CAJ | 학술논문

分别以车辆出行成本节约与通行收入增加的总和最大及车辆出行广义费用最小作为上、下层模型的目标函数，构建高速公路路面养护项目选择的双层规划模型，在交通量动态分配的基础上采用搜索算法对模型进行求解，同时考虑养护路段施工难度、交通瓶颈、路段安全水平及路段重要度等因素综合判定最优养护方案。结果表明：定量计算与定性指标分析相结合能得出高速公路路面养护项目的最优选择方案，计算结果可反映路段养护的经济效益。
분별이차량출행성본절약여통행수입증가적총화최대급차량출행엄의비용최소작위상、하층모형적목표함수，구건고속공로로면양호항목선택적쌍층규화모형，재교통량동태분배적기출상채용수색산법대모형진행구해，동시고필양호로단시공난도、교통병경、로단안전수평급로단중요도등인소종합판정최우양호방안。결과표명：정량계산여정성지표분석상결합능득출고속공로로면양호항목적최우선택방안，계산결과가반영로단양호적경제효익。
Bi‐level programming model is established for the optimal pavement maintenance project selection of expressway on the basis that the maximum of the sum of vehicle travel cost saving and toll income increasing and the minimum of vehicle travel generalized cost are made as the objective function of the upper level model and the lower level model respectively.Then the search algorithm based on dynamic traffic assignment is designed to solve the model.And expressway maintenance difficulty ,traffic bottleneck ,safety level and degree of expressway importance are combined to decide the optimal maintenance scheme.The results show that quantitative calculation combined with qualitative analysis could get the optimal scheme of expressway maintenance ,and reflect the economic benefit of expressway maintenance.