Interesting question. I do have do navigable canals that can have the water flow in either direction, under operator control. I think there must be many of them. I so far have not bothered about the flow direction, as boat traffic goes both ways independently of the actual flow of the water, but you have a point here.
Volker Padova, Italy On 28 April 2012 11:24, Nathan Edgars II <nerou...@gmail.com> wrote: > It's the standard to draw a waterway in the direction of flow. I've > questioned this several times, but it's an ingrained default. > > My question is more specific: what happens to a drainage canal that > reverses direction? I offer the Everglades and surrounding agricultural > land as an example. There are huge "water conservation areas" that store > water. When it rains, gates are closed and opened to direct water into > these. During a drought, gates send water back out into the canals for > local use. When there's a big storm, water will instead go directly out to > sea. > > So there are a lot of major canals that have no fixed direction. How > should these be mapped? Is there any existing scheme that can show how > water flows under different conditions? > > ______________________________**_________________ > Tagging mailing list > Tagging@openstreetmap.org > http://lists.openstreetmap.**org/listinfo/tagging<http://lists.openstreetmap.org/listinfo/tagging> >
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