基于交通运输成本的环鄱阳湖区“轴 辐”物流网络构建研究

针对湖域物流体系的特征，提出了基于交通运输成本的“轴 辐”物流网络分析思路，考虑到多种交通运输因素提出了科学测度综合分析方法。通过建立指标体系，得到分析结果确定物流网络各等级轴心城市，采用加权平均旅行时间测度时间成本，利用势能模型确定轴心辐射范围，构建环鄱阳湖区“轴 辐”物流网络体系。研究认为：环鄱阳湖区已形成以南昌市为一级轴心，九江市等5个县市区为二级轴心，其他县市区为三级轴心的物流网络；环鄱阳湖区物流网络呈现“一核五心”的运输成本空间格局；轴心城市之间已形成4条主要的物流轴线，二级轴心城市辐射范围与实际的地级市行政区划范围基本吻合，三级轴心城市辐射范围与各县市区的行政区划基本对应；环鄱阳湖区物流水平整体上呈现“北高南低、西强东弱、中部突出”的空间格局，并出现北部区域不均衡、东部部分区域较弱、南部整体较弱的情况

CONSTRUCTION OF HUB-AND-SPOKE LOGISTICS NETWORK BASED ON TRAFFIC COST IN THE AREA AROUND POYANG LAKE

The development of the regional logistics industry plays an important role in the development of economic in the area around the Poyang Lake, and how to reduce logistics cost is the key of the industry. Thus, scientifically constructing a logistics network has a significant impact on the economic spatial pattern there. According to the characteristics of logistics system around lake, this paper puts forward the methods about hub and spoke logistics network based on traffic cost, and proposed the scientific analysis method considering the various transportation factors . The grid network analysis method is more scientific, and the method of potential energy is improved than the traditional model. In this paper, thirteen indicators were selected to establish a logistics network evaluation index system, and identify for each research unit of corresponding logistics comprehensive strength index with two main factors was identified. According to the index, the different levels of hub city were sorted and determined. Moreover, based on the weighted average travel time, the time cost for radiation limits of a hub city was measured by the potential energy model. Thus, it enabled the construct of hub and spoke logistics network in the area around the Poyang Lake. This study indicated that the logistics network had been formed in area around the Poyang Lake, with Nanchang for the first level hub city, Jiujiang, Nanchang County, Jingdezhen, Fuzhou, Zhangshu for the second level, and other counties for the third level. The space pattern of logistics network looked like Nanchang as the nuclear, and Jiujiang, Nanchang County, Jingdezhen, Fuzhou, Zhangshu as the five hearts in the area around the Poyang Lake. The radiation scope of Nanchang included all of the area around the Poyang Lake, and other five hub cities included the area around themselves. From the incidence of the logistics network, four main logistics axis had formed, such as Nanchang to Jiujiang, Nanchang to Jingdezhen, Nanchang to Fuzhou, and Nanchang to Zhangshu. It is concluded that the radiation limits of second and third level hub city matched well with their administration boundary. For overall distribution of different region, the level of logistics network showed that the north and western region was high, the south and east region was low, the central region was outstanding in the area around the Poyang Lake. Otherwise, the logistics network indicated that north area was not balanced, part of east area and south area was weak. Lastly, this paper puts forward optimizing policy suggestions to the development of hub and spoke logistics network for the area around the Poyang Lake