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

Ilpo Järvinen ilpo.jarvinen at helsinki.fi
Tue Apr 22 22:35:40 UTC 2014

On Tue, 22 Apr 2014, Richard Z. wrote:

> On Tue, Apr 22, 2014 at 10:54:37PM +0300, Ilpo Järvinen wrote:
> > On Tue, 22 Apr 2014, Richard Z. wrote:
> > > Now what is that key:layer anyway? Given that nobody knows or cares how it 
> > > works does it do more good than harm? Do we need it at all?
> > > Or should we make a fresh start with something well defined and deprecate
> > > this mess?
> > 
> > I personally think that only thing that would need to be added/defined, is 
> > sensible defaults for bridges/tunnels (less weight than layer=*) and get 
> > "validators" updated. For some yet to be explained reasons, some people 
> > spread FUD about that being impossible but it's clearly incorrect claim
> > if the implicit default is correctly defined.
> that might actually work, but what is the advantage over a JOSM preset
> with a layer=1 as default?

I don't know about you, but I've never used a preset to add a bridge
It's just adding a single tag which is likely around magnitude faster with 
keyboard than navigating zillions of presets, providing "input" to the 
preset, etc. ...That means the problem remains.


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