基于改进层次分析法的城市道路横断面评价方法  

An Evaluation Method of Urban Road Cross-section Based on Improved AHP

作　　者：刘丽芬[1,2] 武贤慧[3] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]西安市政设计研究院有限公司,陕西西安710068 [3]长安大学建工学院,陕西西安710064

出　　处：《公路交通科技》2016年第11期50-56,共7页Journal of Highway and Transportation Research and Development

基　　金："十二五"国家科技支撑计划项目(2014BAG05B04)

摘　　要：通过分析城市道路承担的功能以及道路横断面设计的影响因素,构建了包括交通需求、道路设计、环境及人性化要求及其子项目在内的横断面设计评价指标体系。基于模糊数学隶属度的基本原理,采用改进的层次分析法,建立了评价指标的相对隶属度矩阵,并根据隶属度矩阵构造各评价指标权重的判断矩阵,构建了城市道路横断面设计方案的模糊综合评判模型。通过工程实例的计算分析,对评价方法及评价模型进行了验证。结果表明,利用改进的层次分析法来构建的权重矩阵,可以减少主观因素对评价结果的影响,使得城市道路横断面设计方案的比选更具客观性和科学性。According to the analysis of the road function and the factors affecting the cross-section design of urban road, the evaluation index system of cross-section design including traffic demand, road design, environmental and human requirements is constructed. Based on the basic principle of membership in fuzzy mathematics, the relative membership matrix of evaluation index is established by using the improved AHP, and the judgment matrix of each index weight is constructed accordingly. Thus a fuzzy comprehensive evaluation model for urban road cross-sectional design scheme is set up. Then, the evaluation method and the evaluation model are verified by an engineering example. The result shows that the influence of subjective factors on the evaluation result can be reduced by the constructed judgment matrix using the improved AHP. It is more objective and scientific for the design scheme selection of urban road cross-section.

关 键 词：道路工程 道路横断面 层次分析法 模糊综合评价模型 相对隶属度矩阵 

分 类 号：U412.37[交通运输工程—道路与铁道工程]