基于信息熵与变权综合的城市快速路节点规划

发布时间：2018-06-27 02:36

本文选题：快速路节点 + 熵权法　；参考：《西安建筑科技大学学报(自然科学版)》2014年05期

【摘要】：利用变权与信息论中的熵理论对城市快速路节点的重要度进行评价,以此对城市快速路节点进行规划.首先,分析影响城市快速路节点规划的主要因素,构建城市快速路节点重要度的评价指标.其次,用熵权法构造常权向量,研究评价指标间的相互关系适当选取状态变权向量.再次,应用常权和变权向量构造变权模型,建立城市快速路节点重要度的评价模型.最后,应用实例对快速路节点进行评价,验证了模型的有效性,并提出规划意见.结果表明,此种针对城市快速路节点重要度的评价方法,能考虑到各指标之间的相互影响及指标值波动对实际结果所产生的影响,规划结果符合实际,为城市快速路节点规划与设计提供理论依据,具有一定参考价值.
[Abstract]:Based on the entropy theory of variable weight and information theory, the importance of urban expressway nodes is evaluated and the urban expressway nodes are planned. Firstly, the main factors influencing the urban expressway node planning are analyzed, and the evaluation index of the urban expressway node importance is constructed. Secondly, the constant weight vector is constructed by entropy weight method, and the proper selection of state variable weight vector is studied. Thirdly, the constant weight vector and variable weight vector are used to construct the variable weight model, and the evaluation model of the importance of urban expressway node is established. Finally, an example is applied to evaluate the expressway node, which verifies the validity of the model and puts forward planning suggestions. The results show that the evaluation method for the importance of urban expressway nodes can take into account the interaction among the indicators and the impact of the fluctuation of the index values on the actual results, and the planning results are in line with the reality. It provides a theoretical basis for the planning and design of urban expressway nodes, and has certain reference value.
【作者单位】：西安建筑科技大学土木工程学院;
【基金】：陕西省教育厅专项科研计划项目(11JK0895)
【分类号】：U491;U412.12

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