高铁出行的分时段区域可达性评价方法——以湖南省为例

发布时间：2018-03-18 04:02

本文选题：综合交通运输　切入点：分时段可达性　出处：《经济地理》2017年07期 　论文类型：期刊论文

【摘要】：高速铁路的运营促进了区域之间的联系,列车开行频率对各区域可达性产生了显著影响。一定区域范围内的可达性经常被用于评价区域空间结构的优劣。文章将可达性的概念扩展为分时段可达性,以县级行政建制为基本单元节点,采用加权平均出行时间为指标描述各节点的分时段可达性,结合高速铁路及道路交通网络,定义不同交通方式的出行时间费用。以湖南省为例,通过Arc GIS计算得到省内122个节点在17个时段内的分时段可达性。根据各节点的分时段可达性值,得到湖南省122个节点的最佳出行时段Voronoi图以及最佳出行时段的空间划分,为区域空间结构评价提供了新的方法。
[Abstract]:The operation of high-speed railways has facilitated regional linkages, The frequency of train running has a significant effect on the regional accessibility. The reachability in a certain area is often used to evaluate the advantages and disadvantages of the regional spatial structure. In this paper, the concept of reachability is extended to time-divided accessibility. Based on the county administrative system as the basic unit node, the weighted average travel time is used as the index to describe the time interval accessibility of each node, combined with the high-speed railway and road traffic network. The travel time cost of different traffic modes is defined. Taking Hunan Province as an example, the time interval reachability of 122 nodes in the province is calculated by Arc GIS. According to the time interval reachability of each node, the time interval reachability of each node is calculated. The optimal travel time Voronoi diagram of 122 nodes in Hunan Province and the space partition of the optimal travel time are obtained, which provides a new method for the evaluation of regional spatial structure.
【作者单位】：中南大学交通运输工程学院;武汉地铁运营有限公司;
【基金】：国家自然科学基金项目(U1334207) 中南大学中央高校基本科研业务费专项资金(2016zzts051)
【分类号】：F532.8

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