[Tagging] Classifying roads from Trunk to Tertiary and Unclassified

Peter Elderson pelderson at gmail.com
Sun Aug 11 18:34:40 UTC 2019

I'm sure the hierarchy
trunk/primary/secondary/tertiary/<something_else>/residential with a side
of service types is general enough that all countries can map their own
system to it. I feel no need to force any country's own system upon any
other country, or to make it the same all over the world.

If mapping tools map "dunno" to highway=road and <something_else> to
highway=unclassified, I would applaud that. If renderers would consider
mapping quaternary same as unclassified, I would applaud that. If this list
could reach consensus for this preferred tagging and some commitment to
getting it straight in a few OSM-significant countries, I'm sure renderers,
mapping tools and checking tools will consider implementing it.

Vr gr Peter Elderson

Op zo 11 aug. 2019 om 19:40 schreef Paul Johnson <baloo at ursamundi.org>:

> On Sat, Aug 10, 2019 at 3:26 AM Joseph Eisenberg <
> joseph.eisenberg at gmail.com> wrote:
>> trunk - connects cities to cities ("National Roads")
>> primary - connects a town to a city or another town
>> secondary - connects a village to a town/city or another village
>> tertiary - connects a hamlet to a village/town or another hamlet
>> unclassified - connect farms / isolated dwellings to a hamlet/vilage
>> or another farm.
> I'm pretty sure NE2 already tried forcing this once and it went
> approximately nowhere because it turns out there's more country-to-country
> nuance than that.
> I'm all for adding additional and country-specific tags for highway, so
> that these British-specific ones can continue to work there and I'd be open
> to, say, getting highway= values like freeway, expressway, urban_arterial,
> etc, that map nicely to the US.  But, trying to remap the consensus to
> existing British-specific tag values is going to be a harder battle.
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