Richard Z wrote
>In practice this rule is broken more often than you would think: Hamburg >is full >of waterways connected with roads on bridges through a tag obstacle. >France is >full of bridges sharing a node with the waterway bellow.
...
http://www.openstreetmap.org/node/1522876252
I would say this is an example of incorrect mapping and I would correct it if I came across it on survey. It is either a culvert or a bridge, or a ford. A layer tag should not be necessary in any of these three cases. As mapped, the waterway=stream (Way #138911739) runs underground (layer=-1), probably through a culvert given the way the stream left and right are separately outlined as waterway=riverbank (and without layer=*). The way (stream) should be tagged as a culvert. Perhaps there is in reality a bridge not a culvert, in which case the road needs splitting and the appropriate new road segment tagged as bridge=yes. In either case, a layer tag is not needed for rendering. Given the layer tag, it is unlikely that the mapper thought it was a ford. (I don't know whether the cadastre data distinguishes between these features). Fords do not need layer tag, by definition. The solution will be to find and remap such examples. _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
