交通流概述.ppt

参： 标题: Timing of traffic lights and phase separation in two-dimensional traffic flow 作者: Sun, D; Jiang, R; Wang, BH 出版物: COMPUTER PHYSICS COMMUNICATIONS 卷: 181 期: 2 页: 301-304 出版年: 2010 没有实测数据 问题： 展望一 把BML上的改进模型使用随机更新 例如： 1、two-LEVEL CROSSINGS 2、ANISOTROPIC EFFECT 3、JAM PHASES 4、INHOMOGENEOUS LATTICES 5、JAM-AVOIDING DRIVE 6、unequal velocities 等等 Premature seizure of traffic flow due to the introduction of evolutionary games Matjaz Perc New Journal of Physics 9 (2007) 3 展望二：交通和博弈论结合 模型：一维周期道路上的个体可以向左或向右运动 将进化博弈理论与最简单的非平衡统计模型相结合，发现了有趣的临界相变行为：合作比例随密度的增加会突然降低 平均场理论与数值模拟在一定的条件下符合的比较好 背叛者的引入降低了系统中粒子的移动性 结论 谢 谢！ 备注 Initially, all agents are designated either as cooperators or defectors, Κ: the initial density of cooperators every even iteration step the agents play the game with those nearest neighbours who are prohibiting them in making one step forward if an agent does not have a neighbour blocking its way it simply advances one step irrespective of its strategy. If both agents cooperate, the classical BML model is regained, allowing each individual to advance one step east (north) at the following even (odd) iteration, one agent defects the cooperator is forced to go one step backwards, while the defector is allowed to advance two steps ahead. if both agents defect they must stay put. ‘free road condition’, introduced in the original BML model is superior to the outcome of the game changes of strategies：best-takes-over the central agent always adopts the strategy of those nearest neighbour who has the largest average velocity up until that time If the central agent itself has the largest average velocity, it simply retains its strategy, if an agent does not have a nearest neighbour in any of the four directions its strategy is also preserved. * Timing of traffic lights and phase separation in two-dimensional traffic flow Duo Sun ,RuiJiang , Bing-Hong Wang Computer Physics Communications investigate the effect of traffic light period (d