2014-07-09 15:40 GMT+02:00 Tod Fitch <t...@fitchdesign.com>: > > > Which I, as a mapper more interested in roads and trails, ignore as I > don't know what to put there and I'd rather have nothing than something > that is wrong. >
You're absolutely right. JOSM ask for voltage to encourage users to look for it. If they don't know they'd rather ignore such warnings. And the power=line object will be left without voltage=* for a while and other mappers (like me) can complete it later. > Many of the larger power lines (in a physical sense if not an electrical > power sense) on large metal pylons are visible on satellite imagery, but > their voltage isn't. So an "arm chair mapper" can show the location but not > the voltage. > Arm chair mappers can look on public grid maps. In France we can have such information on government's web pages. http://wiki.openstreetmap.org/wiki/WikiProject_Power_networks/France#Cartes_RTE_.C3.A0_l.27.C3.A9chelle_r.C3.A9gionale When hiking or driving I can see the local "power poles" and sometimes > guess if they carry power or communications cables or both. And I can see > and make the distinction between a power line that is on large metal pylons > and others. Since some of these items are really useful as navigation > landmarks in undeveloped areas, I map them as I can. But that mapping will > never include voltage, whether it is AC or DC, etc as I don't know and have > no easy way to find out. > The problem is the distinction you make. It won't be the same as your colleagues or neighbours. And no one in OSM will be aware of that. I don't have a clue to what the most power=minor_line objects correspond to exactly. One more thing : The proposal provides another definition for towers/poles. They're not used with voltage distinction any more. Then, if a line is carried by *heavy metal towers*, OSM will use *power=tower* + design=* and if it is carried by *small poles*, we'll have *power=pole* in the DB. All the best *François Lacombe* francois dot lacombe At telecom-bretagne dot eu http://www.infos-reseaux.com
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