复杂交通网络中救援点与事故点间的路段重要性评价模型研究

对应急救援网络中的各相关路段的重要性进行快速准确地评价,对于应急交通计划、指挥与控制等交通服务具有十分重要的价值.本文针对目前该问题相关研究存在的一些缺陷,提出了新的算法思想,并设计了算法模型.首先,设计了复杂交通网络连通子图的矩阵算法,寻找多救援点和多事故点间的最大连通子路网;其次,根据该最大连通子路网构建GERT(Graph Evaluation and Review Technique)网络模型,针对该模型中人们对路段的选择概率设计了基于人们的理性和经验的概率选择模型,从而能够较好地反映人们的交通心理和行为(尤其是应急交通心理和交通行为);最后,定义了路网中路段重要性和重要度的概念,建立了基于最大连通子路网中去除某一定路段后的标准车辆通行时间差异的路段重要度评价模型.在此基础上,本文以某区域实际交通网络为例,对本模型及其算法进行了验证,效果良好.

The Importance of Highway Section Evaluation Model In Complex Network between Accident Point and Rescue Point in the Emergency Situations

The importance of the relevant highway section of the emergency rescue network is evaluated in this paper, which has a great value in the emergency traffic plan, command and control and other transport services In this paper, a new algorithm thinking is proposed and the algorithm model is established in views of some defects of the current studies First, the matrix algorithm of the complex transportation network connectivity map is designed to find the network of the biggest connectivity map among the multiple accidents and multiple rescue points Second, the network model GERT(Graph Evaluation and Review Technique) is established based on the network of the biggest connectivity map.The probability selection model based on human reason and experience is designed in views of human choices of highway sections So it can display human traffic psychology and behavior, especially emergency traffic psychology and behavior.Finally, the concept of the importance and its degree is defined and the model of importance degree is established based on the network of the biggest connectivity map which removes a certain highway section.Based on this model, the practical regional transportation network is taken as an example and its algorithm is verified and effective.