空间扩容背景下长三角城市群陆路交通联系时空演化

doi:10.13959/j.issn.1003-2398.2022.03.017

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Abstract Convenient transportation is the base for urban agglomerations to expand area. Taking each county unit of the Yangtze River Delta Urban Agglomeration as the research object, and targeting at the prefecturelevel cities, 16 in 2005 and 26 in 2019, this study comprehensively contrasts and analyses how each object connects with central cities and prefecture-level cities by land transportation to explore how the land transportation connection evolves under the background of urban agglomeration expansion.Conclusionsare as follows: 1) Area expansion of the Yangtze River Delta Urban Agglomeration brings about longer average travel time by highway from research units to central cities and prefecture-level cities. 2) For the railway network of the Yangtze River Delta Urban Agglomeration, there is no tight correspondence between the unit connectivity and intensity. While urban units show higher intensity of connections and denser distribution than county ones, the connectivity of units in research region tends to be less obvious. 3) From the perspective of both highways and railways, in 2005, the average travel time by railway from each county to central cities or prefecture-level cities is in accordance with that by highway network. However, owing to the rapid expansion of high-speed railway network, the situation changes a lot in 2019 when the expansion decreases the average travel time of all the units and improves the balance in the research region.

Key words： land transportation accessibility characteristics of network connectivity area expansion Yangtze River Delta Urban Agglomeration

Received: 24 June 2021

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K902

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	WU Wei
	TANG Zhao-pei
	LIANG Shuang-bo
	CAO You-hui

Cite this article:

WU Wei,TANG Zhao-pei,LIANG Shuang-bo等. SPATIO-TEMPORAL EVOLUTION OF LAND TRANSPORTATION CONNECTION IN THE YANGTZE RIVER DELTA URBAN AGGLOMERATION UNDER THE BACKGROUND OF AREA EXPANSION[J]. HUMAN GEOGRAPHY, 2022, 37(3): 163-171,182.

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http://rwdl.xisu.edu.cn/EN/10.13959/j.issn.1003-2398.2022.03.017 OR http://rwdl.xisu.edu.cn/EN/Y2022/V37/I3/163

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