城市公交网络可靠性的双层规划模型

Bilevel programming model for the reliability of public transportation system

建立了城市公共交通网络的重图模型 ,定义了公共交通网络的可靠性指标矩阵 ,依此建立了城市公交网络可靠性的双层规划模型 ,其上层模型使整个网络系统可靠且达到最优 ,而下层模型是一个标准的满足 WARDROP第一平衡准则的用户平衡模型 ,最后进行了求解分析。

By introducing the pseudograph model and the reliability index matrix of public transportation system, a bilevel programming model for the reliability of public transportation system is established, in which the objective function of the upper level model is to minimize the total investment and make the network to be system optimization at the same time and the lower level model is a standard network equilibrium model satisfying WORDROP's first equilibrium rule. The solution algorithm for this model is also discussed in this paper.