[OSM-talk] Jacmel Haiti, DigitalGlobe Imagery, and Road Alignment

[Brad Neuhauser]

At least that was my assumption.  Even if the DG imagery is off, it's
more up-to-date than the 1987 map, so I moved the roads to align with
the DG imagery.  Much of the city (esp central city, north) has been
realigned with the DG imagery.  I also removed some streets traced
from the map that were clearly wrong, and tagged some others with the
fixme tag.  Also, see the Street Names page for link to UN maps you
can use for additional info.
http://wiki.openstreetmap.org/wiki/WikiProject_Haiti/Street_names

Brad (neuhausr)

On Tue, Jan 19, 2010 at 1:42 PM, Karl Guggisberg
<karl.guggisberg at guggis.ch> wrote:
> Hi,
>
> I have the same problem. Brad Neuhauser said on the crisismapping list that
> lot of work has been done before digitalglobe was available. In particular,
> an old CIA map has been used, there are a lot of objects with a source tag
> refering to it. I've started to delete individual buildings which are
> obviously badly off. I'm not sure whether the digitalglobe imagery is
> correctly rectified, thought. Anybody?
>
> Regards
> Karl
>
> Am 19.01.2010 20:24, schrieb Al Haraka:
>
> All,
>
> I understand we are all busy, but I have some Haiti questions.  The area
> around Jacmel in the south appears to be very messy at the moment, and I am
> only focusing on roads and basic infrastructure.  The roads seem very far
> off, and at times some do not even seem to point to an artifact I can see in
> the imagery.
> http://www.openstreetmap.org/?lat=18.22381&lon=-72.52094&zoom=16&layers=B000FTF
> I have tried cleaning it up using the DigitalGlobe imagery, which I have
> assumed to be the best.  Am I wrong here?  What are other people using and
> what are the current recommendations?  Am I doing a bad job or wasting my
> time aligning the roads if they are this far off?  I realize my use of DG
> may bias me, and I have not taken the time to compare.  That being said, I
> heard it was the most recent and expansive.
> Sorry for the newbishness here.  I just want to help, and I heard Jacmel and
> all points south will be needed soon.
> Regards,
> _AJS
>
> --
> Alexander J. Stein
> Cell:  (201) 412-9479
> Email: alharaka at gmail.com
> Skype: alexander.j.stein
> AIM:   elduderino6886
>
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