[Tagging] Tagging problem for a river running in a culvert below a track / wiki votes enforcement
61sundowner at gmail.com
Tue Jan 26 21:14:50 UTC 2016
On 27/01/2016 7:30 AM, Mateusz Konieczny wrote:
> On Tue, 26 Jan 2016 20:14:48 +0100
> David Marchal <penegal at live.fr> wrote:
>>> Date: Mon, 25 Jan 2016 18:26:55 +0100
>>> From: matkoniecz at gmail.com
>>> To: penegal at live.fr
>>> CC: tagging at openstreetmap.org
>>> Subject: Re: [Tagging] Tagging problem for a river running in a
>>> culvert below a track / wiki votes enforcement
>>> I think that photo of this object would be useful to decide how it
>>> should be tagged.
>> Indeed; here comes the picture: http://1drv.ms/1ZQJCxT
>> Hendrikklaas told me by a private message "Simple tagging is
>> tunnel=culvert-bridge and add layer=-1 to avoid crossing conflicts.
>> Or leave it just tunnel=building_passage like you already did just
>> like any other road crossing a building but remember to add layers."
>> Should I consider this as a building?
>> Thank you in advance for your help.
> I would add to path tag bridge=low_water_crossing (documented at
> http://wiki.openstreetmap.org/wiki/Key:bridge ) and layer=1, without
> tagging culverts, without splitting waterway polygon.
+1 to leaving the waterway at level=0 (no tag required as this is the default layer).
> tagging this footway as bridge=low_water_crossing (documented at
> http://wiki.openstreetmap.org/wiki/Key:bridge ), without
> tagging culverts, without splitting waterway polygon, splitting stream
> and tagging part under bridge as layer=-1 is equivalent.
layer=-1 to me says this is below natural ground level. And here that is not the case - the road is above natural ground level and that should be tagged layer=1 .. to be absolutely technically correct.
But many use the layer=-1 on culverts as a convenience of less work.
> I am not understanding where that tag would be applied. What would be
> tagged this way?
The convention it to tag what is inside the tunnel. Similar to a bridge where what is on the bridge carries the tag.
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