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作 者:邵海雁 徐晨璐 钟业喜[1] SHAO Haiyan;XU Chenlu;ZHONG Yexi(School of Geography and Environment, Jiangxi Normal University, 330022, Nanchang, PRC)
机构地区:[1]江西师范大学地理与环境学院
出 处:《江西科学》2019年第3期350-358,共9页Jiangxi Science
基 金:国家自然科学基金项目(41561025)
摘 要:基于列车时刻表中2009年、2011年、2013年、2015年、2017年长三角城市群的铁路客运班次数据,运用ArcMap10.2平台构建铁路交通网络,结合社会网络分析法,从点度中心度方面对长三角铁路交通网络演变特征进行分析。结果表明:1)长三角城市群铁路交通网络以上海和南京为核心,以苏州、无锡、杭州、常州、镇江和嘉兴为次核心,呈快速发展的多中心结构;2)铁路交通联系空间分布不平衡,主轴与次轴共同构成城市铁路网络,以上海-苏州-南京-镇江构成的四边形网络联系最为紧密,上海-南京、苏州-镇江两条对角线为核心轴线,带动域内无锡和常州的发展;3)以上海-南京-杭州构成的三角网络,城市交通联系强度不同,上海-南京线>上海-杭州线>南京-杭州线;4)2009-2017年,沪宁线、沪杭线始终处于点度中心度的高值集聚区域,地区发展主轴地位稳固;湖州、宁波和台州铁路客运需求增长较快,点度中心度得到不断提升;5)2017年,上海、南京、杭州3个核心城市点入度大于点出度,聚集能力明显强;苏州、镇江、绍兴等城市由极化向扩散转变,城市以辐射功能为主。Based on the railway passenger shift data of the 2009, 2011, 2013, 2015 and 2017 long triangle urban agglomerations in the train schedule, the ArcMap 10.2 platform is used to construct the railway transportation network, combined with the social network analysis method, from the perspective degree. The evolution characteristics of the triangular railway transportation network are analyzed. The results show that: 1)The railway transportation network of the Yangtze River Delta urban agglomeration is centered on Shanghai and Nanjing, with Suzhou, Wuxi, Hangzhou, Changzhou, Zhenjiang and Jiaxing as the core, showing a rapidly developing multi-center structure. 2)The distribution of railway traffic links is not balanced, and the main axis and the secondary axis together form the urban railway network. The quadrilateral network consisting of Shanghai-Suzhou-Nanjing-Zhenjiang is the most closely connected. The two diagonal lines of Shanghai-Nanjing and Suzhou-Zhenjiang are the core axes, which drive the development of Wuxi and Changzhou in the region. 3)The triangle network consisting of Shanghai-Nanjing-Hangzhou has different intensity of urban traffic connection, Shanghai-Nanjing Line>Shanghai-Hangzhou Line>Nanjing-Hangzhou Line. 4)From April 2009 to 2017, the Shanghai-Nanjing line and the Shanghai-Hangzhou line have always been in the high-value gathering area of the central point of the point. The regional development spindle position is stable;the passenger demand of the Huzhou, Ningbo and Taizhou railways has increased rapidly, and the point center has been continuously improved. 5)In 2017, the three core cities of Shanghai, Nanjing and Hangzhou were more than the point-out degree, and the gathering ability was obviously strong;the cities of Suzhou, Zhenjiang and Shaoxing changed from polarization to diffusion, and the city mainly radiated.
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