A transportation hub is the key link in the construction of the comprehensive three-dimensional transportation corridor of the Yangtze River Economic Belt,and is the basic factor responsible for the promotion of this belt.A high-speed railway hub has the"last kilo-meter of time-space compression"effect and is the key to building an efficient,convenient,modern,and comprehensive transportation system.This study constructed a model for measuring the connection-distribution performance of the high-speed railway hub,deter-mined the connection-distribution performance of the urban high-speed railway hub in the Yangtze River Economic Belt,and analyzed its spatial differentiation characteristics,further revealed the influencing mechanism of the connection-distribution performance of the high-speed railway hub.The main results are as follows:(1)The connection-distribution per-formance of the high-speed railway hub in the Yangtze River Economic Belt presented an"olive-shaped pattern"grade structure with two small ends and a large middle section,that is,the number of high-speed railway stations with high performance and average performance was small,and the number of high-speed railway stations with good performance and me-dium performance was large.(2)The connection-distribution performance of the high-speed railway hub in the Yangtze River Economic Belt showed a regional differentiation pattern of"high in the east and low in the west"and"high in the north and low in the south",and showed an urban agglomeration differentiation pattern of"high in the core areas but low in the mar-ginal areas";moreover,spatial differences were prominent in the distribution of nine evalua-tion indexes of the connection-distribution performance of the high-speed railway hub.(3)GDP,urbanization rate,city level,station passenger flow and frequency of shuttle bus were key driving factors affecting the connection-distribution performance of the high-speed railway hub.At the same time,there were significant differences in the key driving factors for the connection-distribution performance grades of high-quality,good,medium and average.

WANG Degen;XU Yinfeng;ZHAO Meifeng

School of Architecture,Soochow University,Suzhou 215123,Jiangsu,China;School of Geographic and Environmental Sciences,Tianjin Normal University,Tianjin 300387,China

地理学报（英文版）

[1]WANG Degen;XU Yinfeng;ZHAO Meifeng-.Spatial differentiation and influence mechanism of the connection-distribution performance of urban high-speed railway hub in the Yangtze River Economic Belt)[J].地理学报（英文版）,2022(12):2475-2502

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