On 22/01/2013 08:43, Volker Schmidt wrote:
1) For a non-expert it is difficult to assess how many circuits a power line carries without having access to the operators' documentation.
Right, it will not always be possible to tag the number of circuits when a cable doesn't connect to an overhead power line. For underground cables at low and medium voltage such information is rarely publicly available (but then you probably don't even know that there is a cable there). For high voltage transmission grids the number of circuits is often indicated on grid maps of the TSO or documented in cable project descriptions.
2) I notice that the wiki page uses the term "cable" for overhead power distribution. According to my knowledge and Wikipedia (https://en.wikipedia.org/wiki/Overhead_power_line) overhead power lines are implemented with "conductors". Cables (i.e. insulated conductors) are normally not used in overground transmission.
Again an unfortunate choice of name for a tag that happened in the early days of OSM (like station/sub_station). It should in my opinion have been conductors=*, not cables=*. Difficult to correct now since 'cables' is so widely used.
Ole _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
