[talk-au] Tasmanian transmission line import

[Charles Gregory]

Hi everyone,

I've received a KML of all of Tasmania's high voltage transmission lines
from a representative of Transend Networks, with no restrictions on their
usage, so I am free to upload these into OSM.

At the moment in OSM, some lines already exist and include towers (sourced
from bing imagery), some only have towers (most likely due to redaction),
and some lines are not marked at all.

The KML file includes only lines - not towers - they have a license for the
tower information - while it costs nothing, it can not be re-distributed.

I could
1) Delete the existing data and replace with 100% official data, but then
the tower information would be lost.
2) Only replace the missing lines, but then there would be inconsistencies
(some with towers, some without).

What is the preferred option?   I'm tending to go with the second option,
since from a brief inspection, the existing OSM ways are pretty accurate
when compared with the official data.  So long as the sources for each line
are accurate it shouldn't be too much of an issue.

Regards,

Charles Gregory
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