Hej,
I am using ArcGIS Pro 3.1 and would like to do a network analysis. My source layer is a feature class of polylines.
Creating the network dataset, making the OD cost matrix layer, adding locations and solving it does work. However the results presented are incorrect.
What is incorrect?
- some origins are not adressed
- some destinations are not addressed
-> therewith results are not alsways showing the truly shortest path, as e.g. the closest destination is not considered.
I am attaching a picture to clarify the issue.
Pic1:
The yellow points are the origins, green squares are the destinations. We take the example of origin X1. As you see X1 is connecting to a destination far away, but not connecting to destination Z1, which is close by, although the network edges E1 and E2 are shown.
Pic2:
A closer look to the network does reveal that the edges are not connected. I tested the two line features seperatly for intersection. The tool does return an empty result.
Pic3:
The pictures are showing how the edges E3 and E4 are connected through J1. Interestingly I tested the two line features in questions seperatly for intersection and the tool does also return an empty result aswell.
This leaves me with the question of what is the difference between the two examples. Why does the second example end up as a proper network connection and the first one does not. How can I alter my network to let it acknowledge the connection in example 1. Is there a tool / an automasation to fix this ?
I did already try to run the analysis with different connectivity policies (EndPoint / Any Vertex). This did unfortunatly not change the problem.
I would be truely grateful if someone has an idea of what the problem is and probably even how to fix it.
Thanks a lot in advance!
Best regards,
Jana