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<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'>Here’s
some food for thought:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'>My
experience shows that the school location information in available GIS layers
leaves a lot to be desired (I recently plotted some schools in Volusia County
only to notice that they weren’t even on the correct side of I-95!).<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'>The
only county that I know of that has address information posted for public GIS use
is Brevard County. All counties are suppose to be putting this
information together for their 911/Homeland Security needs, but I don’t
know how many of them are done and, again, the only one I know of that is
publicly available is Brevard County.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'>Recent
widespread availability of high-resolution digital aerial photos has shown that
many county’s parcel (cadastral) data is very inaccurate when compared to
other layers (assuming the other layers have some degree of know accuracy).
New digital aerials are as good as +/- 3 ft, although they usually only promise
+/- 7 ft horizontal accuracy.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'>Finally,
as I have already found, much of the GIS information out there is based on
1:100,000 or, if you are lucky, 1:24,000 USGS topographic maps. The
inherent accuracy for these maps are in the +/- 125 ft range at best –
not adequate for situations where the distance has legal implications.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'>Even
“survey accuracy” data only is accurate to 1 part in 10,000.
Which means that a 1 foot error over a 2 mile distance is acceptable. We
recently did some GIS work with survey data from two surveys in Pensacola, the
errors were upward of 1-1/2 ft.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'>There
are other reasons why I have already determined that trying to do precision
work in a GIS environment can be an exercise in futility unless you obtain and
QA all the critical information yourself and determine what an acceptable error
is.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><span style='font-size:24.0pt;font-family:"Brush Script MT";
color:blue'>-- John</span></b><span style='font-size:24.0pt;font-family:"Calibri","sans-serif";
color:blue'> <o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'><o:p> </o:p></span></p>
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<DIV STYLE="FONT-SIZE: 9pt; FONT-FAMILY: Courier New"><EM><FONT FACE="Arial" SIZE="2">The Department of Environmental
Protection values your feedback as a customer. DEP Secretary Michael W. Sole is committed to continuously assessing and
improving the level and quality of services provided to you. Please take a few minutes to comment on the quality of
service you received. <eXclaimer:HTML_ONLY>Simply click on <A TARGET="_blank" HREF="http://survey.dep.state.fl.us/?refemail=John.Sykes@dep.state.fl.us">this link to the DEP Customer
Survey</A>.</eXclaimer:HTML_ONLY> Thank you in advance for completing the survey.</FONT></EM></DIV>
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</FONT></EM> </DIV>
<DIV STYLE="FONT-SIZE: 9pt; FONT-FAMILY: Courier New"><div class=Section1><div><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"'>
shrug-l-bounces@lists.dep.state.fl.us
[mailto:shrug-l-bounces@lists.dep.state.fl.us] <b>On Behalf Of </b>Sandell,
Keith M.<br>
<b>Sent:</b> Monday, January 07, 2008 4:22 PM<br>
<b>To:</b> shrug-l@lists.dep.state.fl.us<br>
<b>Subject:</b> shrug-l: Outside the Box Thinking<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>During
recent months the Florida Department of Corrections began developing a web
based GIS solution for internal use to identify the residential restrictions
required by certain statutes and ordinances related to sexual offenders and
predators i.e. cannot live within 1000ft of a school, daycare, etc. Our project
encompasses the full extents of Florida with detail down to <u>all</u> property
parcels, which are the basis for many restriction measurements, i.e. distances must
be measured from property line to property line. A key component to this
solution is the ability to accurately and efficiently locate any parcel within
the state utilizing a search function. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Many
of the parcels in the metro areas of Florida have physical site address
attribute information associated which is helpful, so long as it is accurate;
however, many parcels, especially in rural areas do not yet have any physical
site address attribute information available, which can make it difficult, if not
impossible to accurately and efficiently locate 1 parcel within 9 million. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
have given long and hard thought to many possible solutions and iterations of
those; yet I have a feeling that there is/are some solution(s) I am
overlooking. I need a fresh pair of eyes to gaze upon my problem. I do not want
to muddy the waters with my garbled thoughts, so please ask yourself the
following:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Keeping
in mind that “Success is the only option,” If faced with a similar
task what would you do to locate the unaddressed parcels? <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thank
you in advance for any ideas.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Keith
Sandell</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Correctional
Services Assistant Consultant</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Bureau
of Probation and Parole Field Services</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Office
of Community Corrections</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Florida
Department of Corrections</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>2601
Blairstione Road</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Tallahassee,
Florida 32399</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Phone:
(850) 410-3045 SC 210-3045</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Fax:
(850) 487-4427 SC 277-4427</span><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal><em><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>This
electronic message may contain protected health record/care information
intended for addressee(s) only. Unauthorized release or disclosure may violate
state and/or federal laws.</span></em><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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