[Tagging] layer=-1, rivers, bridges and tunnels

Martin Koppenhoefer dieterdreist at gmail.com
Sat Mar 15 12:28:44 UTC 2014

> Am 14/mar/2014 um 16:36 schrieb Pieren <pieren3 at gmail.com>:
> Real case from real world : a deep ditch where the stream is not
> "underground" but below the "ground" level, is crossing a village
> where we have 10 bridges. Either you add 10 times "layer=1" on the
> bridges or you add 1 time "layer=-1" on the stream.

in a deep ditch the waterway is still on ground level, just that the ground is lower at this point than it is in the surroundings. 

I would advocate for adding layer=1 to the bridges and leave the waterway without layer tag


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