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-  2015 

基于随机用户均衡的路网拥挤收费模型与算法 Congestion pricing model and algorithm based on stochastic user equilibrium

Keywords: 交通规划与管理,拥挤收费,随机用户均衡,仿射尺度内点算法,遗传算法

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Abstract:

为了减轻交通路网拥堵问题,结合现实交通流分配,采用随机用户均衡配流模型,以最小化路网总体出行时间为目标建立了一个拥挤收费的双层模型.对于这种模型,提出了一种新的求解算法,这种算法是将仿射尺度算法与遗传算法相结合.具体地,对给定的收费值,由仿射尺度算法来求解下层随机用户均衡问题得均衡路段流,将其带入上层可求得系统总出行时间.当选取1组初始收费值,可以求得在取各个收费值下的系统总出行时间.这样便可以根据遗传算法来求得最优收费值.数值实验结果表明,在实施收费之后,系统总出行时间得到有效减少,这种模型及算法可以有效地应用于减缓交通路网的拥堵问题

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