[OSGeo Africa] Routing application

[Wesley Roberts]

Many thanks Gavin,



I will look at the Road Graph option and then at Grass. We have over 300
locations so I would preferably like to automate the task.



Have been meaning to refine my PostGIS skills so ideally the pgRouting
option might be my best option.



Regards,

Wesley



*From:* africa-bounces at lists.osgeo.org [mailto:
africa-bounces at lists.osgeo.org] *On Behalf Of *Gavin Fleming
*Sent:* 20 November 2013 06:02 PM
*To:* africa at lists.osgeo.org
*Subject:* Re: [OSGeo Africa] Routing application



Hi Wesley

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.

If you need to do it more regularly and with more flexibility the pgRouting
gives you tremendous power.

GRASS also has some really good routing functionality.

I've used all of the above and from the what you've described they will all
provide the required information.

Gavin

On 20/11/2013 16:10, Wesley Roberts wrote:

Dear Colleagues.



I have a quick question regarding a routing application I am trying to
develop.



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.



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 (http://workshop.pgrouting.org/index.html).



Does anyone on the list have experience using this software and will it
provide the information I require?



Many thanks and kind regards,

Wesley



[image: Email_Signature]

Wesley Roberts, PhD.
Remote Sensing and GIS Specialist
BioCarbon Partners
Email: wes at biocarbonpartners.com
Tel +27 83 535 5646 (South Africa)
www.biocarbonpartners.com






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Gavin Fleming

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Paarl

South Africa

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