I am building from-everywhere-to-everywhere routes in ArcGIS Network Analyst using OpenStreetMap Data. I have 189 points that I want to connect with all possible other facilities. I ran this using the Closest Facility Tool in Network Analyst, by loading 189 facilities and 189 incidents, and trying to find 189 closest facilities for my incidents. Ideally, I should have 35532 routes, if excluding self-loop. However, after dissolving the network, fixing topology, snapping my facilities and incidents to the network data, allowing U-turns, increasing search radius to 1500m, I kept only having 18559 routes solved. Some of my incidents were only connected to one or two other facilities. What could have gone wrong?

  • Try increasing the search radius further, even to 30k. Do you get any messages in the log (e.g. non-traversal element errors?) Have a look here : desktop.arcgis.com/en/arcmap/latest/extensions/network-analyst/… – 15Step Apr 8 '19 at 18:43
  • Thanks for helping me. I tried it, and it did not work. all the facilities and incidents were located, I increased search tolerance to 30,000 meters. Still came up with 18,559 routes. – rnought Apr 8 '19 at 19:18

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