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利用GIS技术构建了地域通达性的面状分布模型,提供了更直观的地域通达性分析方法,弥补了研究点的局限性,以南京市道路空间数据为例,采用Floyd最短路径分析算法获得了空间数据中节点的最短路径及各点基于距离指标的通达性系数,并利用Kriging插值完善数据,最终获得南京市道路通达性面状分布模型。结果表明,该模型与实际相符,有效可行,可供借鉴。
Using GIS technology to construct the regional accessibility planar distribution model and provide a more intuitive method of regional accessibility analysis to make up for the limitations of the research point. Take the Nanjing road space data as an example, using Floyd shortest path analysis algorithm The shortest path of nodes in the spatial data and the accessibility coefficients of each point based on the distance index are obtained. The Kriging interpolation is used to perfect the data, and finally the accessible distribution model of Nanjing Road is obtained. The results show that the model is in accordance with the actual, effective and feasible.