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

[Al Haraka]

So it seems the consensus is to stick with DG, despite its problems.  When
something better comes along, we start using that.  Am I following
correctly?  Some of the old stuff, especially the 1987 map, concerned me.

On Tue, Jan 19, 2010 at 2:48 PM, Brad Neuhauser <brad.neuhauser at gmail.com>wrote:

> 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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-- 
Alexander J. Stein
Cell:  (201) 412-9479
Email: alharaka at gmail.com
Skype: alexander.j.stein
AIM:   elduderino6886
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