<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=utf-8">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I had digitized some of those roads and features around Jacmel late
last week from the DMA mapping, before the DigitalGlobe imagery or other good
sources were available, with the full anticipation that they would eventually
be updated via imagery. The bigger value to the DMA maps as I saw it is that
they had some local cultural information such as POIs and place names, as well
as basic road network. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The DMA maps were scanned paper maps, rectified via NYPL MapWarper,
no surprise that they might be off a tad here and there.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I have since then been updating via DigitalGlobe, tho there are
still some areas that need updating. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>So as far as “concern”, there shouldn’t be much, just stick with
the more current and update the older stuff – though be thoughtful when
deleting things outright. I think there is still some value to knowing what
potential road network there may be (even if it’s tracks not well visible from
the air- I’ve found some that are shown on the DMA maps but which are only
barely discernible via tree crowns vaguely outlining the road underneath) and
where there may be potential dwellings, et cetera (potentially obscured by tree
cover) - I have been designating some of those more ambiguous ones (e.g. road
network visible in DG imagery, but buildings not obvious) as “residential area”
as there is probably a reason the roads are there. Obviously, if there is no
tree cover, there is less ambiguity, the road may just be off in another
direction, inaccurately placed on the DMA maps – worth looking around for it
before deleting it outright – I’ve found that to be the case in a few instances
as well.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>David G. Smith PE PLS</span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Synergist Technology Group, Inc.</span><span style='font-size:
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>570.280.6763<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> talk-bounces@openstreetmap.org
[mailto:talk-bounces@openstreetmap.org] <b>On Behalf Of </b>Al Haraka<br>
<b>Sent:</b> Tuesday, January 19, 2010 2:59 PM<br>
<b>To:</b> Brad Neuhauser<br>
<b>Cc:</b> talk@openstreetmap.org<br>
<b>Subject:</b> Re: [OSM-talk] Jacmel Haiti, DigitalGlobe Imagery, and Road
Alignment<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>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.<o:p></o:p></p>
<div>
<p class=MsoNormal>On Tue, Jan 19, 2010 at 2:48 PM, Brad Neuhauser <<a
href="mailto:brad.neuhauser@gmail.com">brad.neuhauser@gmail.com</a>> wrote:<o:p></o:p></p>
<p class=MsoNormal>At least that was my assumption. Even if the DG
imagery is off, it's<br>
more up-to-date than the 1987 map, so I moved the roads to align with<br>
the DG imagery. Much of the city (esp central city, north) has been<br>
realigned with the DG imagery. I also removed some streets traced<br>
from the map that were clearly wrong, and tagged some others with the<br>
fixme tag. Also, see the Street Names page for link to UN maps you<br>
can use for additional info.<br>
<a href="http://wiki.openstreetmap.org/wiki/WikiProject_Haiti/Street_names"
target="_blank">http://wiki.openstreetmap.org/wiki/WikiProject_Haiti/Street_names</a><br>
<br>
Brad (neuhausr)<o:p></o:p></p>
<div>
<div>
<p class=MsoNormal><br>
On Tue, Jan 19, 2010 at 1:42 PM, Karl Guggisberg<br>
<<a href="mailto:karl.guggisberg@guggis.ch">karl.guggisberg@guggis.ch</a>>
wrote:<br>
> Hi,<br>
><br>
> I have the same problem. Brad Neuhauser said on the crisismapping list
that<br>
> lot of work has been done before digitalglobe was available. In
particular,<br>
> an old CIA map has been used, there are a lot of objects with a source tag<br>
> refering to it. I've started to delete individual buildings which are<br>
> obviously badly off. I'm not sure whether the digitalglobe imagery is<br>
> correctly rectified, thought. Anybody?<br>
><br>
> Regards<br>
> Karl<br>
><br>
> Am 19.01.2010 20:24, schrieb Al Haraka:<br>
><br>
> All,<br>
><br>
> I understand we are all busy, but I have some Haiti questions. The
area<br>
> around Jacmel in the south appears to be very messy at the moment, and I am<br>
> only focusing on roads and basic infrastructure. The roads seem very
far<br>
> off, and at times some do not even seem to point to an artifact I can see
in<br>
> the imagery.<br>
> <a
href="http://www.openstreetmap.org/?lat=18.22381&lon=-72.52094&zoom=16&layers=B000FTF"
target="_blank">http://www.openstreetmap.org/?lat=18.22381&lon=-72.52094&zoom=16&layers=B000FTF</a><br>
> I have tried cleaning it up using the DigitalGlobe imagery, which I have<br>
> assumed to be the best. Am I wrong here? What are other people
using and<br>
> what are the current recommendations? Am I doing a bad job or
wasting my<br>
> time aligning the roads if they are this far off? I realize my use
of DG<br>
> may bias me, and I have not taken the time to compare. That being
said, I<br>
> heard it was the most recent and expansive.<br>
> Sorry for the newbishness here. I just want to help, and I heard
Jacmel and<br>
> all points south will be needed soon.<br>
> Regards,<br>
> _AJS<br>
><br>
> --<br>
> Alexander J. Stein<br>
> Cell: (201) 412-9479<br>
> Email: <a href="mailto:alharaka@gmail.com">alharaka@gmail.com</a><br>
> Skype: alexander.j.stein<br>
> AIM: elduderino6886<br>
><br>
> _______________________________________________<br>
> talk mailing list<br>
> <a href="mailto:talk@openstreetmap.org">talk@openstreetmap.org</a><br>
> <a href="http://lists.openstreetmap.org/listinfo/talk" target="_blank">http://lists.openstreetmap.org/listinfo/talk</a><br>
><br>
><br>
> _______________________________________________<br>
> talk mailing list<br>
> <a href="mailto:talk@openstreetmap.org">talk@openstreetmap.org</a><br>
> <a href="http://lists.openstreetmap.org/listinfo/talk" target="_blank">http://lists.openstreetmap.org/listinfo/talk</a><br>
><br>
><br>
<br>
_______________________________________________<br>
talk mailing list<br>
<a href="mailto:talk@openstreetmap.org">talk@openstreetmap.org</a><br>
<a href="http://lists.openstreetmap.org/listinfo/talk" target="_blank">http://lists.openstreetmap.org/listinfo/talk</a><o:p></o:p></p>
</div>
</div>
</div>
<p class=MsoNormal><br>
<br clear=all>
<br>
-- <br>
Alexander J. Stein<br>
Cell: (201) 412-9479<br>
Email: <a href="mailto:alharaka@gmail.com">alharaka@gmail.com</a><br>
Skype: alexander.j.stein<br>
AIM: elduderino6886<o:p></o:p></p>
</div>
</body>
</html>