论文部分内容阅读
根据双向双车道公路的交通特征及其仅能借对向车道完成超车的道路条件,考虑车辆驾驶员的不同性格特点和双车道公路车型复杂的特性,将驾驶员特性与车辆动力性能引入元胞自动机模型,建立了改进型双向双车道元胞自动机模型。通过计算机模拟,分析了流量对称和非对称条件下双车道公路路段上不同车辆到达系数、小车比例、驾驶员比例、道路流向比例等因素对双车道公路交通冲突的影响,得出了车辆到达系数、小车比例、驾驶员比例、道路流向比的量化参数与冲突数的相互关系。结果表明:公路交通冲突次数与车辆到达系数、流向比、小车比例、激进型驾驶员比例都有较强的正相关性,相关分析的拟合优度为0.904;在公路交通冲突的影响因素中,车辆到达系数对冲突数的影响程度最大,其次为小车比例。
According to the traffic characteristics of two-way two-lane highway and the road conditions that can only be overtaken by the opposite lane, the characteristics of drivers and the complicated characteristics of two-lane road vehicles are considered, and the driver characteristics and vehicle dynamics are introduced into the cells Automaton model, an improved bi-directional two-lane cellular automata model was established. Through computer simulation, this paper analyzes the influence of different factors such as vehicle arrival coefficient, car ratio, driver ratio and road flow ratio on two-lane highway traffic collision under symmetrical and asymmetrical traffic flow conditions, and obtains the vehicle arrival coefficient , The car ratio, the proportion of drivers, the road flow ratio of quantitative parameters and the relationship between the number of conflicts. The results show that there is a strong positive correlation between the number of road traffic conflicts and the vehicle arrival coefficient, the flow direction ratio, the proportion of small cars and the proportion of radical drivers, and the goodness of fit of the correlation analysis is 0.904. Among the factors affecting road traffic conflicts The vehicle arrival coefficient has the greatest impact on the number of conflicts, followed by the car’s proportion.