[Tagging] advices about multiple values have inaccuracies , between several pages

[Mateusz Konieczny]

Oct 11, 2022, 14:17 by marc_marc at mailo.com:

> Hello,
>
> I find that advices about multiple values have inaccuracies
> between several pages :
>
> https://wiki.openstreetmap.org/wiki/Any_tags_you_like#Syntactic_conventions_for_new_values
> Properties can have a large number of possible values
> my reading : key=yes/no value aren't a propertie, it's the value for another key (for ex asia=yes/no is not a good idea, it's a value for cuisine=asia
>
that refers to various values across different objects, see examples given
(width, name), and is not referring to many values in a given object

though https://taginfo.openstreetmap.org/keys/crossing%3Aisland
is still a property

> 1) never use multiple values in a main key, no tool manages it and it is not a good idea to describe an object with multiple "features
>
there are some tools supporting this

tagging object with two different actually applying features without
;-delimited tags is more likely to work

> 2) Properties can have a large number of possible values
> key with only =yes/no value aren't a propertie, it's the value
> for another key
>
both are properties, ATYL page is just confusing and should be fixed

I added "or can have short list of valid values" there
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