[Tagging] Removal of "amenity" from OSM tagging

[John Willis]

> On May 28, 2015, at 6:22 PM, AYTOUN RALPH <ralph.aytoun at ntlworld.com> wrote:
> 
> And with this argument for a hierarchical approach we are back to the start point of umbrella tags that cover all possibilities which is 
> 
> landuse=educational as a polygon encompassing the whole area and the whole range of educational facilities.
> 
> using landuse=school excludes universities, colleges, etc  and you would then need other tags landuse=university and landuse=college, which then makes the landuse tagging specific instead of general.
> 
> If we look at http://wiki.openstreetmap.org/wiki/Key:landuse the first sentence is correct "Mainly used for describe the primary use of land by humans."
> so the hierarchical approach should then be something like
> landuse=agriculture... agriculture would then be sub categorised with farmland (worked land for crops), orchard (trees planted for their fruits), vineyard, pasture, etc.
> landuse=residential (could be divided into urban and rural which have totally different infrastructures)
> landuse=commercial
> landuse=industrial
> landuse=educational
> landuse=civic
> landuse=transport
> instead of the myriad of specifics that we now have like landuse=peat_cutting and landuse=salt_pond....these are all sub categories of the primary use of the land.
> I know this has diverted from the main topic here but I wanted to point out the overall usage to highlight how my suggestion fits into the overall picture.
> 

+1 

There are advantages to certain separations (to make it easier on renders), but there are so many very specific land land uses, while whole categories don't have a single tag. 

A hierarchical system has room to accept new tags while keeping everyone on the same level of importance. The downside is when one group or culture sees a whole category in a different way - a primary road in Japan has a completely different meaning than the rest of OSM, for example.

But I prefer the hierarchical system - a flat tag system has good points, but it's so hard to document and learn, and probably to keep renderer a up to date - as a minor change requires a whole new tag, instead of a new sub-tag value. 

Javbw 


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