Census roads to build network dataset

Avanov

I am trying to create a network dataset for 2010, using US Census Road shapefiles, in order to run the OD Cost Matrix. 

I've followed the steps to create a feature dataset in the geodatabase and create and build a network dataset. With Census road data, I did not receive any additional connectivity or attribute information, and I believe this is what is causing my OD matrix to fail to connect origins to destinations within the 1600m cutoff distance. When exploring the road network layer with "explore network," I think my problem is related to a lack of junctions. It appears there are only start and end junctions, not intersections.

I'm having a hard time finding information on how to create a network dataset using Census data like this. I'm wondering if anyone has any resources or tips for this process? 

Melinda Morang

Based on your description, I think one of the two scenarios is likely causing the problem.

1. The streets have vertices where they touch at intersections, but you're using End Point connectivity. You could switch it to Any Vertex connectivity, and the problem would be solved (but you may have some problems at overpasses/underpasses).
2. The streets don't have vertices where they touch at intersections.  In this case, you could run the Integrate tool to create them and then switch to Any Vertex connectivity.

More detail about these types of problems and many others are available in our Troubleshooting Guide here: https://pro.arcgis.com/en/pro-app/latest/help/analysis/networks/troubleshoot-network-analysis-problems.htm#ESRI_SECTION2_ECAFDA8C10644B90B322743F785214DB