I am very new to ArcGis and am trying to figure out how to do this.
Basically, this is what I am trying to do:
I have a map of Canada and in it I have polygons representing areas (each about the size of a municipality). I also have points describing the location of every airport in Canada and the network of roads all across Canada. What I need to do is find the distance from each area to the nearest airport using a road.
What I tried to do already was find the centroid of each polygon because I thought that I could use that to calculate the distance between two points along a road. But then I realized that the centroid is not necessarily connected to a road (especially in the northern parts of Canada) therefore I cannot use that.
I would really appreciate some sort of guidance as to how I would accomplish this as I am very new to ArcGIS and have not found much to help me (without confusing me) online.