铁路物流系统薄弱性评价参数研究——基于结构方程模型分析法.docVIP

铁路物流系统薄弱性评价参数研究——基于结构方程模型分析法 铁路物流系统薄弱性评价参数研究 — — 基于结构方程模型分析法 温 蕾 (太原理工大学，山西 太原 030024) 摘 要：铁路物流各个子 系统之间基于空间、时间、成本、资源及运行等各方面之 间的因果关系而紧密联 系在一起 ，共同 构建了纷繁庞大的铁路物流系统。如何用科学的方法对铁路物流系统做出合理的评价，最重要的就是分析各类衡量指标的确定 与研究。文章基于利用结构方程模型对铁路物流系统的各个子系统进行分析和梳理 ，通过数学模型运算的方法找 出静态显变因 子与动态潜变因子之间的关系，确立整个铁路物流系统的评价指标权重，反映出铁路物流各个子 系统之间的权重比例，进一步 具体体现出铁路物流系统的薄弱环节所在，通过计算得出铁路物流系统的薄弱性评价指标，以反映出整个铁路物流系统的动态 稳定性，从而实现铁路物流系统效益最大化，使企业提高自身的竞争实力。 关键词 ：铁路物流；物流系统；低碳物流；物流网络 中图分类号：17530 文献标识码：A 文章编号：1004—292X(2015)05—0021—05 Analysis of the W eak Coeffi cient of Railway Logistics System — — — Based on the Structural Equation Model WEN Lei (T~yuan University of Technology，Tmyuan Shanxi 030024，China) Abstract：The subsystems of railway logistics are closely associated with each other based on space， time， cost，resource and operation and SO on．Various aspects of the causal relationship， builds a huge and complicated railway logistics system．For using the scientific method to make reasonable evaluation on railway logistics system，the most important thing is to analyze all kinds of measure and research．This paper adopts the structural equation model to filter each subsystem of railway logistics system SO as to find out the relationship between the dynamic creep factors and static variable factors．It reflects the weight ratio between the various subsystems rail logistics and further reflects the specific weaknesses in railway logistics system．Thus， evaluation index weight of the whole railway logistics system is established and the evaluation index of the weakness of the railway logistics system is calculated to reflect the dynamic stability of the railway logistics system．Finally，the effectiveness of rail logistics system is maximized and the enterprises also improve their competitiveness． Key words： Railway logistics；Logistics system；Low carbon logistics；Logistics network 一 、 引言 随着我国社会经济的发展，铁路也必然是最重要的助力之 一 。 由于我国国土幅员辽阔，经济联系跨度和运输长度都需要 有一种强而有力的运输模式作为纽带，而铁路运输在面对大宗 货物和长距离运输，一直是我国客货交通运输的骨干和中坚力