Starting from an origin-destination dataset for a given country, where the origins are city (points) and the destination are ports (points), how can I identify the area of influence for each particular port?

Is there a tool in ArcMap which can automate the creation of the polygons for showing which region is more key to one port or another?


With Network Analyst, using the Location Allocation tool.

Input your origins as facilities, and destinations as demand points. This should give you a result of associated points, which then can be used to create polygons using either Feature to Polygon or Construct Polygon, Help Site

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