[Tagging] Straw pole Temperature=objective default unit?

[Warin]

On 9/04/2015 4:49 PM, Andrew Errington wrote:
> There is no regional default if the units are not specified.

Not the default unit, but the default speed limit.  Reference....

http://wiki.openstreetmap.org/wiki/OSM_tags_for_routing/Maxspeed




>
> -- 
> Andrew
>
>
> On 9 April 2015 at 15:42, Warin <61sundowner at gmail.com 
> <mailto:61sundowner at gmail.com>> wrote:
>
>     Sorry .. I have not made that clear ..
>
>     The default speed limit for motorways on OSM  in, say, Australia
>     would be taking regionally, while that for USA would be different
>     and taken for that region?
>
>     See http://wiki.openstreetmap.org/wiki/OSM_tags_for_routing/Maxspeed ?
>
>
>     On 9/04/2015 4:16 PM, Lukas Sommer wrote:
>
>             b) values would interpreted by region. Most of the world
>             would be Celsius, USA would be Fahrenheit. (Similar to
>             defaults for speed on roads.)
>
>         Please note that speed limits are _not_ interpreted by regions.
>         http://wiki.openstreetmap.org/wiki/Key:maxspeed states that
>         the unit
>         has to be added explicitly when it’s not km/h – independent of the
>         region where you are mapping.
>
>         Region-dependent interpretation of units is IMHO a quite bad idea.
>
>         2015-04-09 5:41 GMT, Bryce Nesbitt <bryce2 at obviously.com
>         <mailto:bryce2 at obviously.com>>:
>
>             How it's entered into the database, and how it's
>             displayed, are two
>             separate things.  Humans are messy.  Unless the API starts
>             validating
>             entries, entries will vary in format, even if we
>             officially say that "46 C"
>             is the official format.  But software can parse and
>             normalize numbers.
>
>             That said: temperature=___ is a problematic tag regardless
>             of the
>             formatting of the data.
>
>
>
>
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