[OSM-newbies] Electricity Pylons

[Matt Williams]

2009/8/31 Nick Austin <nick.w.austin at gmail.com>:
> On Mon, Aug 31, 2009 at 12:49 PM, Dave F.<davefox at madasafish.com> wrote:
>> Hi
>>
>> I noticed that one of the landscape features that appears to be most
>> missing from the UK is the runs of electricity cables & pylons, which
>> seems a shame seeing their height are useful for getting your bearings.
>> I suppose the reason is that many are hard to get a location for.
>
> Most power lines can be traced from NPE (the out-of-copyright
> background in Potlatch).
>
> Whenever I'm mapping and cycle under a power line I take waypoint and
> an approximate compass bearing.  That way I can check that the NPE
> information is correct (and align it more precisely).  If the line is
> missing from NPE I use the compass information to draw short 'stubs'
> (about 1/4 mile long) either side of the road or path.  Once there are
> enough stubs in the same area these can be joined together to form
> long lines.

Indeed that works. It's also a fair assumption that there'll be a
pylon anywhere the powerline line on NPE changes direction :)

-- 
Matt Williams
http://milliams.com