> > the problem has more causes. But mainly people got used to use the > layer=-1 as > a cheap trick to hide all kinds of pesky keepright/JOSM warnings about > missing > bridges, incorrect crossings, waterway crossing waterway and a few more. > The problem would also go away if validators would detect this abuse. >
I see the *core* of the problem as validator warnings about crossings of rivers and ways. That goes for JOSM and KeepRight at least. There's a sensible default assumption (the waterway is culverted under the way) that serves pretty darn well. If one could simply delete the layer=-1 on a waterway, without getting yelled at by validators, then human effort could be directed to those true oddball situations (like canals crossing each other) that really need detailed tagging. --- Thus the proposal: swap the validator warning about way crossing, with one about inappropriate use of level.
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