[Tagging] Trailhead tagging

Tobias Wrede list at tobias-wrede.de
Sat Jan 5 11:21:41 UTC 2019

Am 04.01.2019 um 18:18 schrieb Peter Elderson:
> Let's agree to agree!
> Op vr 4 jan. 2019 om 16:52 schreef Kevin Kenny 
> <kevin.b.kenny at gmail.com <mailto:kevin.b.kenny at gmail.com>>:
>     On Fri, Jan 4, 2019 at 8:30 AM Peter Elderson <pelderson at gmail.com
>     <mailto:pelderson at gmail.com>> wrote:
>     > I'm trying to go for the minimal tagging that supports the most
>     of the use cases. Which is a node tagged highway=trailhead. It's
>     up to mappers / communities if and how they will apply and embed
>     that according to local, regional or country-specific needs or
>     definitions. Or maybe decide it's not useful in that situation at all.
>     If the definition is "a designated or customary place where a trip on
>     a trail begins or ends," I'm entirely on board.
I'm perfectly fine with this. Now an open question is still where to 
place this tag and how to combine it. The stalled hw=trailhead proposal 
specifically suggests to place a trailhead node alone or on a piece of 
highway: "A trailhead should be mapped as a node or a node that is part 
of a trail segment (i.e.,highway 
<https://wiki.openstreetmap.org/wiki/Tag:highway%3Dpath>) and should be 
tagged primarily as highway 
At least I would rephrase that to something along "... or a node that is 
part of the trail segment or a highway leading to its trail(s)."

More problematic is the question of combination. I'm pretty much opposed 
to giving this object two top level keys: highway=trailhead and 
tourism=information. I think the thought of theĀ  old proposal was to 
mark the point on a trail where to access it, hence hw=. Peter was more 
going in the direction of marking the point where we find information on 
how to access the trail (name, information board, sign, stele, ...), 
hence tourism=information + information=.

I would still try to separate the elements. We leave it with 
hw=trailhead + possibly a name + possibly including it in the route 
relation for the actual access point. Additionally, we map the 
amenities: information board, parking, toilets, picknick site etc. I'd 
welcome introducing something like tourism=information + 
information=trailhead or tourism=information + information=board + 
board_type=trailhead. Since a trailhead could be marked by other objects 
than a board the former might be more universal.

For the dutch case that would mean removing the hw=trailhead from all 
the points and changing the tourism=... to something new we agree on.


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