城市危险品道路运输网络的设计和分析  

Design and Analysis of Hazardous Materials Transport Network of Urban Cities

作　　者：胡鹏[1] 帅斌[1] 吴贞瑶 

机构地区：[1]西南交通大学交通运输与物流学院

出　　处：《公路交通科技》2017年第9期116-122,共7页Journal of Highway and Transportation Research and Development

基　　金：国家自然科学基金项目(71173177);四川省科技厅苗子工程项目(2014-013)

摘　　要：为了更好地研究道路危险品运输网络的拓扑特性,通过分析危险品道路运输路径选择模型特点和所面临的问题,建立了适用于危险品道路运输网络的、规范的、准确的一套体系和标准。以成都市为例,使用Arc GIS和Matlab软件初步设计和建立了道路危险品运输拓扑网络,统计了相关拓扑基础数据,并仿真生成相同规模的随机拓扑网络。对比发现:成都市危险品道路运输拓扑网络具有随机网络特性,主要表现为节点度频次分布服从泊松分布。分别通过线性拟合、高斯拟合、幂律拟合,以拟合优度值选择发现:节点度累积概率分布服从泊松分布;节点度分布中的主要集中节点度为2~4,平均节点度为2.968 2。这些表现特征可为危险品运输相关政府部门、运输公司提供危险品道路运输网络设计相关的科学有效方法。In order to study the topological characteristics of road HMT network better,by analyzing the property of path-choice model of road HMT and its problems,a normative and accurate system and standard which is appropriate for road HMT network is built. Taking Chengdu City for example,the topological network of HMT is initially designed and constructed by using Arc GIS and MATLAB software,the statistics of related basic topological data is made,and a random topological network of the same size is generated. It is found from the comparison that the HMT topological network of Chengdu City has stochastic network property,showing that the frequency of node degrees follows Poisson distribution. Through linear fitting,Gaussian fitting and power law fitting,it is found that（ 1） the cumulative probability of node degrees follows a Poisson distribution if the R^2 is a decision-making condition;（ 2） the node degree distribution is concentrate on node degrees from 2 to 4,and the average of node degrees is 2. 968 2. These characteristics are helpful to provide the related scientific and effective method of designing road HMT network for the related government department and transport companies.

关 键 词：交通工程 拓扑网络 仿真模拟 危险品运输网络 网络设计 

分 类 号：U492.336.3[交通运输工程—交通运输规划与管理]