On Mon, May 3, 2010 at 12:17 PM, Richard Weait <rich...@weait.com> wrote: > On Mon, May 3, 2010 at 1:00 PM, Jeffrey Ollie <j...@ocjtech.us> wrote: >> >> Only if you have very very good imagery and know what you are looking >> at. In Google's higher resolution imagery you can see them if you >> know what to look for and then if there's street view imagery >> available you can confirm. Obviously you can't trace from Google >> imagery though. I'd link to an example on Google if people think >> that's appropriate. > > Better to find an example on wikimedia commons, or to shoot your own > example photo. The line between acceptable planning from a > proprietary map, and unacceptable deriving data from a proprietary map > is blurry enough to some. Why confuse it further?
There are plenty of examples of ground-level photos of civil defense sirens in the Wikipedia article I linked... Linking to Google Maps to provide examples of how civil defense sirens appear in aerial photography is frowned upon I'm sure. > I know of a place the tests at 1pm on Tuesday. Perhaps that should be > a tag as well? > > man_made=tower > siren=civil_defense I was also able to figure out that tagstat would let me do a search, and I found that there are 8 examples of man_made=siren, mostly in Europe I think. man_made=tower makes sense too, if you want to consider tall wooden poles a tower. > siren:test= (something based on http://wiki.openstreetmap.org/wiki/Key:acces ) Yes, that makes sense as well. -- Jeff Ollie _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
