I need to spatially join 2 polylines, but the problem is that the tables have nothing in common. Also, one of the tables is 4 times as big as the other one. Essentially, what is need is to combine the 2 layers into one based on location. I tried with buffers, and simple joining didnt work, so I will try spatial joining, but im wondering is there is a surefire way to do the following:

  1. A poorly digitized version (has what i need in the take)
  2. Properly digitized version ( 4x as big as previou)

If a polyline in #1 is found to be close to the polyline of #2, and share approximate angles, then it should merge.

enter image description here

  • 1
    Have you tried Select Layer By Location (Data Management), here is the link. If you are looking something like this then please elaborate your question.
    – Surya
    Jan 18, 2015 at 6:49
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    What are you hoping to get as a result? It is unclear in your question. If you have two layers, and you are looking for lines from both layers to be selected from within an area, then @Surya is correct, you will want to use select by location. But your question isn't clear as to what you have or what you want to do. Jan 18, 2015 at 19:22
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    I think this question will be much clearer if you can edit it to include a graphic that illustrates your inputs and desired outputs.
    – PolyGeo
    Jan 18, 2015 at 22:31
  • Thanks for your help everyone, I re-drew the picture, so hopefully you can understand it more now.
    – Martin
    Jan 18, 2015 at 23:39

1 Answer 1


So, the after some looking around and playing with it, I have come up with a decent solution

  1. Make a buffer around the layer that has the attribute you want. (Each buffer will be different) 2.Spatial join to the layer that is properly digitized( you want the attribute on)

Tips: In the buffer,i used FLAT, And dissolved over attributes I knew the polylines had in common The spatial join was a one to one, with match option of : within.

Result: With proper buffers, the attribute from Layer 1 will be in the table of layer2, and you are free to do whatever is needed.

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