结合逻辑与数学规划的交叉口动态车道功能划分优化方法

Optimal Dynamic Lane Assignment for Isolated Signalized Intersection Based on the Combination of Logical Judgment and Mathematical Programming

针对交叉口供需关系不平衡导致车道资源分配不合理的问题,文章基于研究对象、优化目标和模型算法三个方面的分析,提出了一种以进口组为研究对象,关键流量比之和最小为优化目标,非线性规划与逻辑判断相结合的动态车道功能划分优化方法。研究表明,以进口组为研究对象并采用非线性规划与逻辑判断相结合的优化算法,可在保障优化结果准确性的基础上,减少了需同时优化的变量数,提高了求解效率,满足动态优化的要求。

In order to deal with unreasonable allocation of the intersection lane resource. Based on the analysis of the research object, optimization objective and the model algorithm, a dynamic allocation of lane-use optimal method is proposed, which introduces the combination of the nonlinear programming and logic estimation. The method makes the arm grouping as the research object and makes the sum of the critical flow ratio as the optimization objective. Results show that the proposed method can advance the efficiency of the computation by reducing the number of variables and maintain the accuracy of the optimal results at the same time. Then it can meet the needs of dynamic control.