交通信号控制与平衡网络设计组合模型中利益分配问题的研究

Study on Benefit Balance of the Combined Traffical Signal Control and Equilibrium Network Design

由于在交叉口进行信号控制使得系统的总延误增加,所以信号控制的优化目标是使系统的总延误最小,同时要使得增加的延误在用户之间尽可能均衡分配。为解决这一问题,设计了一个平衡约束条件下信号控制与平衡网络设计组合问题的多目标规划模型,然后使用效用函数法将有双目标的上层优化问题转化为一个单目标优化问题,此时,该模型变成一个标准的双层规划模型,并利用全局优化方法模拟退火算法和惩罚函数法相结合求解。

Because optimal signal control can lead to an increase of delayed cost of system, the goal of signal control is to minimize the total delayed cost of system. At the same time, assignment of the increased delay should be balanced among users. In this paper, a multiobjective programming model under equity constraint that combines signal control and equilibrium network design is proposed and it uses a utility function method to transform the two objectives in the upper level optimization into a single optimization problem. In this case, the model becomes a standard bilevel programming model. A penalty function approach by embodying a global optimization method such as simulated annealing algorism is used to solve the model.