Hi everyone, 2015-10-07 1:02 GMT+02:00 Warin <61sundow...@gmail.com>: > > I'd like to think anything carrying waste water (sewer) would have a non > permeable lining.. and that lining could be called a 'pipe' and thus it is a > 'pipeline'. > > To me the 'tubes' in my house for carrying water/gas are pipes .. and as > they are a line then they are pipelines!
I'd like to consider the pipeline is almost replacable by its operator. A tunnel, furthermore when it's shielded, carrying water isn't replacable at all and its components aren't pipes at all. Digging rock to get a tunnel is a lot heavier than installing a pipeline. It doesn't have the same environmental footprint too. Ok to say that sewerage facilities are almost pipelines, but sometimes, they are drains or tunnel. 2015-10-09 16:28 GMT+02:00 Bryce Nesbitt <bry...@obviously.com>: > > > 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. I prefer to say that both man_made=pipeline and waterway=* can be standalone to have a meaning instead of the "top level" expression. The extension I propose (I'm not refining any existing values here) isn't only focused on pipeline but on tunnels too. Due to the reasons we talked this week it shouldn't only concern pipelines. > -- > > 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). I would like to map the visible surface features : man_made=pipeline ONLY when the penstock is visible and composed of pipes AND I would like to map the flow of material with waterway=penstock at the same time. A penstock may be a pipeline but water is always flowing inside isn't it ? Cheers François Lacombe fl dot infosreseaux At gmail dot com www.infos-reseaux.com @InfosReseaux > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
