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<DIV dir=ltr align=left><SPAN class=608394414-27082007>Ravi,</SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007>I think David Techer
posted an excellent PgRouting tutorial way back. Not sure if you would
find it useful. Its in French</SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007><A
href="http://www.davidgis.fr/documentation/win32/html/apa.html#id2514001">http://www.davidgis.fr/documentation/win32/html/apa.html#id2514001</A></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007>Google translated to
English.</SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007><A
href="http://translate.google.com/translate?u=http%3A%2F%2Fwww.davidgis.fr%2Fdocumentation%2Fwin32%2Fhtml%2Fapa.html%23id2514001&langpair=fr%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools">http://translate.google.com/translate?u=http%3A%2F%2Fwww.davidgis.fr%2Fdocumentation%2Fwin32%2Fhtml%2Fapa.html%23id2514001&langpair=fr%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools</A></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007>I haven't tried PgRouting
myself so really can't speak much about its merits.</SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007>Hope that
helps,</SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=608394414-27082007>Regina</SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
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<FONT face=Tahoma size=2><B>From:</B>
postgis-users-bounces@postgis.refractions.net
[mailto:postgis-users-bounces@postgis.refractions.net] <B>On Behalf Of </B>Milo
van der Linden<BR><B>Sent:</B> Monday, August 27, 2007 9:49 AM<BR><B>To:</B>
RAVI KUMAR<BR><B>Cc:</B> PostGIS Users Discussion<BR><B>Subject:</B> Re:
[postgis-users] Fire station<BR></FONT><BR></DIV>
<DIV></DIV>Hello Ravi!<BR><BR>Thank you for the response. I used to use rwnet
from <A class=moz-txt-link-abbreviated
href="http://www.routeware.dk">www.routeware.dk</A>, a very good commercial
routing module for windows. <BR><BR><BR>But I also found pgRouting (openSource
and part of OpenLBS) available for postGIS at <A class=moz-txt-link-freetext
href="http://pgrouting.postlbs.org/">http://pgrouting.postlbs.org/</A><BR>it has
the ability to do drive-time analyses which can then be transformed to
cartographic representation on maps. <BR>I think this module will be very good
for you, especially because it will give you a good insight on the data model
needed to do this routing so you can prepare a dataset for testing.<BR><BR>I am
trying this routing module out and will post some samples on my test website
soon.<BR><BR>Please let me know if I can be of assistance!<BR><BR><BR>RAVI KUMAR
schreef:
<BLOCKQUOTE cite=mid:317343.60634.qm@web60520.mail.yahoo.com type="cite">Hi
<BR>Quite encouraging, and let me know about the
routing<BR>module..<BR>Cheeres<BR>Ravi Kumar<BR><BR><B><I>Milo van der Linden
<A class=moz-txt-link-rfc2396E
href="mailto:mlinden@zeelandnet.nl"><mlinden@zeelandnet.nl></A></I></B>
wrote:
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid">Hello
Ravi,<BR><BR>I am specialized in this matter. I have developed a system to
do all<BR>kind of firebrigade calculations:<BR><BR>- Area of coverage
determined by matching drive times from all the stations:<BR><BR><BR>-
Determination of best location for new firestation (dark blue area<BR>being
the best suitable location):<BR><BR><BR>And more. In order to do good,
realistic modeling for firebrigades you<BR>need datasets that have:<BR>-
firestation locations<BR>- vehicle types and vehicle start locations<BR>-
target locations<BR>- General description on basic firebrigade SLA (minimal
requested time<BR>of arrival)<BR>- SLA matched to individual buildings or
area's<BR>- target location fire-vehicle needs (for instance with or without
ladder)<BR>- Dispatch time (time needed between the emergency number
accepting a<BR>call and dispatching a vehicle)<BR>- Response time (time it
takes the crew to get equiped and in the vehicle)<BR><BR>And most important
of all:<BR>- A road network that is fine-tuned for fire-vehicles (bridges
that<BR>can't be crossed, special thru-ways, and so on)<BR><BR>If you got
all this data in place, you need a routing module and prepare<BR>all kind of
extra calculations.<BR><BR>Please let me know if I can help you any
further.<BR><BR><BR><BR><BR>RAVI KUMAR schreef:<BR>> Hi,<BR>> planning
to locate fire stations in an urban area.<BR>> 1. Each fire station will
have to cover 10 km from its location.<BR>> 2. Other fire stations to be
placed to reduce duplication and the<BR>> entire town is<BR>> within
-10km- for an emergency call.<BR>><BR>> Please suggest 'postgis
query', on a line network of roads for the town.<BR>><BR>>
Cheers<BR>> Ravi Kumar<BR>><BR>>
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<BR><BR><BR>-- <BR><BR><BR><BR><BR>Milo van der Linden<BR>skype:
milovanderlinden <SKYPE:MILOVANDERLINDEN?ADD><BR><A
class=moz-txt-link-abbreviated
href="mailto:mlinden@zeelandnet.nl">mlinden@zeelandnet.nl</A>
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<P class=style4>Milo van der Linden <BR><A
href="skype:milovanderlinden?add">skype: milovanderlinden</A><BR><A
href="mailto:mlinden@zeelandnet.nl">mlinden@zeelandnet.nl</A><BR><A
href="mailto:milovanderlinden@gmail.com">milovanderlinden@gmail.com</A><BR><A
href="mailto:milo@3dsite.nl">milo@3dsite.nl</A><BR><A
href="http://www.3dsite.nl">http://www.3dsite.nl</A><BR></P></TD>
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<TD vAlign=top width=300>
<P class=style5><SPAN lang=NL>De informatie in dit bericht reflecteert
mijn persoonlijke mening en niet die van een bedrijf of instantie. Aan de
informatie kunnen geen rechten worden ontleend. Indien dit bericht
onderdeel is van een forum, mailing-list of community dan gelden
automatisch de bij het betreffende medium behorende voorwaarden.</SPAN>
<SPAN lang=EN>The information in this message reflects my personal opinion
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