弹性需求下的轨道交通客流分配模型和算法

User equilibrium model and algorithm for rail transit under elastic demand

分析了轨道交通客流需求量的影响因素.以拥挤条件下的出行阻抗函数为基础,通过引入弹性需求条件下的轨道交通均衡配流条件,构建了弹性需求下的均衡配流模型.根据模型的特点,给出了改进的用于求解弹性需求下的轨道交通均衡配流模型的Frank-wolfe算法.最后通过一个算例说明了算法的有效性和合理性.

The influencing factors of passenger demand are analyzed. On the basis of passenger impedance functions for congested rail transit, user equilibrium condition under elastic demand is introduced to construct user equilibrium model for rail transit. According to characteristics of model, a revised Frankwolfe algorithm is given to solve rail transit user equilibrium model under elastic demand. Finally, a numerical example is used to show that the proposed model and algorithm are rational and effective.