地理研究 ›› 2017, Vol. 36 ›› Issue (12): 2321-2331.doi: 10.11821/dlyj201712004

• 研究论文 • 上一篇    下一篇

中国大陆交通网络通达性演化

梁宇(), 郑新奇(), 宋清华, 白书建   

  1. 中国地质大学(北京)信息工程学院,北京 100083
  • 收稿日期:2017-07-25 修回日期:2017-09-10 出版日期:2017-12-15 发布日期:2018-01-18
  • 作者简介:

    作者简介:梁宇(1991- ),男,河北定州人,硕士,主要从事空间分析模型与应用、土地信息技术与应用等方面研究。E-mail:ly1112926@cugb.edu.cn

  • 基金资助:
    国家国际科技合作专项项目(2015DFA01370)

Analysis on the evolution of traffic network accessibility in Chinese Mainland

Yu LIANG(), Xinqi ZHENG(), Qinghua SONG, Shujian BAI   

  1. School of Information Engineering, China University of Geosciences, Beijing 100083, China
  • Received:2017-07-25 Revised:2017-09-10 Online:2017-12-15 Published:2018-01-18

摘要:

为了分析中国大陆交通网络发展的通达性,诊断其特征与存在问题,为优化路网规划提供支持,将中国大陆铁路、公路网络作为研究对象,以2007年、2016年和2030年为时间节点,将空间句法模型进行扩展以实现其在宏观尺度的应用,分析研究区通达性演化。首先对交通网络分类,对上述时间节点构建空间句法模型;其次采用通达度衡量轴线通达性水平并分析其变化。研究发现:① 通达性中心大致位于京津冀城市群、长三角城市群、成渝都市圈为顶点的三角形区域内;② 由上述顶点和珠三角城市群构成的“十”字型交通网络结构特征正在形成,通达性较好的轴线应逐步实现线状、面状分布;③ 提升交通网络通达性中心区位应在于强化上述顶点构成的“钻石型”交通网络结构。

关键词: 通达性, 空间演化, 空间句法, 集成度, 交通网络

Abstract:

In order to analyze the accessibility of the traffic network development in Chinese Mainland, examine its characteristics and existing problem and provide the support for optimizing the traffic network plans, this paper took the railway and highway network in Chinese Mainland as the research object, the year of 2007, 2016 and 2030 as the time nodes, and extended the space syntax model to realize the macro scaled application and analyzed accessibility evolution in research area. Firstly, we divided the traffic network into four types, classified the traffic network and built the space syntax model on these time nodes. Secondly, we judged the axes level with accessibility and analyzed its changes. We used major cities to break long axis and the experimental result showed that the extended model was more applicable. Later, the space syntax model was constructed for these time nodes and the space syntax indexes were calculated by programming. In order to make qualitative estimation, the accessibility of the axis was measured by using the value of connectivity and local integration so that the accessibility of traffic network on these time nodes was analyzed. The following conclusions can be drawn as follows: (1) China's regional accessibility center was not obvious in comprehensive consideration of a variety of transportation networks. Overall, the accessibility centers were located in urban agglomerations around the Beijing-Tianjin-Hebei Region, the Yangtze River Delta, and Chengdu-Chongqing region. The axis value of global integration would continue to rise in the future. (2) With Pearl River Delta Urban Agglomeration as a point, the traffic network structure was forming a crossing pattern, and axis with good accessibility should gradually become the linear and planar distribution. (3) To improve the accessibility of traffic network was to intensify this diamond-type structure. Besides, high-speed railways and expressways should play major roles in traffic network expansion. We extended the traffic network of high-speed railway and expressway along development axes and tried to verify the conclusion. The result showed that the axial distribution pattern with good accessibility would become basically planar distribution so that the expansion plan of traffic network in this paper was turned out to be true.

Key words: accessibility, spatial evolution, space syntax, integration degree, traffic network