[Tagging] Stormwater outlet into stream
ethnicfoodisgreat at gmail.com
Thu Sep 20 11:53:16 UTC 2018
> From: Jonathon Rossi <jono at jonorossi.com>
> To: "Tag discussion, strategy and related tools"
> <tagging at openstreetmap.org>
> Subject: Re: [Tagging] Stormwater outlet into stream
> <CAGb9TQJ=bTtXt-HgRuwQSGX0o9=KV2fZzfya1UG6D8mnbRvaqw at mail.gmail.com>
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> Thanks everyone. Apologies in advance for the long reply.
> @Graeme I see you tagged the node with
> man_made=drain_outlet+substance=rainwater. In your example it makes sense
> to map the underground pipe because you know exactly where it is, but I'd
> hate for these to start rendering in the future and bits of incomplete
> pipes (a few metres long) start showing up drawing over streets.
> The wiki for man_made=pipeline
> <https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dpipeline> says it is
> meant for "major" pipelines, which these aren't really apply:
> By using pipeline are we abusing that tag? Dictionary.com's definition of
> pipeline also indicates that a network of pipes isn't a pipeline. I too
> don't view the reticulated water network of pipes a pipeline, however there
> would generally be a pipeline going from a water treatment plant to a water
> reservoir/storage tank; and in the same way the network of sewerage drains
> aren't a pipeline, but you could have a pressurised or gravity pipeline to
> move sewage to a treatment plant.
> Mark's suggestion to use man_made=sewer didn't sound right to me because I
> always view sewers as for wastewater which must go to a treatment plant
> before entering waterways. Dictionary.com seems to agree, the values for
> manhole=* <https://wiki.openstreetmap.org/wiki/Key:manhole> also agree, this
> OSM tagging proposal also agrees
> however Wikipedia seems to indicate some people refer to stormwater drains
> as sewers too, this might be a location thing because I found some
> indication that some cities have a combined waste and rain water drain
> (these obviously won't directly connect to a waterway).
> substance=rainwater;sewage works though.
FWIW, I worked in the highway construction business for 14 years in the
US. In the industry terminology where I was, a "pipeline" carrying
wastewater to a treatment plant was termed a sanitary sewer, and a
pipeline carrying stormwater (rainwater) was called a storm sewer.
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