topic Re: Intersection Question : Include ALL Intersections in a single point (3way+) in Geoprocessing Questions

Intersection Question : Include ALL Intersections in a single point (3way+)

DarrenWiens2 — Wed, 03 Sep 2014 21:32:08 GMT

Hmmm it works for me.

Imagine I have only two points A and B that are coincident.

Run Spatial Join using the points as both Target and Join features, and JOIN_ONE_TO_MANY as the join operation.

You now have 4 points, with all of the columns from the Target feature (including a column for street name) and all of the columns from the Join features (including its street name). The four features are: A joined to A, A joined to B, B joined to A, and B joined to B. Only one of these will have a Target_FID greater than Join_FID. This is the only point you want to keep (i.e. select all of the points with Target_FID < Join_FID, and delete them). You now have one feature with two fields, each with a street name.

Re: Intersection Question : Include ALL Intersections in a single point (3way+)

BrianO_keefe — Thu, 04 Sep 2014 20:44:49 GMT

My question is now... what about 3 and 4 way intersections?

For instance, we have some streets that span a directional split...

North Memorial Drive and South Memorial Drive.

So technically, where Memorial INTERSECTS with our split point which is parallel to Admiral I should have...

Intersection 1
1. South Memorial Drive
2. North Memorial Drive
3. West Admiral Drive

Any ideas here?

Re: Intersection Question : Include ALL Intersections in a single point (3way+)

BrianO_keefe — Thu, 04 Sep 2014 20:52:38 GMT

On an interesting side note...

I just discovered a weird side-effect.

After doing the spatial join I get a SINGLE point for ALMOST ALL Intersections.

ALMOST ALL... EXCEPT those that are like I described above...

For instance...

Where Admiral Blvd splits North and South Phoenix Ave I have 3 points.

Intersection Point
1. N PHOENIX AVE
2. S PHOENIX AVE
Intersection Point
1. N PHOENIX AVE
2. W ADMIRAL BLVD
Intersection Point
1. S PHOENIX AVE
2. W ADMIRAL BLVD

The street names above that are bolded I would like to merge into a single point... The ones struck through should be removed.

Any ideas how to get to this?