基于多用户类型随机用户平衡的连续网络设计

用多用户类型随机用户平衡描述实际路网中出行者的路径选择行为。根据出行者对路网状况认识的不同程度,将出行者划分为具有相同特性的多个类型。将多用户类型随机用户平衡问题表示为一个无约束极小化问题,并提出了该问题的一种基于路段水平的灵敏度分析方法。建立了多用户类型随机用户平衡条件下的连续网络设计问题的双层规划模型,并给出了基于灵敏度分析的启发式算法。实例的结果表明模型具有一般性和适应性。

Continuous Network Design under Stochastic Multiple User Equilibrium

The stochastic user equilibrium with multiple user groups is used to characterize users' route choice behaviors in real road networks.According to the users' different perceptions of the travel costs,they are divided into groups so that users have homogenous characteristics within each group.The stochastic user equilibrium with multiple user groups is represented as an unconstrained minimization problem solution and a sensitivity analysis method based on link level is proposed for it.A bilevel programming model that incorporates the unconstrained minimization problem is proposed for the continuous network design.Then a heuristic solution algorithm based on sensitivity analysis for this model is provided.The results of the example show that the model has generality and adaptability.