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I'm trying to divide a closed boundary into sub zones. These sub zones will be of shapes based on a road network. I have tried split tool but it is not working for this.

What tool should I use?

I am using ArcMap 10.8.

PolyGeo
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snow
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  • What do you mean by not working? Can you add a screenshot? – BERA Dec 10 '20 at 09:38
  • By not working, I meant that I'm split isn't the right tool for this. Or I don't know the use of split for this purpose – snow Dec 10 '20 at 10:12
  • This doesn't seem to be possible with standard functionality, but please see here: https://gis.stackexchange.com/questions/31965/automated-geoprocesing-tool-to-slice-clip-or-cut-polygons-using-polylines-usin or here: https://gis.stackexchange.com/questions/30586/splitting-polygon-with-line-using-arcpy – Berend Dec 10 '20 at 10:38
  • Features to polygon will do it. You can select parts belonging to original polygons after. – FelixIP Dec 11 '20 at 03:18
  • the two references were helpful, thank you – snow Dec 11 '20 at 08:12

1 Answers1

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  1. Convert the polygon into polyline
  2. Merge the Polyline with road network
  3. Convert the merged feature class back into polygon

This would create sub-polygons for all you area that has been intersected with you boundary.

However this may have some problems in the corners where the roads do not intersect the border.

enter image description here

riflo
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