Drag lift is more generic - both t-bar and platter (and rope_tow) are
subtypes of drag lift. The distinction between t-bar, platter and
rope_tow is very important to some people (particularly inexperienced
skiers). In some areas like Austria the t-bar is more popular whereas in
France you see only platters. 

Colin 

On 2014-01-22 17:47, [email protected] wrote: 

> So, why we have platters, and why it is recommended on iD editor ? And what 
> is the utility of t-bar, because it's a platter with 2 persons, so 
> aerialway:occupancy=2, no ?
> 
> I can't understand why it is duplicate. It's not good... 
> 
> 2014/1/22 Martin Koppenhoefer <[email protected]>
> 
> 2014/1/22 [email protected] <[email protected]>
> I think we can delete aerialway=drag_lift of Openstreetmap's wiki because 
> it's a duplication of platter. Same thing for t-bar, for 2 places platters, 
> we have the tag aerialway:occupancy=2, which is not easily parametrable in iD 
> editor. 
> 
> According to taginfo, aerialway=platter is used much fewer than drag_lift and 
> t-bar is almost at par with platter. The proposal states that this is only to 
> be used for "Platter lift [1], similar to a t-bar, but with a disc instead of 
> a bar. Single-person only. "
> http://wiki.osm.org/wiki/Proposed_features/Piste_Maps [2]
> 
> http://taginfo.openstreetmap.org/keys/aerialway#values [3]
> 
> drag_lift [4] 
> 
> 4 830 
> 
> platter [5] 
> 
> 1 471 
> 
> goods [6] 
> 
> 1 217 
> 
> t-bar [7] 
> 
> 1 206 
> 
> so NO, DO NOT DELETE the mentioned values from the wiki!
> 
> cheers,
> Martin 
> _______________________________________________
> Tagging mailing list
> [email protected]
> https://lists.openstreetmap.org/listinfo/tagging [8]

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Links:
------
[1] http://en.wikipedia.org/wiki/Platter_lift
[2] http://wiki.osm.org/wiki/Proposed_features/Piste_Maps
[3] http://taginfo.openstreetmap.org/keys/aerialway#values
[4] http://taginfo.openstreetmap.org/tags/aerialway=drag_lift
[5] http://taginfo.openstreetmap.org/tags/aerialway=platter
[6] http://taginfo.openstreetmap.org/tags/aerialway=goods
[7] http://taginfo.openstreetmap.org/tags/aerialway=t-bar
[8] https://lists.openstreetmap.org/listinfo/tagging
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