I must comment here as I believe those two tags describe a situation quite common in Alaska. Many many smaller waterways cross under a highway in a special large diameter pipe called a culvert. The water flows through the culvert, both are below the roadbed and consequently they do not share or should not share any nodes. I map them using tunnel=culvert and the additional tag of layer=-1. The situation is exactly analogous to when a waterway flows under a bridge except in this case the bridge gets a layer=1 tag. A railway level crossing is quite different because the two ways do cross on the same layer. Here tagging a node is correct.
I cannot think of a situation where one would tag a culvert as a node unless it's to indicate an entrance to a very long, invisible culvert. My 2 cents. On Sun, Oct 25, 2015 at 7:12 PM, Georg Feddern <o...@bavarianmallet.de> wrote: > Hello, > > Am 25.10.2015 um 11:44 schrieb Gerd Petermann: > > I do not fully agree here. In Germany, I often see a traffic sign > "Vorsicht Düker" > > (~ "Attention! Culvert") next to these culverts. > > I am not sure why I should pay attention, but it seems that some > > people think that the traffic on the road should notify it. > > Maybe because it also often means that there is a > > barrier=fence along the road. > > > In fact I thought that these signs are the explanation for the > > use of tunnel=culvert on a node. > > > please be careful: > A "Düker" is not a normal "culvert"! > At a culvert the water is flowing on the same level in the culvert, > normally with airy room above water level in the culvert. > At a "Düker" the water is "pressured" on a level below the normal water > level through the "Düker", so there is no room above water level. > The normal road traffic has not to obey these sign - but any street work > or use (crawling ;) ) at the waterside. > > Georg > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > > -- Dave Swarthout Homer, Alaska Chiang Mai, Thailand Travel Blog at http://dswarthout.blogspot.com
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