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Network analyst or spatial analyst

Question asked by krollie212 on Mar 11, 2013
Latest reply on Mar 11, 2013 by jsandhu-esristaff
I have a project where I need to calculate either the driving distance or linear distance from three facilities to the center (what I'm using as the average) of Zip code tabulation areas.  I've created a network dataset that works, but its extremely slow, taking about 45 seconds to calculate the route for about 4 test locations.  (my network is the entire state of Indiana)  Is there any way to get the network to calculate routes much quicker?  I've already tried to dissolve and have cut out all the unnecessary streets with little effect.  I have 154,000 locations to calculate distances for, so I cannot do the project with it running this slow.

Would it be quicker/easier to use spatial analyst to calculate linear distance?  I'm not very familiar with the spatial analyst extension, having only run through the tutorial.  If so, how would I go about it?  Any help on the subject would be appreciated.