The invention discloses an intelligent network connection mixed traffic flow basic diagram model and a stability analysis method, and relates to the technical field of urban traffic safety and traffic engineering, and the method comprises the steps: selecting a mixed traffic flow car-following model based on a car-following mode; analyzing a mixed traffic flow considering the variable headway distance and the fleet strength; establishing a mixed traffic flow basic diagram model considering the dynamic headway distance and the fleet strength; drawing a basic diagram, and carrying out sensitivity analysis; deducing a mixed traffic flow stability discrimination condition; and drawing a mixed traffic flow stability discriminant value thermodynamic diagram under the conditions of different CAV permeability proportions and different vehicle speeds based on the discriminant relation. According to the method, the intensity difference of different motorcades and the influence of the variable headway distance in the intelligent network connection mixed driving environment are analyzed from the two aspects of the basic diagram model and the stability, the correctness and the effectiveness of the basic diagram model are more comprehensively explored, and the traffic benefit of the mixed traffic flow at the intersection road section is improved.
本发明公开了一种智能网联混合交通流基本图模型及稳定性分析方法,涉及城市交通安全和交通工程技术领域,包括:基于跟驰模式选取混合交通流跟驰模型;分析考虑可变车头间距与车队强度的混合交通流;建立考虑动态车头间距和车队强度的混合交通流基本图模型;绘制基本图,进行敏感性分析;推导混合交通流稳定性判别条件;基于判别关系式,绘制在不同CAV渗透率比例、不同车辆速度条件下的混合交通流稳定性判别值热力图。本发明从基本图模型和稳定性两个角度,分析在智能网联混行环境下不同车队强度差异和可变车头间距影响,更全面地探究对基本图模型的正确性和有效性,提高混合交通流在交叉口路段的交通效益。
Intelligent network connection mixed traffic flow basic diagram model and stability analysis method
一种智能网联混合交通流基本图模型及稳定性分析方法
2023-12-26
Patent
Electronic Resource
Chinese
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