摘要
针对轨道交通设计方案优选问题具有多因素和模糊性的特点,引入模糊综合评价模型对方案进行比选,首先采用层次分析法计算设计方案各影响因素的权重,然后计算影响因素对评价等级的隶属度,对评价指标的权重与隶属度进行模糊运算,得到设计方案的评价等级。最后通过实例研究,证明了这种方法的合理性和有效性。
In view of the complicated factors and fuzzy characters of rail transit project design,the fuzzy mathematical theory is used to choose the optimal design.Firstly,the weight of the evaluating indexes is calculated,then,the membership degree of index to evaluating rank is calculated.The rank of designs can be obtained by taking weight and membership degree into Fuzzy Comprehensive Assessment model.By comparing the calculation results,the optimal design can be determined.At last,a practical example is studied to demonstrate the rationality and validity of the model.
关键词
轨道交通工程
层次分析法
模糊数学
方案优选
rail transit project
analytic hierarchy process method
fuzzy mathematics
design optimization
