基于道路经济影响范围的路网密度分析

Analysis of Road Network Density Based on the Scope of Road Economic Influence

为了解决在进行道路核密度分析时带宽取值的主观性问题,基于陕西省高速公路矢量数据,本文在主要考虑经济因素情况下运用GIS对其进行了核密度分析。分析过程把经济学上的运费-时间模型和过境行政区法进行结合确定高速公路的搜索半径即带宽,该方法确定的搜索半径进行密度分析能更好的体现高速公路对地区经济的带动作用,可为规划部门在规划路网时提供一定的指导和借鉴。

In order to solve the subjectivity problem of bandwidth value in road kernel density analysis,based on the vector data of Shaanxi expressway,the kernel density analysis of expressway is carried out with GIS under the condition of considering economic factors.Analysis on the economics of freight-time model and method are combined to determine the highway transit administrative region of the search radius of the bandwidth,the method to determine the search radius density analysis can better reflect the highway to the leading role of the district economy,and for the planning department in planning and road network provide certain guidance and reference.