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中国铁路货运车流网网络特性分析

发表时间:2013-06-30  浏览量:997  下载量:505
全部作者: 范振平
作者单位: 北京交通大学机械工程博士后流动站
摘 要: 以中国铁路货运车流网(以下简称车流网)为背景,运用复杂网络理论分析其网络特性,测算了车流网的度、强度、度分布熵、强度分布熵、权重分布熵、集群系数、富人集团系数以及同类性系数等指标。计算结果显示,车流网的节点度平均值为6.64,强度平均值为1 087.43,强度和度呈正相关。度分布熵、强度分布熵和权重分布熵均接近于理论最大值,表明列车编组去向分布、车站出发车流量分布以及编组去向车流量分布都处于相对均衡的状态。车流网拓扑结构和权重结构的集群系数平均值分别为0.488和0.491,富人集团现象显著,属于同类混合网络。
关 键 词: 铁路运输管理;复杂网络;铁路货运;车流网;网络特性
Title: Characteristic analysis of Chinese railway freight car flow network
Author: FAN Zhenping
Organization: Postdoctoral Research Station of Mechanical Engineering, Beijing Jiaotong University
Abstract: This paper took Chinese railway freight car flow network as background, used complex network theory to analyze the network characteristics, and measured the parameters of the degree, strength, the entropy of degree distribution, the entropy of strength distribution, the entropy of weight distribution, cluster coefficient, the rich club coefficient and assortativity coefficient of the car flow network. The results showed that the network average degree was 6.64, average strength was 1 087.43, strength and degree were positively correlated. The entropy of degree distribution, strength distribution and weight distribution were closed to the theoretical maximum, indicating that the train distribution, station car flow distribution and train car flow distribution were relatively balanced. Average cluster coefficients of topology and weight network structure were respective 0.488 and 0.491, suggesting rich club phenomenon was evident and the network was assortative mixed.
Key words: rail traffic mangement; complex network; railway freight transportation; car flow network; network characteristics
发表期数: 2013年6月第12期
引用格式: 范振平. 中国铁路货运车流网网络特性分析[J]. 中国科技论文在线精品论文,2013,6(12):1095-1101.
 
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