[Tagging] oneway=yes on motorways

[Volker Schmidt]

PS: The standard rendering assumes junction=roundabout, highway=motorway,
and highway=motorway_link to be oneway=yes by default
(https://github.com/gravitystorm/openstreetmap-carto/pull/1363)

On Sun, 24 May 2020 at 22:26, Volker Schmidt <voschix at gmail.com> wrote:

> I just noticed an apparent contradiction regarding the use of the oneway
> tag between the wiki pages key:oneway
> <https://wiki.openstreetmap.org/wiki/Key:oneway> and motorway
> <https://wiki.openstreetmap.org/wiki/Tag:highway%3Dmotorway> .
> The former states:
> "Some tags (such as junction
> <https://wiki.openstreetmap.org/wiki/Key:junction>=roundabout
> <https://wiki.openstreetmap.org/wiki/Tag:junction%3Droundabout>, highway
> <https://wiki.openstreetmap.org/wiki/Key:highway>=motorway
> <https://wiki.openstreetmap.org/wiki/Tag:highway%3Dmotorway> and others)
> imply oneway=yes and therefore the oneway tag is optional,
> the latter states:
> "These ways should all point direction of travel and be tagged with oneway
> <https://wiki.openstreetmap.org/wiki/Key:oneway>=yes"
> <https://wiki.openstreetmap.org/wiki/Tag:oneway%3Dyes>
>
> What is the agreed standard, if any?
>
> Volker
>
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