[Tagging] Rivers classification

Daniel Koć daniel at xn--ko-wla.pl
Sun Aug 6 09:26:23 UTC 2017

I was thinking about better rendering rivers on medium and low zoom 
levels of osm-carto and I've found that we lack any classification of 
them - anything bigger than stream is just a river.

There are no suitable tags defined:


and no such tags in database too:


There are some waterway classification systems used in cartography:


but how should we tag them?

"Like a halo in reverse" [M. Gore]

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