topic Issues related to creating junction in network data set in ArcGIS Network Analyst Questions

Issues related to creating junction in network data set

DuhuiLee1 — Fri, 28 Sep 2018 15:30:58 GMT

I created a multimodal network dataset.

I successfully merged road data of new york cities and then tried to create network dataset.

At this point, I found huge issues.

When I turned on the network road dataset, all junctions were not created on all edges of the network roads.

I attached a picture to show my problem below.

[Used road data]

2018 road data of New York State offered in by U.S. Census Bureau Tigerline.

Would you give me any recommendation for me to solve this issue?

Best wishes,

Duhui.

Re: Issues related to creating junction in network data set

MelindaMorang — Fri, 28 Sep 2018 16:40:20 GMT

This is almost certainly a connectivity issue. At the locations where your streets cross and are supposed to intersect, you need to have either an end point or a vertex, depending on your connectivity settings. Review this documentation for an explanation and further help: Understanding connectivity—Help | ArcGIS Desktop

Re: Issues related to creating junction in network data set

DuhuiLee1 — Fri, 28 Sep 2018 20:17:28 GMT

Thank you @Melinda Morang.

I downloaded those data (most recent version by 2018) from US Census Bureau Tigerline.

Should I use other data?

Thanks,

Re: Issues related to creating junction in network data set

MelindaMorang — Fri, 28 Sep 2018 20:55:37 GMT

Not necessarily. First try adjusting your connectivity policy according to the provided documentation. If that doesn't work, you might need to make some edits to the data. You can use the Integrate tool with an XY Tolerance of 0 to add vertices wherever streets cross, or use the Planarize editing operation.

Re: Issues related to creating junction in network data set

DuhuiLee1 — Fri, 28 Sep 2018 21:11:56 GMT

Thank you!

How do you think about using any vertex connectivity?

Thanks!