On Fri, Jul 17, 2009 at 11:47 AM, Davíð Jakobsson<rimmugy...@gmail.com> wrote: > I have noticed that that many rivers have two ways, one tagged > waterway=river and another tagged waterway=riverbank. My guess is that > originally someone mapped the river and tagged it waterway=river and the > someone else came along and mapped the river more accurately and tagged it > waterway=riverbank. My question is then, shouldn't we delete the way that is > tagged waterway=river where the two ways are overlaided or is there any > purpose to keep them both.
The currently recommended way of doing things is to keep both of them, see this documentation: http://wiki.openstreetmap.org/wiki/Tag:waterway%3Driverbank The reason is that some tools only look at the waterway=river ways while others care about riverbanks (like the mapnik renderer). Of course you might have encountered a river somewhere where someone didn't follow this schema at all and wrongly used one or both of the tags. _______________________________________________ Talk-is mailing list Talk-is@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-is