[Tagging] Expressway=yes/no versus new tags "dual_carriageway=yes/no", "limited_access=", "grade_separated"=?

[Volker Schmidt]

On Thu, 20 Feb 2020 at 01:41, Joseph Eisenberg <joseph.eisenberg at gmail.com>
wrote:

> I updated the Key:expressway page to have a global focus,
>
> I looked at this. The expressway key is only very rarely used outside of
the US, and there is no need for it outside the US.
It appears sporadically in the UK (some five roads in total)  and in France
(many of these few occurrences are expressway=no on otherwise perfectly
tagged ways)

I would suggest to the contrary, i.e. to state on the wiki page clearly
that this a US-specific tag, not to be used elsewhere.

Volker
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