The Urban Network Structure Of The Yangtze River Delta Region Based On The Head-to-branch Agencies Of Express Delivery Companies

Under the background of rapid development of highways,high-speed railways and information technology,the links between cities are closer.Cities are stimulating in competition,and the flow of factors between cities,such as commodities,technology,and population,is exchanged between cities,and the links between cities are increasing.The urban network formed by them is today's urban geography and economic geography.Hot topics of concern.The city plays a node role in the global economic network.It is a transit point for inter-city goods,population,capital and other factors.The relationship between cities is gradually changing to network,and express delivery companies as inter-city material flows and capital flows.The main carrier has a profound impact on the relationship between cities.At present,the research of foreign scholars mainly conducts research on urban networks from the perspective of productive service enterprises and at the global regional scale.Domestic scholars study urban networks from the perspectives of transportation routes,information industry,and population evolution.From the perspective of express delivery-sub-institutions,there are few studies on urban networks,and only some urban economic development factors are used as evaluation index systems to measure urban logistics.Conduct an evaluation.As the region with the highest level of economic development in China,the Yangtze River Delta region has become more and more reasonable in terms of express service level and space layout.Therefore,this paper systematically analyzes the urban network structure and characteristics of the Yangtze River Delta region by constructing a spatial organization network of major express delivery companies in the Yangtze River Delta region.On the one hand,it can improve urban network research,enrich urban network theory,and provide useful supplements for network organization theory and spatial interaction theory.On the other hand,it is convenient to improve the timeliness of express delivery services and strengthen the links between cities,which will help guide the development of cities,enterprises and regions in the Yangtze River Delta region,and promote the structural and functional transformation of the Yangtze River Delta region.This paper obtains the city population,economic data,express logistics and otherrelated data through the city statistical yearbooks.Firstly,it introduces the development of express delivery industry in the Yangtze River Delta region.According to the express market share,the top ten express delivery companies are selected to obtain the location data of each express delivery enterprise node.To lay the foundation for the inquiry of the article.Secondly,it analyzes the express network and its spatial structure in the Yangtze River Delta region.Through the spatial analysis method,it explores the spatial distribution of the express transfer enterprise regional transshipment center,urban transit and service stores,and then builds the express network in the Yangtze River Delta region.Based on the data of the total-sub-institution of express delivery,the spatial density analysis method of the express node is explored by the nuclear density spatial analysis method,and the urban network of the Yangtze River Delta region is analyzed by means of comprehensive evaluation of city express delivery level,urban network space connectivity and time-space accessibility.Spatial organization and spatial characteristics.Finally,through factor analysis,cluster analysis and regression analysis,the hierarchical characteristics of the comprehensive development level of the express delivery enterprises in the Yangtze River Delta region are obtained.The correlation between the express network and the urban network is obtained through linear fitting,and the urban network of the Yangtze River Delta region is analyzed.Influencing factors.This paper is divided into seven chapters.The first two chapters are mainly a large number of literature review and review,including the background of the topic,the purpose and significance of the research,related research trends,and research content.The third chapter mainly introduces the development status,research methods and data sources of express delivery enterprises in the Yangtze River Delta region.The fourth chapter is mainly the express network and its spatial structure in the Yangtze River Delta region,and then build the express network.The fifth chapter is mainly based on the data of express total-sub-institutions,analyzing the characteristics of urban cyberspace in the Yangtze River Delta region.The sixth chapter mainly analyzes the hierarchical characteristics of the comprehensive development level of the express delivery enterprises in the Yangtze River Delta region,and analyzes the influencing factors of the urban network in the Yangtze River Delta region.The seventh chapter is the main conclusions and discussion of this paper.found in study:(1)The express area transshipment centers in the Yangtze RiverDelta region are mainly concentrated in Shanghai,Hangzhou and Nanjing;From the perspective of urban transition,except for Lianyungang,Suqian,and Zhoushan,there are no urban transit stations,and the rest of the cities are distributed,and the spatial layout axis is “M”-type;From the perspective of the concentration of express stores,Shanghai is the core area of express delivery and distribution,and the intensity of the gathering is highly consistent with the main railways and highways in the region,and the overall characteristics are “Z”.(2)In the “line” analysis of urban networks in the Yangtze River Delta region,Shanghai has the highest degree of urban network connectivity with other cities,and the strongest connection with Suzhou;Hangzhou ranks second in network connectivity and third in Suzhou.Time accessibility factor and space communication in "central and peripheral" network analysis The degree of achievement coefficient is relatively consistent.Generally divided into "central zone,"transition zone","outer zone",from the central zone to the periphery,the level of access gradually decreases.(3)The characteristics of urban networks in the Yangtze River Delta region have different levels of multi-level,multi-center,and network integration.In the comprehensive evaluation of express delivery level,the lower the level,the more the number of cities.On the contrary,the smaller the number,the higher the level of express logistics development.The lateral characteristics are mainly characterized by the distribution of steps from the center to the north and south sides.(4)On the basis of the analysis of the urban network in the Yangtze River Delta based on the express enterprise network,among the influencing factors of the urban network,the total value of GDP,the size of the urban population,and the disposable income of urban residents have significant connectivity to the urban network.The interpretation of time and space has not passed the test.Due to the improvement of the level of traffic integration in the Yangtze River Delta,the impact of the spatial distance between cities has been partially weakened.