基于分层模糊法的城市轨道交通规划优化决策研究

Opimal Decision-making Researching for Urban Mass Transit Plan Based on Multi-layer Fuzzy Optimization Method

城市轨道交通线网规划是一个复杂的系统工程,其涉及因素众多,仅采用层次分析方法已无法反映判断的不确定性和模糊性;因此应用模糊数学理论优选综合评价和层次分析相结合的方法对城市轨道交通网络规划进行决策评价,并提出了分层模糊优化决策模型。该模型通过多人专家的决策,将各个因素层次化,并且构建模糊矩阵,并计算出各层的权重,采用归一法,经过模糊化运算,最终得出结果,并应用到实例验证了采用此种方法的可行性。

Urban mass transit network planning is a complex and systematic project, which involves many factors,so that the mere adoption of hierarchical analysis methods have been unable to reflect the judgment of uncertainty and fuzziness;In this paper,the fuzzy optimization comprehensive assessment is combined with the＇Analytic Hierarchy Process to evaluate the decisions in the urban mass transit net- work program and present the decision-making model based on hierarchical fuzzy optimization. To this approach,determined by many experts, the multi-layer model of the factors is developed. Then, the fuzzy matrix is constructed. And the weight of the factor index of every layer is calculated out. Finally, through fuzzy operation,the final result of assessment is received by ormalization method. In the end, an example is presented that demonstrates the feasibility of this approach.