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<div class="moz-cite-prefix">Hi Wesley<br>
<br>
If it's just a few routes and you need to do the exercise just a
few times then the Road Graph plugin in QGIS should do the trick.
<br>
<br>
If you need to do it more regularly and with more flexibility the
pgRouting gives you tremendous power.<br>
<br>
GRASS also has some really good routing functionality. <br>
<br>
I've used all of the above and from the what you've described they
will all provide the required information. <br>
<br>
Gavin<br>
<br>
On 20/11/2013 16:10, Wesley Roberts wrote:<br>
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<p class="MsoNormal">Dear Colleagues.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I have a quick question regarding a routing
application I am trying to develop. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I would like to calculate travel time
between a central location and a number of point locations
(Permanent Monitoring Plots) along a sparse road network. The
points do not occur on the roads. My travel time calculation
is therefore made up of travel along roads (by car) and
walking from the road to the point of interest. I can
calculate distance from each point to the nearest road fairly
easily, however, calculating the distance from each nearest
point to a central location appears to a be a little more
difficult. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Is this a job for pgRouting? I have found
the following workshop and am happy to work through it
provided the application can undertake the tasks I require (<a
moz-do-not-send="true"
href="http://workshop.pgrouting.org/index.html">http://workshop.pgrouting.org/index.html</a>).</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Does anyone on the list have experience
using this software and will it provide the information I
require? </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Many thanks and kind regards,</p>
<p class="MsoNormal">Wesley</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><img id="Picture_x0020_1"
src="cid:part2.09000101.04050305@gmail.com"
alt="Email_Signature" height="103" width="334"><span
style="font-size:13.5pt;color:black"><br>
<br>
<span style="background:white">Wesley Roberts, PhD.</span><br>
<span style="background:white">Remote Sensing and GIS
Specialist</span><br>
<span style="background:white">BioCarbon Partners</span><br>
<span style="background:white">Email: <a
moz-do-not-send="true"
href="mailto:wes@biocarbonpartners.com">wes@biocarbonpartners.com</a></span><br>
<span style="background:white">Tel +27 83 535 5646 (South
Africa)</span></span><span
style="font-size:13.5pt;color:black"> </span><span
style="font-size:13.5pt;color:black"><br>
<span style="background:white"><a moz-do-not-send="true"
href="http://www.biocarbonpartners.com">www.biocarbonpartners.com</a></span></span></p>
<p class="MsoNormal"> </p>
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<pre class="moz-signature" cols="72">--
Gavin Fleming
t: 0218620670
w: 0218630660
c: 0845965680
f: 0866164820
Paarl
South Africa
18°59'19.6"E 33°44'46.1"S</pre>
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