On Mon, Oct 5, 2015 at 4:41 AM, François Lacombe <fl.infosrese...@gmail.com> wrote: > > Currently, I find something missing regarding man_made=pipeline + > substance=water because a pipe carrying water can correspond to many > things in reality. > man_made=pipeline + substance=water + *waterway=penstock* would fill the > lack. >
The problem with man_made + waterway on the same node, is both are top level tags. Here you'd want a refinement tag for pipeline. -- There are two valid but separate goals to keep in mind. Are you mapping the: * Visible surface features * The flow of material Both are valid mapping goals. For mapping the flow you want a continuous link of tags that imply water flow. That penstock comes from a reservoir or weir, passes through a generating station, and exits into a canal which dumps into a river or a sink. That flow could be one way or in the case of storage reservoirs two ways (pumped uphill at low demand times). Equally valid is mapping the surface expression only. Those are pipes sticking up out of the ground (a man made feature).
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