Hi, I have a micromapping question. If I want to draw a traffic_calming=island area, should I map the painted area or the “physical” area? en.wikipedia says: " A traffic island is a solid or painted object in a road that channels traffic", but since sometimes we have other conventions I prefere to ask. Also we could update the OSM wiki to make it clear.
In case mapping the painted area is the correct option, is there a way to map the physical one as well? I was thinking of barrier=kerb closed way but I read is to be used only for sidewalks, which is not the case.
A kerb is the edge where a road meets a sidewalk.
and Tag the node node on the highway=footway, highway=cycleway, or highway=path
made me think it can’t be used for traffic islands which are not pedestrian/bicycle crossings like this one.
By all means: if it’s a kerb, use barrier=kerb + kerb=*. A kerb is a kerb.
In Germany, we also have kerbs directly on the road sometimes, in order to have vehicles going over it forfeit their right of way. So yes: it’s perfectly fine to use it on any part of the road.
Considering what you wrote, in this case (when there’s a solid area inside of a larger painted area), I therefore propose to map the painted area as traffic_calming=island and the physical one as barrier=kerb + kerb=*.
if there’s consensus I could edit the Tag.traffic_calming=island wiki page adding this tagging schema. Let me know everyone (you can add a or if you don’t want to comment).
To me, the kerb is just the physical border where the footway and the street meet. So a footway crossing a traffic island usually has two kerb barriers:
A kerb is the edge where a road meets a sidewalk.
and Tag the node node on the highway=footway, highway=cycleway, or highway=path
made me think it can’t be used for traffic islands which are not pedestrian/bicycle crossings like this one.
I see, I was confused by the Kerb - OpenStreetMap Wiki redirect. If kerb=* is for “additional detail” maybe it should redirect to barrier=kerb instead (or the page changed from a redirect one to a disambiguation one).
you could also use =apron for a surmountable elevation, often used at roundabout paved inner circle, where the hgv combination last wheels need to take it, to make the curve. truck apron.
On the inside or outside of a curve.
area:highway=* is additionally used to describe the shape of linear features tagged as highway=*.
But traffic_calming=island isn’t a highway=* tag and also it’s already possible to map it as an area, so I don’t really see the point of it in this specific case.
EDIT: By the way, I also found this: Tag:traffic_calming=painted_island… It’s so confusing, also because all these elements aren’t linked to each other in the Wiki. I added a reference to them in the Tag:traffic_calming=island “See also” section.
As far as I can tell, the tag is only being used for islands that are physically raised, but also have an additional painted area around them. This explains why the two carriageways are split at the point of the traffic island.
or 
if you don’t want to comment).
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