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采用双车道元胞自动机模型,分析了考虑驾驶心理的城市道路交通流特性.针对驾驶员在城市道路行驶时在换道与减速制动方面的不同心理,分别引入了反映驾驶心理的选择换道概率Ps与安全参数λ.通过计算机模拟,给出了不同选择换道概率与安全参数条件下的车辆速度、密度与流量间的关系,并分析了不同驾驶心理对于交通系统的影响.研究发现:选择换道概率对交通流的速度影响并不明显,但选择换道概率的增大会导致速度的方差增大而降低行车安全;而安全参数的增大可以获得更快的平均车速和更大的交通流量.
Using the two-lane cellular automaton model, the characteristics of urban road traffic flow considering driving psychology are analyzed.Different psychology of drivers in lane changing and deceleration braking when driving on urban roads are introduced respectively, which reflect the choice of driving psychology The probability of road Ps and the safety parameter λ.The relationship between vehicle speed, density and flow under different selection of lane changing probabilities and safety parameters is given by computer simulation and the influence of different driving psychics on traffic system is analyzed. : The effect of choosing lane changing rate on traffic flow speed is not obvious, but increasing the lane changing probability leads to the increase of speed variance and driving safety, while the increase of safety parameters can achieve faster average speed and larger Traffic flow.