Batch Routing and Creating Directions Output

MichaelGlassman2 — Fri, 17 May 2013 14:06:41 GMT

I have a large university dataset of handicap routes. I am trying to create separate routes and directions for every possible combination of start and end points. I have 298 locations which leads to over 88,000 possible routes. I have an ArcPy script set up to run this and it works but if it continues are its current progress I am looking at a run time of about two months.

import arcpy
from arcpy import env
env.workspace = "C:/Users/zx52530/Routing/BestTest.gdb/"
env.scratchWorkspace = "C:/Users/zx52530/Routing/BestTest.gdb/"
env.overwriteOutput = True
i = arcpy.SearchCursor("HC_2013_ND_Junctions")
... for j in i:
...     whereClause = ' "OBJECTID" = ' + str(j.OBJECTID)
...     for g in i:
...         arcpy.na.MakeClosestFacilityLayer("HC_2013_ND", "CF_" + str(j) + "_" + str(g), "Length")
...         arcpy.SelectLayerByAttribute_management("HC_2013_ND_Junctions","NEW_SELECTION",whereClause)
...         arcpy.na.AddLocations("CF_" + str(j) + "_" + str(g), "Facilities", "HC_2013_ND_Junctions")
...         whereClause2 = ' "OBJECTID" = '  + str(g.OBJECTID)
...         arcpy.SelectLayerByAttribute_management("HC_2013_ND_Junctions","NEW_SELECTION",whereClause2)
...         arcpy.na.AddLocations("CF_" + str(j) + "_" + str(g), "Incidents", "HC_2013_ND_Junctions")
...         arcpy.na.Solve("CF_" + str(j) + "_" + str(g),"SKIP","CONTINUE")
...         try:
...             arcpy.na.Directions("CF_" + str(j) + "_" + str(g),"HTML","C:/Users/zx52530/Routing/" +"CF_" + str(j) + "_" + str(g)+".txt","Feet","NO_REPORT_TIME")
...         except:    
...             print "CF_" + str(j) + "_" + str(g) + "FAILS"
...             arcpy.management.SaveToLayerFile("CF_" + str(j) + "_" + str(g),"CF_" + str(j) + "_" + str(g),"RELATIVE") 
...         print "Finished Facility: ", j, "to Incident: ", g

Does anyone have any ideas about how I might improve the efficiency of this script?

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Batch Routing and Creating Directions Output