:

> Am Do., 20. Feb. 2020 um 19:14 Uhr schrieb European Water Project <
> europeanwaterproject at gmail.com>:
>
>> Dear All,
>>
>> I have noticed that the the key drinking_water = yes for ways is
>> sometimes used in a manner not described in the wiki.
>>
>> https://wiki.openstreetmap.org/wiki/Key%3Adrinking_water
>>
>> The issue has to do with ways which might store drinking water which is
>> not actually directly accessible.  I think this tag should be for
>> accessible water.
>>
>
>
> I don't read from the wiki description that the drinking water must be
> directly accessible. It depends on the context feature.
>
> Cheers
> Martin
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