[GIS] Find overlapping polylines in same layer in ArcMap

arcgis-desktoparcmapoverlapping-features

How can I find overlapping polyline features in a layer in ArcMap without writing any code?

I have a PolyLine feature class in a personal geodatabase. It contains some features that overlap another polyline features.If I use "Select by location" menu to find these overlapped features, (suppose I have two different layers based on same featureclass) and use "Share a line segment with the source layer feature" from the dialog box in ArcMap, all features get selected because each feature overlaps with itself.

If I have 2 polyline layers in ArcMap based on one feature class, how can I find features from top layer which overlap with features of bottom layer that have different ObjectId?

This is a layer with only 2 line features that overlap each other.It's in editing mode with one feature selected so we can see its vertices and how it overlap part of another line segment

Best Answer

I recommend that you try using the Intersect (Analysis) tool with one input.

According to How Intersect works (with my bolding):

Intersect can run with a single input. In this case, instead of discovering intersections between the features from the different feature classes or layers, it will discover the intersections between features within the single input. This can be useful to discover polygon overlap and line intersections (as points or lines).

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