Throwing out my ideas... Disclaimer: These are generic proposals for pipeline sub-tagging with example values for illustration. I do not want to derail this towards water/drinking_water and multi-values (semicolon or namespaced). ;)
I propose 3 keys: use/purpose (as main subtag), state/phase and substance/name. pipeline:use = * or pipeline:purpose = * values limited to list eg.: drinking_water, wastewater/sewage, drain/irrigation, transport/transmission, heating, coolant, industrial, communication... [IMO this is the most interesting data to be rendered or externally used: the intent of the pipeline] May clash or need to be merged with the tag for pipeline: usage = * (currently very specific and oil&gas oriented). Then additionally, because it can be informative and described with fixed values substance:state = * or substance:phase = * values limited to list eg.: gas, liquid, solid (cables), slurry (=liquid+solid particles), multi (=multiphase, mostly gas and liquid, possibly particles) Then, a bit of freedom with free-form value (possibly multi-values): substance:name = *, eg.: water, fresh_water, grey_water, steam... natural_gas, oil... chemical... cables, optic_fiber...
_______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
