论文部分内容阅读
以确定性交通网络用户均衡问题为研究对象,在分析了确定性用户均衡模型与优化条件的基础上,从非线性规划理论出发推导出确定性用户均衡模型的敏感度分析方程.与变分不等式的敏感度分析方法相比较,该方法只需要一般的数学规划知识,很容易被交通规划师和工程师所接受;提供一种获得均衡网络路径解的方法,该方法根据路径费用的大小决定路径解集的取舍,最终可以找到与各OD相对应的多条最短路径,该路径解可以直接用于网络敏感度分析.实例说明了该算法的有效性和敏感度分析在交通规划、建设与管理中的应用.
Based on the analysis of the deterministic user equilibrium model and optimization conditions, the sensitivity analysis equation of deterministic user equilibrium model is deduced from the nonlinear programming theory, and the variational inequality Compared with the sensitivity analysis method, this method only needs general knowledge of mathematical programming and can be easily accepted by traffic planners and engineers. A method to obtain a balanced network path solution is provided. The method determines the path solution according to the path cost Set of trade-offs, we can finally find a number of shortest paths corresponding to each OD, which can be directly used for network sensitivity analysis.Examples illustrate the effectiveness and sensitivity of the proposed algorithm in traffic planning, construction and management Applications.