“万州-开州-云阳”货车流联系格局与影响因素

Research on“Wanzhou-Kaizhou-Yunyang”Truck Flow Network Pattern and Influencing Factors

【目的】研究三峡库区(重庆段)经济核心区即以万州为中心所形成的万州-开州-云阳城市组团(以下简称"万开云"板块)的货流联系格局,并进一步探讨影响该区域货流的主要因素。【方法】统计研究区内11个高速公路收费站进出站货车原始数据、企业空间位置数据,运用社会网络分析、回归分析等方法探讨货运联系格局及影响因素。【结果】万州各收费站的中心性位居前列。万州与开州收费站是网络中的核心部分。万州与开州之间的小团体结构较稳定且成员不断壮大。【结论】研究表明:1)万州与开州是"万开云"板块的核心区域;2)"万开云"板块的空间范围应进行扩容,梁平县是该区域稳定的联系成员;3)万州是"万开云"板块的核心城市,扮演着"守门人"和"联系窗口"的角色,本区域其他区县均是以万州为纽带而发生联系,主城与开州、云阳的联系也通过万州中转;4)万州与开州是区域中的核心部分,云阳则属于边缘部分。核心与边缘之间的互动还处于边缘为核心提供建材、煤炭等初级产品和原材料的协作。此外,行政中心及由此带来的金融业、基本公共服务业也是激发货流的重要因素。

[Purposes]In order to reveal the cargo flow connection pattern of the Wanzhou-Kaizhou-Yunyang city group formed by the economic core area of the Three Gorges reservoir area(Chongqing Section),which is centered on Wanzhou,and further explore the main factors affecting the cargo flow.[Methods]It uses the raw data of the trucks entering and leaving the 11 highway toll stations in the study area,and the spatial location data of the enterprise.It also uses social network analysis,regression analysis and other methods to explore the freight connection pattern and influencing factors.[Findings]The centrality of all toll stations in Wanzhou ranked first.Wanzhou and Kaizhou toll stations are the core of the network.The structure of the small group between Wanzhou and Kaizhou is stable and its members are growing.[Conclusions]Research shows that:1)Wanzhou and Kaizhou are the core areas of Wan-Kai-Yun city group.The toll stations of Wanzhou and Kaizhou not only rank the top in terms of centrality,but also have the strongest internal connection.In addition,it can be seen from the analysis of agglomerated subgroups that the relationship between Wanzhou and Kaizhou truck flows is still continuously strengthening.2)The space planning scope of the Wan-Kai-Yun city group should not be limited to only three districts and counties,but Fengjie and Liangping should be included in the planning scope for overall consideration.3)Wanzhou is the core city of the"Wan-Kai-Yun"city group,playing the role of"gatekeeper"and"contact window".The other districts and counties in the region are connected by their links,Wan-Kai-Yun’s truck connection network is distributed in a star shape with Wanzhou as the core.Wanzhou controls the main contacts inside and outside the urban group.The main city’s connections with Kaizhou and Yunyang are also transferred through Wanzhou.4)Wanzhou and Kaizhou are the core parts of the region,while Yunyang is the marginal part.The interaction between the core and the edge is at the low phase,that is the marginal part provide building materials,coal and other primary products and raw materials for the core."Wan-Kai-yun"’s internal cargo flow is mainly based on the transportation of primary products such as building materials and coal.Agriculture as the primary industry,manufacturing in the secondary industry,real estate,and the wholesale and retail industry in the tertiary industry have failed to make a significant contribution to the flow of goods.Regional collaboration is not only limited in scope but relatively elementary.In addition,the administrative center and the resulting financial and basic public service industries are also important factors in stimulating cargo flow.While construction,finance,electricity,heat,gas and water production and supply,mining,culture,sports and entertainment have a higher contribution to cargo flow.It shows that Wan-Kai-Yun’s cargo flow connection is still relatively basic.In addition,the administrative center and the resulting financial and basic public service industries are also important factors in stimulating cargo flow.