Definition of the Logistics Park Hinterland Based on the Analysis of Spatial Medium Effect Applying to Weighted Voronoi Diagram

Abstract

Accurately defining the logistics park hinterland is the basis of the rational planning of the logistics park as well as further improving the logistics efficiency. However, currently, the parameters of the methods and models for defining the logistics park hinterland are still not perfect, which lead those reasonableness and accuracy are also not ideal. Subsequently, based on the Voronoi diagram basic theory in computational geometry which reflects the advantage of the continuity of space division as well as by introducing both the ‘scale’ parameter of the space object in the breaking-point model and the heterogeneity of the spatial medium caused by both the transportation network and the regional comprehensive strength factors into Voronoi diagram, the model based on the analysis of spatial medium effect applying to weighted Voronoi diagram to define the logistics park hinterland was built. Then the plug-in used in GIS software was programmed. Finally, this model and plug-in were practically applied to the planning example of Xinjin logistics park in Sichuan Province. Practice has proved that this model overcome the defects existing in the conventional space division theories and the ordinary Voronoi diagram theory, which makes the definition of the logistics park hinterland more reasonable and scientific.