地理学报

地理学报 ›› 2010, Vol. 65 ›› Issue (10): 1287-1298.doi: 10.11821/xb201010013

• 交通地理 • 上一篇    下一篇

京沪高铁对区域中心城市陆路可达性影响

蒋海兵1,2, 徐建刚1, 祁毅1   

  1. 1. 南京大学地理与海洋科学学院,南京210093
    ;
    2. 盐城师范学院城市与资源环境学院,盐城224002
  • 收稿日期:2009-12-20 修回日期:2010-05-12 出版日期:2010-10-20 发布日期:2010-10-20
  • 通讯作者: 徐建刚(1960-), 男, 江苏淮安人, 博士生导师, 主要研究方向为数字城市规划。E-mail: xjg129@sina.com
  • 作者简介:蒋海兵(1978-), 男, 江苏建湖人, 博士生, 研究方向为城市与区域规划。E-mail: haibingjiang1@163.com
  • 基金资助:

    国家自然科学基金项目(40871261; 40371038);江苏省高校自然科学研究项目(10KJD170003)

The Influence of Beijing-Shanghai High-speed Railways on Land Accessibility of Regional Center Cities

JIANG Haibing1,2, XU Jiangang1, QI Yi1   

  1. 1. School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China
    ;
    2. School of Urban and Resource Environment, Yancheng Teacher's College, Yancheng 224002, Jiangsu, China
  • Received:2009-12-20 Revised:2010-05-12 Online:2010-10-20 Published:2010-10-20
  • Supported by:

    National Natural Scince Foundation of China, No.40871261; No.40371038; Natural Scince Foundation of Jiangsu Province, No.10KJD170003

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被引次数

582

摘要：

针对目前可达性研究技术的局限，设计网络分析与成本栅格加权集成法，并应用该方法生成高铁通车后城市等时圈图。利用日常可达性、潜力值与加权平均时间，比较有无京沪高铁两种情景下京沪地区中心城市可达性空间格局变化，探讨高铁对中心城市可达性的影响，并采用场强模型计算高铁通车前后中心城市腹地范围。结果显示：高铁将扩展等时圈范围，实现城市日常可达性整体大幅优化，形成非均衡的时间收敛空间。高铁站点沿线成为时间收敛的最大受益者，它们的加权平均时间与潜力值变率高。在不同地理尺度下，高铁降低加权平均时间均衡性，对潜力值均衡性影响不一致。高铁扩大北京与上海的腹地，增强其区域辐射力。针对区域可达性变化，可达性变率高的城市可适时调整产业类型，变率低的城市可通过加强快速交通网络与高铁的衔接来提高可达性。

关键词: 京沪高铁, 集成法, 可达性, 中国

Abstract:

Since some limitations existed in the current accessibility method, integrated method of network analysis and cost weighted raster analysis were designed and applied to generate city isochronous rings after the operation of high-speed railways. The valuation of accessibility was conducted with three indicators, i.e. daily accessibility, potential model, and weighted average time. After the valuation, differences between accessibility patterns with scenarios with and without high-speed railways were analyzed, and influences of the high-speed railways on center cities' accessibility were discussed. Changes in hinterlands of the center cities were also calculated with field intensity model. The results indicated that high-speed railways would expand the isochronous rings, and realize significant optimization of urban daily accessibility and form uneven time convergence space. Sites along the high-speed railways became the biggest beneficiaries of time convergence, as the variability of their weighted average time and potential values were high. In different geographical scales, the high-speed railways reduced the equilibrium of weighted average time, and their influences on the equilibrium of potential values are inconsistent. The high-speed railways would expand the hinterlands of Beijing and Shanghai, and strengthen their regional influences. As accessibility changes differed in different regions, the industrial structure should be adjusted in regions with high accessibility variability, while regions with low accessibility variability should improve rapid transit networks, and increase accessibility by strengthening their links with high-speed railways.

Key words: Beijing-Shanghai high-speed railways, integrated method, accessibility, China