standalone junctions with points from intersect; network build error

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4
11-17-2020 03:43 AM
olwong123
New Contributor

I am currently trying to build a network dataset with busses, tram and train; in order to connect the street layer with the trainline for example, a buffer of 50 meters was built and then the perimeter was turned into a line. Then, I intersected the perimeters with the trainlines to create new stops (output:point), to create a similar feature as 'metro_entrances' in the network analysis tutorial (https://desktop.arcgis.com/en/arcmap/latest/extensions/network-analyst/exercise-2-creating-a-multimo...). 

However, when I tried to build a network dataset, it said that all points that were created through the intersect, were standalone junctions. I already used the tools planarize and integrate, to get end points at every intersection. However, when I zoom into the intersectionpoints that I created, it seems that there are not exactly at the intersection between the original trainline and the perimeter of the buffer. This has to do with the endpoint and vertices, but how do you fix this, in order to avoid getting standalone junctions? 

(Essentially, how do I create vertexes at the intersection of the two lines, so a junction would connect the two?)

This is essential for my bachelor thesis, so I would very much appreciate it if someone knew the solution to my problem. Thanks in advance!

 

in previous posts, http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//002r0000004s000000 was suggested but this does not work as I am not working with a geometric network. 

https://support.esri.com/en/technical-article/000016712 this does not work either for me. 

 

attachments: blue is the busline, green is the streetlayer with the perimeters merged. 

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4 Replies
DavidPike
MVP Frequent Contributor

Can you specify a very small XY tolerance in the original intersect e.g. 0.001m?

 

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olwong123
New Contributor

edit: I tried it, but still the same error. This is probably due to the fact that the layers aren't coincident, so there has to be a vertex at the point of intersection in both layers in order to connect, but that is what I am currently looking for. 

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DavidPike
MVP Frequent Contributor

Can you break down your problem a bit more as I'm still struggling with what you're trying to do (appreciate that may just be my brain at fault here), and where the 50m buffers have come from etc.

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MelindaMorang
Esri Regular Contributor

This may not apply to you, but if you have GTFS public transit data, you should be using the procedure described in this tutorial: https://pro.arcgis.com/en/pro-app/help/analysis/networks/create-and-use-a-network-dataset-with-publi...

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