长江经济带三大城市群城际客运联系网络结构对比分析

doi:10.3969/j.issn.1004-9479.2021.01.2019716

摘要/Abstract

摘要：

“流空间”是人文-经济地理学关注的重要议题。基于城际客运交通流数据，运用ArcGIS空间分析、城市联系强度模型等方法对长江经济带长三角、长江中游、成渝三大城市群城际客运联系网络结构特征进行刻画，结果表明：①长三角城市群城际客运联系网络以上海市为主核心，苏州、南京、杭州为次核心，通过核心城市向外延伸的交通轴线组成相互之间联系紧密的城市网络，西部与南部地区的联系相对较弱；长江中游城市群城际客运联系网络以武汉、长沙、南昌三个省会城市为核心节点，周边次中心城市与其省会交通联系紧密，但城市间跨省联系较弱，本省城市仅与另外两个省会城市存在突出的向心性联系；成渝城市群高等级联系网络大多指向成都、重庆主城区，次级区域中心城市发育不足，成渝城市主轴线在强交通联系推动下发育成型，但川渝接壤地区的城际客运联系存在“断层”。②长江经济带三大城市群在网络化演化进程中，具有城市群“等级-网络”的基本演化特征，其中成渝城市群、长江中游城市群仍处于“核心-边缘”的双核或三核结构，长三角城市群已出现多核网络化发展趋势。③高速铁路作为新兴要素流，对公路、普通铁路等传统要素流具有明显的替代效应，增强了三大城市群核心城市向外延伸的轴线联系，是驱动城市群城际客运联系网络结构演变的新动力。

关键词: 城市群, 交通流, 城际客运, 联系网络, 长江经济带

Abstract:

Space Flow is an important issue of human-economic geography.This paper uses spatial analysis, urban connection intensity model and other methods to describe the structural characteristics of the intercity connection network of the Yangtze River Delta, the middle reaches of the Yangtze River, and Chengdu-Chongqing Urban Agglomeration based on the data of traffic flow.Results are as follows: 1) The intercity network of the Yangtze River Delta urban agglomerations is mainly composed of Shanghai, followed by Suzhou, Nanjing and Hangzhou, but the connection between the west and south is relatively weak.Intercity network of urban agglomeration in the middle reaches of the Yangtze River takes three provincial capitals of Wuhan, Changsha and Nanchang as the core nodes. The surrounding sub central cities are closely connected with their provincial capitals, but the connection between cities is weak.Moreover, the provincial cities only have prominent centripetal connection with other capitals.Most of the high-level contact networks of Chengdu Chongqing urban agglomerations point to the main urban areas of Chengdu and Chongqing, and the sub regional central cities are underdeveloped.The main line of Chengdu Chongqing urban agglomerations is developed and shaped under the promotion of strong traffic links, However, there are few intercity connections between provincial fringe. 2) Three major urban agglomerations in the Yangtze River Economic Belt conform to the basic evolution trend of "level network".For example, Chengdu Chongqing urban agglomeration and the urban agglomeration in the middle reaches of the Yangtze River are still in the "core edge" dual core or three core structure, and the Yangtze River Delta urban agglomeration has appeared trend of multi-core network development.3) The emerging factor flows such as high-speed railway have obvious substitution effect on the traditional factor flows dominated by highway and common railway,which enhance the axis connection of core cities, becomes a new driving force for evolution of intercity connection network structure of urban agglomerations.

Key words: urban agglomeration, traffic flow, intercity passenger transport, contact network, the Yangtze River Economic Belt

涂建军, 毛凯, 况人瑞, 李南羲. 长江经济带三大城市群城际客运联系网络结构对比分析[J]. 世界地理研究, 2021, 30(1): 69-79.

Jianjun TU, Kai MAO, Renrui KUANG, Nanxi LI. A comparative analysis of the intercity passenger transport network structure of three urban agglomerations in the Yangtze River Economic Belt[J]. World Regional Studies, 2021, 30(1): 69-79.

图/表 4

图1 长三角(a)、长江中游(b)、成渝(c)城市群公路运输网络

Fig.1 Highway transportation network in the Yangtze River Delta (a), the middle reaches of the Yangtze River (b) and the Chengyu (c) urban agglomerations

图2 长三角(a)、长江中游(b)、成渝(c)城市群普通列车网络

Fig.2 Ordinary train network in the Yangtze River Delta (a), the middle reaches of the Yangtze River (b) and the Chengyu (c) urban agglomerations

图3 长三角(a)、长江中游(b)、成渝(c)城市群高速列车网络

Fig.3 High-speed train network in the Yangtze River Delta (a), the middle reaches of the Yangtze River (b) and the Chengyu (c) urban agglomerations

图4 长三角(a)、长江中游(b)、成渝(c)城际客运联系空间网络

Fig.4 The intercity network of the Yangtze River Delta (a), the middle reaches of the Yangtze River (b) and the Chengyu (c) urban agglomerations

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