[HOT] Identification of Communication towers

Blake Girardot bgirardot at gmail.com
Sun Mar 15 13:31:22 UTC 2015


Ya, that is kind of what I had in mind. It is a good question that was 
asked, I have been trying to think of some more features that could use 
some short example guides and towers are perfect for that and are needed.

Cheers,
Blake




On 3/15/2015 2:12 PM, Mikel Maron wrote:
> We could make a quick tracing guide for these towers. Just need a few
> clipped screenshots of the imagery, and help text.
>
> Would put it together in something like this:
> http://hotosm.github.io/tracing-guides/guide/kulna.html
> http://hotosm.github.io/tracing-guides/
> -Mikel
>
> * Mikel Maron * +14152835207 @mikel s:mikelmaron
>
>
>
> On Sunday, March 15, 2015 9:03 AM, Blake Girardot <bgirardot at gmail.com>
> wrote:
>
>
>
>
>     Hi Martin,
>
>     These are challenging to spot and hard to tag correctly without local
>     knowledge I just discovered.
>
>     http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dcommunications_tower
>
>     I usually find towers by seeing the shadow they cast, that is the big
>     indicator to me.
>
>     Here are a few examples in the region:
>
>     https://www.openstreetmap.org/#map=19/-21.90198/166.072485
>
>     If you look very carefully at the shadow you can see the microwave
>     transceiver drums in the shadow. I would guess that is what helped the
>     person identify this one as a "communications" tower specifically.
>
>     ----------------------------
>
>     https://www.openstreetmap.org/#map=19/-20.748846/167.262194
>
>     That one again, shows the shadow being a pretty big factor. And it also
>     show a typical service road and pad. I do not know how the mapper knew
>     it was a communications tower.
>
>     ------------------------------
>
>     https://www.openstreetmap.org/#map=19/14.977132/120.52743
>
>     Shadow and microwave drums visible
>
>     -----------------------------------
>
>     https://www.openstreetmap.org/#map=20/15.011183/120.532604
>
>     Shadow and service area fenced off.
>
>     ----------------------------------
>
>     https://www.openstreetmap.org/#map=19/15.097711/120.611481
>
>     A nice big TV transmission tower.
>
>
>     I hope those help!
>
>     Cheers,
>     Blake
>
>
>
>     On 3/15/2015 11:37 AM, spatialbits wrote:
>      > Hi hotties,
>      >
>      > as part of tasks #944/943 (Vanuatu) mapping of Communication
>     towers is
>      > requested.
>      > Could someone point me to an example in the imagery (e.g.
>     lat/lon), so I
>      > get an idea on what to look for.
>      >
>      > Thanks.
>      >
>      > Martin
>      >
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