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<div class="moz-cite-prefix">I completely second these arguments:
using power=substation whatever the size of the substation, and
storing other details in other tags.<br>
<br>
In the wiki we could encourage mappers to no longer use
power=station (and power=sub_station if we decide to abandon it as
well), that way we'll slowly migrate to the new tagging
power=substation while maintaining backward compatibility.<br>
<br>
Olivier<br>
<br>
Le 27/01/2013 16:04, Janko Mihelić a écrit :<br>
</div>
<blockquote
cite="mid:CAA=vpS9HamreMHYyfu6KbZDurC6oqb9dGYCXw8MbdpU-iS69PQ@mail.gmail.com"
type="cite">
<div class="gmail_quote">2013/1/27 Martin Koppenhoefer <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:dieterdreist@gmail.com" target="_blank">dieterdreist@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
2013/1/26 François Lacombe <<a moz-do-not-send="true"
href="mailto:francois.lacombe@telecom-bretagne.eu">francois.lacombe@telecom-bretagne.eu</a>>:<br>
<div class="im">
<br>
</div>
-1, don't share this idea. IMHO a completely different
substation<br>
apperance and size, usage etc. are sufficient arguments to
keep<br>
different main entities (classes) in osm. There is no rule
that we<br>
have to have strictly functional classification, and in the
past<br>
mappers had found it useful to have the classes like this.<br>
</blockquote>
<div><br>
History has shown that mappers around the world have been
mapping substations differently, because these two tags are so
vague. They have been mapping power plants with power=station,
big substations with power=sub_station, little substations
with power=station.Why? Because a mapper layman has to know
the difference between a high voltage substation, and a
middle/lower voltage substation to map them correctly. That is
a recipe for faults.<br>
<br>
If you only have power=sub_station, beginners are much more
likely to map correctly. And if they know more, they can put
in a voltage=high;medium;low. But even if they don't, you can
guess which kind of a station it is. If it has
power=sub_station + building=yes, it is probably a middle or
low voltage substation. If the area of the power=sub_station
is bigger than 60m2, then it is probably a high voltage
substation. I think that is much better than to force the
mapper layman to decide.<br>
<br>
Janko Mihelić<br>
</div>
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