I'm working with a few roads and trails datasets. There are some duplicate geometries that are not identical. See photos below.

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I tried Find Identical with XY Tolerance, but it didn't seem to find most of these. I tried continuing to increase the XY tolerance, but I just got it finding parallel roads like the roads below.

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I even tried planarizing the lines and just got a bunch of segments. I thought about trying to pull them out based on number of intersections, but I'm not even sure how to make that work.

  • Are you using ArcGIS Pro or ArcMap?
    – PolyGeo
    Apr 6, 2021 at 2:33
  • 1
    Perhaps your situation is similar to gis.stackexchange.com/questions/93787/… number of intersections start with feature vertices to points (both ends) then buffer by a small amount (dissolving), multipart to single part on the buffer and spatial join the buffer and end points with a statistic of count - this is the number of lines that start or end inside the buffer. You could also try sliver polygons from the lines (shape_length >> shape_area, don't worry about the units it's the factor that's important). Apr 6, 2021 at 3:06
  • 1
    What do you want to do? Find the almost identical lines? Delete one of them? Create an "average" line? Try Integrate tool
    – BERA
    Apr 8, 2021 at 12:10
  • Buffer the lines by some amount, calculate overlap between buffers, if more than X% the lines are almost identical.
    – til_b
    Apr 13, 2021 at 14:37


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