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I am working with a large data set of property information (500K+ observations), trying to create a cost matrix to find the drive time of all points to downtown Houston. I have set my origins as the parcel point and have set my destination as a singular point in downtown Houston. I did not change any default settings when I was loading my destinations. When I solve the matrix only 125 observations are returned.

Previous posts about this subject have suggested it's a network connectivity issue. I have tried integrating my network, however that didn't change anything. I have also thought about changing the search tolerance for my origin points, but I don't think that would be a solution.

Large scale example: enter image description here

Small scale example: enter image description here

Purple = parcel, Green point = junction

Looking at the above maps, the analysis is taking place within a small area and avoiding observations which are in the same same neighborhood. Because of these two images I've determined that previous answers to this question may not apply.

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2 Answers 2

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Does your connectivity policy allow you to turn at any vertex or is it set for end points? It looks like all of your destinations are in a row, which could be because the network only allows you to get off that road at it's end, not necessarily where it is crossed by other roads.

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Try switching around your locations, origin as the singular point and destinations as the 500k+ observations. When loading the origin, set the TargetDestinationCount as 500k+, then solve

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  • sorry, just gave this a shot and it did not work.
    – DPek
    Nov 8, 2017 at 23:20

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