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由于现实世界的复杂性和人为因素的不可控性,交通系统的最优交通配流难以实现.多数交通系统运行在用户最优原则下.通过基于多智能体交通微观仿真技术在3种不同抽象路网中的仿真研究,得出如下结论:不论在交通系统中是否植入实时交通信息系统(RTTIS),系统都能够建立近似交通用户均衡.在这些均衡状态中,在平行路网中RTTIS的植入,恶化了交通系统的运行,车辆平均速度降低50%;在网格状和环状路网中其植入却使交通效率得到了优化,车辆平均速度分别提高33%和71%.RTTIS能够将交通系统从某一用户均衡状态转换到新的用户均衡状态,在这个过程中系统效率可能得到提高也可能变坏,这依赖不同的交通网络结构.
Due to the complexity of the real world and the uncontrollable nature of human factors, the optimal traffic flow in the traffic system is difficult to achieve.Most traffic systems operate under the principle of optimal user.Through the multi-agent traffic micro-simulation technology, The simulation results show that the system can establish approximate traffic user equilibrium regardless of whether RTTIS is implanted in the traffic system or not.In these equilibrium states, The traffic efficiency was reduced by 50% when the traffic system was deteriorated and the traffic speed was reduced by 50%. The traffic efficiency was optimized in the grid and the ring road network, and the average vehicle speed increased by 33% and 71% respectively. Transforming the traffic system from a user equilibrium to a new user equilibrium may increase or decrease system efficiency in this process depending on different traffic network structures.