基于改进FAHP的交通系统脆性分析

The Brittleness Analysis of the Traffic System Based on the Modified FAHP

将复杂系统脆性引用到交通系统的研究中,并根据复杂系统的层次结构,采用模糊层次分析法(FAHP)对交通系统进行了分析.为了更准确地描述两个元素关于某准则的相对重要程度,对模糊层次分析法进行改进.利用九标度法建立目标集的互反型二元比较矩阵,对其用方根法(或行和归一法)与乘幂法结合使用,以此求得交通系统各子系统(或元件)的相对重要度排序向量,找出极易使交通系统崩溃的脆性元件或因素,对其进行重点监测,最大限度避免了脆性的发生,从而为交通系统的脆性研究提供了一种可行的分析方法.

In this paper, the brittleness of the complex system is introduced to the study of the traffic system. According to the hierarchy structures of complex systems, we analyze the brittleness of the traffic system with the Fuzzy Analytic Hierarchy Process（FAHP）. In order to describe the relative importance between any two elements exactly, we modify the FAHP method. A reciprocal two - dimensional comparison matrix of objective sets is established with nine scales, and a combined method of both the square - root and power is used on this matrix to obtain the relative importance degree order vector of the subsystem of traffic system by the modified FAHP. We find the significant brittleness factors that lead to system breakdown and watch them. The system brittleness is kept from happening to the utmost extent. Thereby, a feasible method for studying the brittleness of the traffic system is provided.