[Osmf-talk] Tagging standards

[Keitaroh Kobayashi]

By the way, I checked with some people in the OSM Japan community, and it
looks like they currently encourage using relations for representing
prefectural or national road status -- for example, there is a national
route 197 that includes a ferry route (
https://www.openstreetmap.org/relation/65441), which obviously wouldn't be
able to be mapped as highway=trunk. (There was some discussion about this
on the Japanese mailing list in 2013:
https://lists.openstreetmap.org/pipermail/talk-ja/2013-May/007340.html )

I think this particular case may be a misunderstanding of current local
mapping rules?
I agree that there should be standards for well-known and heavily used tags
(for example, a mountain path shouldn't be able to be mapped as a
highway=primary or secondary, or a more extreme case of a ferry route being
tagged as highway=primary), but maybe encouraging / requiring more open
discussion and/or authoritative documentation on local rules would be
helpful in reducing misunderstandings like these.

Keitaroh Kobayashi
keita at kbys.me


On Thu, Oct 20, 2022 at 7:50 AM <osm.sanspourriel at spamgourmet.com> wrote:

> > Japan has local rules that _require_ a very rough mountain path near me,
> impassable by any vehicle
>
> In France we came recently to "départementales" ("roads" managed by the
> Département (= Prefecture in Japan) mapped as track or even path.
>
> This was correct indeed: for historical or obscure reasons they were
> probably roads, aren't any more and haven't been given to the commune for
> local management.
>
> So on the map you see the reference of the road (D *, not C *), so the
> "status" but the description of the way is made according to OSM standard.
>
> The way to go for Japan? Thanks to the ref they will be able to map the
> Japanese way and others will do it the usual way, having a normal map.
>
> So there is NO need for Japan to misuse highway tags, they can map
> properly and have their funny/traditional maps based on OSM.
>
> Jean-Yvon
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