[Tagging] Discussion about Multivalued Keys

[Martin Koppenhoefer]

2016-01-28 6:59 GMT+01:00 Warin <61sundowner at gmail.com>:

> Use the layer key?
>
> barrier=fence
> fence=barbed_wire
> layer=0  ... not required
>
> barrier=fence
> fence=wire_electric
> voltage=300
> layer=1
>
> Would need two ways ... messy. Not good.
>


we could use a relation to avoid overlapping ways, something for linear
features, and maybe also something for nodes (e.g. different traffic signs
on the same pole). Using multivalues
There is already a proposal for these:
https://wiki.openstreetmap.org/wiki/Relations/Proposed/Node
The line relation might be expressed as a route (e.g. route=barrier), but
it would be better to allow for non-continuous ways as well (often bigger
barriers tend to have bifurcations and deadends, e.g. the chinese wall).

Cheers,
Martin
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