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GENERIC STEP-BY-STEP APPROACH  STEP THREE






























               Figure 19:  Feedlinks joining communities and service points to the road network

               Use Delaunay networks or triangulation to create a set of triangles that connect nearby communities
               and service points to one another.    The triangles are generated by the GIS software and the  triangle
               edges show the shortest distances between communities and/or service points.
               Figure 20 provides an illustration of a Delaunay network linking communities and service points to one
               another.




























               Figure 20:  Delaunay network linking communities and service points to one another
               After you have created the Feedlinks and Delauney networks, you need to identify links between
               communities, service points and the road network that need to be deleted manually because they cross
               geographic barriers that make them inaccessible.  Barriers include, for instance, steep mountainous
               areas, conservation areas and large rivers.












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