[Tagging] Feature Proposal - RFC - Substation Refinement

François Lacombe francois.lacombe at telecom-bretagne.eu
Sun Sep 1 21:18:55 UTC 2013

Common users would also see concrete masts supporting power cables,
communication wires and TV lines.
What should they think first ? power, communication or TV ?

In France, many public entities are using medium voltage power poles to
roll out optical fiber.

Using man_made to identify poles and power, communication, TV, whatever to
tell what's on it has much sense.

Nevertheless, can't we find a better way to identify transformers as a pole
feature ?
Using something like pole:transformer=yes would allow to introduce other
feature (like pole:switch not to mention) and to be consistent to
transformer=* (type of transformer) described in your proposal.

Example :

*François Lacombe*

francois dot lacombe At telecom-bretagne dot eu

2013/9/1 Ole Nielsen <on-osm at xs4all.nl>

> On 01/09/2013 19:04, François Lacombe wrote:
>> 2013/8/30 Ole Nielsen <on-osm at xs4all.nl <mailto:on-osm at xs4all.nl>>
>>     Agree, the transformer is just a feature of the pole. I wouldn't tag
>>     it as a substation.
>>     According to
>>     http://wiki.openstreetmap.org/**__wiki/Proposed_features/__**
>> Substation_refinement<http://wiki.openstreetmap.org/__wiki/Proposed_features/__Substation_refinement>
>>     <http://wiki.openstreetmap.**org/wiki/Proposed_features/**
>> Substation_refinement<http://wiki.openstreetmap.org/wiki/Proposed_features/Substation_refinement>
>> >
>>     that is indeed how to do it. I see no problems in having an
>>     alternative tagging of the transformer since the power key is
>>     already used for the pole. For retrieval it is only slightly more
>>     complicated than just searching for power=transformer.
>> It's already used for the poles but don't you think it's transformers
>> which deserve the most the usage of power=* ?
> In this case no.
> From an electrical viewpoint the transformer is of course important.
> However, is this the most important aspect for the average user? You see a
> pole in a row of poles and this particular one happens to have some kind of
> lump attached to the top. It may be useful to tag this fact for
> navigational purposes but it is otherwise of doubtful use. Very few users
> will be interested in the details of that transformer or its connections to
> the grid. Even when I'm interested in power grids myself I don't find the
> lower voltage distribution grids particularly interesting. Furthermore, it
> is mostly impossible to map the distribution networks to any degree of
> completeness due to undergrounding etc. Thus I can't see much need to
> develop an elaborate tagging for this reason especially if it is not
> compatible with the existing tagging practice. However, the average mapper
> may still want to tag the transformer as an interesting feature of the
> pole. An additional attribute tag (transformer=yes/*) will be sufficient
> for that and it won't break anything. Data consumers can easily extract
> this information if they need to.
> Ole
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