Computing OD  Matrix using Network Analyst

Discussion created by tdgoswami on May 11, 2010
Latest reply on Feb 29, 2012 by jhansi131
Our current situation is that we have around 40,000 geolocated settlements across Africa, and each is located on a detailed road network shapefile. We would like to calculate the shortest distances by road from each settlement to every other settlement (i.e. creating a huge 40,000 x 40,000 Origin-Destination matrix of distances) - we have a methodology to do this for smaller datasets within GIS software, but are held back by memory limitations for such a large operation. Hence, we were interested to explore your methods before we consider developing our own solutions. Do you have any advice or suggestions on proceeding with this please ?