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

Dave F. davefox at madasafish.com
Tue Mar 25 12:16:31 UTC 2014

On 14/03/2014 15:57, Pieren wrote:
> You don't see the point where adding one "layer=-1"  is easier than
> adding 10 "layer=1" ?

Not when you could have other entities passing under the bridges.
I see it as lazy & less accurate. Making OSM more accurate is a primary 
consideration when editing

> I see the layer tag in "tunnel/bridge" in simple
> cases but you should not follow all recommendations as fixed in stone.

True, but you should follow the correct ones.

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