摘要
基于城市路网交通间断流特性,本文将微观层面的信号交叉口延误计算方法引入宏观层面的平衡网络信号优化设计问题,构建了一个中观层面的城市路网交叉口信号优化设计双层规划模型,设计了基于遗传操作的优化算法。通过路网算例对模型及算法进行测试,并通过与微观、宏观层面的两种信号优化配时方法进行比较,验证所提出模型的优越性。
Based on the traffic interrupted flow characteristics of a urban road network, this paper introduced the microscopic method of signal intersection delay calculation into the macroscopic theory for equilibrium network signal setting problem, establishing a medium bi-level programming model to optimizing the urban road network intersection signal, devising an optimization algorithm based on the genetic operation. One road network was set to test the model and its algorithm, and the superiority of the model was proved by comparing with the two signal setting methods, which was in microscopic and macroscopic view, respectively.
出处
《交通运输工程与信息学报》
2013年第1期108-113,共6页
Journal of Transportation Engineering and Information
关键词
平衡网络
交叉口延误
信号周期
绿信比
双层规划
Equilibrium network, intersection delay, signal cycle, split green ratio, bi-levelprogramming
