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Hidden/Stacked polylines

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02-12-2025 02:54 PM
GIS_Life
Emerging Contributor

I have a feature layer of distribution mains (polyline layer). That I need to find lines that are on top of one another. There are 640,000+ features (lines) in this layer.

I have utilized the FIND IDENTICAL tool off the layers Shape field to find lines with identical geometric.

This feature layer more than likely has lines of different geometries and slight differences in vertices that are hidden or stacked on each other.

I need suggestions on how I can find these "duplicate", "hidden", "stacked" lines.

All research has pointed me to use the intersect tool. The problem with this is, the intersect tool also selects lines that touch or cross other lines. 

I only need to find lines on top of each other that may not have the same geometry.

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GIS_Life
Emerging Contributor

This is being done on one feature class. I took your advice and looked into topology and utilized the rule Must Not Overlap, and this appears to be what I am looking for. Will keep you posted. Thanks for the input from you both @MarkBoucher and @DanPatterson