On Fri, Mar 14, 2014 at 04:51:18PM +0100, Pieren wrote: > On Fri, Mar 14, 2014 at 4:45 PM, Richard Z. <ricoz....@gmail.com> wrote: > > > in theory yes. However "nearby" is a problem as rivers can be very long. > > Many people simply tag rivers with layer=-1 without even thinking about > > the fact that the rivers may now collide with tunnels some hundreds of miles > > away. > > In general, we should avoid single ways running over hundreds of > miles. And we have QA tools to detect such issues.
well rivers are thousands of miles long. They don't care about QA tools. > > Furthermore there is a convention that if there is a crossing with a bridge, > > the bridge should have the layer tag and not the way bellow it. Similar > > tunnel. > > For both tunnels and bridges layer is now considered mandatory thus it is > > totally useless to put rivers at layer=-1 unless they are in a tunnel. > > Who decided this and where ? The wiki about bridge says "Bridges > should have a layer=*, ". "should" is not "must". it is a polite "must". There has been a proposal long ago for bridges to have implicit an layer and it was not accepted. Richard _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
