[Tagging] Defaults (Re: sidewalks and tagging for the renderer)

Vincent Pottier vpottier at gmail.com
Fri Apr 13 10:17:15 BST 2012

Le 13/04/2012 09:49, Nathan Edgars II a écrit :
> I think we're talking about two different things here.
> (a) An editor (program) automatically applying tags to an object. This 
> is bad, because we don't know whether the mapper has specifically 
> verified this, or whether it's just being assumed and may be false.
> (b) Tags on an area that specify defaults for objects within the area, 
> to be processed by the end-user who downloads the OSM data. This could 
> be good. For example, in Florida, whether bicycles are allowed on 
> sidewalks is a matter for the local government to decide. So it would 
> be useful to specify that footway=sidewalk implies bicycle=no inside 
> city limits, unless otherwise overridden by a tag on the sidewalk way. 
> And you could still set bicycle=no on the ways if you want.
There is a proposal for it :

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