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

[John F. Eldredge]

Layer = -1 is not valid data for a waterway that is on the surface, which by definition is layer 0. It is only valid data on an underground waterway.


On May 2, 2014 7:16:04 AM CDT, Martin Koppenhoefer <dieterdreist at gmail.com> wrote:
> 2014-04-24 0:52 GMT+02:00 Bryce Nesbitt <bryce2 at obviously.com>:
> 
> > If one could simply delete the layer=-1 on a waterway, without
> getting
> > yelled at by validators, then human effort could be directed to
> those true
> > oddball situations (like canals crossing each other) that really
> need
> > detailed tagging.
> 
> 
> 
> why would you want to remove valid detail? Even if it seems redundant
> at
> first glance still it is a kind of confirmation and therefor better
> than an
> implicit default (IMHO).
> 
> cheers,
> Martin
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Tagging mailing list
> Tagging at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/tagging

-- 
John F. Eldredge -- john at jfeldredge.com
"Darkness cannot drive out darkness; only light can do that.  Hate cannot drive out hate; only love can do that."
Dr. Martin Luther King, Jr.