[Tagging] Is it possible to have highway=unclassified with ref tag?

Andrew Hain andrewhainosm at hotmail.co.uk
Sun May 6 16:19:09 UTC 2018

The use of the ref tag for highway authority road numbers is controversial in the UK (no road with a signed number would be as low as highway=unclassified). There may be better examples in other countries.



From: Philip Barnes <phil at trigpoint.me.uk>
Sent: 06 May 2018 13:28
To: tagging at openstreetmap.org
Subject: Re: [Tagging] Is it possible to have highway=unclassified with ref tag?

On Sun, 2018-05-06 at 09:41 +0200, Mateusz Konieczny wrote:
> I am pretty sure that it is entirely possible to have
> highway=unclassified
> with officially assigned and posted ref number, but I wanted to check
> whatever my edit on https://wiki.openstreetmap.org/wiki/Tag:highway%3
> Dunclassified
> was correct.

It is certainly possible, in the UK all public highways have a
reference number. For lower classifications these references are used
internally by Local Authorities and the references do not appear on
signs. The consensus is that only references that a visible should use
the ref tag in OSM.

For unsigned references we use official_ref and prow_ref which will not
appear on the standard map but can be rendered on more specialised

Phil (trigpoint)

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