I too agree that the same Way should be used for waterway=river and boundary=administrative whenever the boundary is defined by the river. That Way should also be added to a relation for the boundary. If the river has changed course, but the boundary remains in the prior location, then the map should be updated at that point to make two separate Ways.
Having nodes and ways on top of (or really close to) each other is generally much more difficult to edit. On Sat, Oct 15, 2011 at 4:36 AM, Nathan Edgars II <nerou...@gmail.com> wrote: > On 10/15/2011 1:16 AM, Jeffrey Ollie wrote: >> >> I noticed in the past few days that user Alexander Roalter has been >> converting administrative boundaries in the Midwest to relations >> (which I think is good) but in some cases he's combined state and >> county boundaries with physical features, especially rivers. A prime >> example is the eastern border of Iowa and western border of Illinois >> now shares the same ways as the Mississippi River. I personally feel >> that combining administrative borders with other features is not the >> right way to handle the borders - while the boundaries may originally >> have been defined by the river that won't always hold, see the history >> of Carter Lake, Iowa for an example. > > I think I would agree with using rivers in this case, if my assumptions are > correct. That is, if the river shifts slightly in the same channel, the > boundary moves to follow the main flow line (or however it's defined), but > if the river moves to a different channel, the boundary remains. Since any > such major relocation will require more to be changed than a single way, the > boundary is not in danger of being moved incorrectly by anyone who knows > what they're doing. > > Of course this is only true when the boundary is defined to be the center of > the river, rather than a line near one bank (e.g. the Ohio River). > > _______________________________________________ > Talk-us mailing list > Talk-us@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us > _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
