Impact of the heterogeneity and platoon size of connected vehicles on the capacity of mixed traffic flow

被引:20
作者
Yao, Zhihong [1 ,2 ,3 ]
Ma, Yuqin [1 ,2 ]
Ren, Tingting [1 ,2 ]
Jiang, Yangsheng [1 ,2 ,3 ]
机构
[1] Southwest Jiaotong Univ, Sch Transportat & Logist, Chengdu 610031, Sichuan, Peoples R China
[2] Southwest Jiaotong Univ, Natl Engn Lab Integrated Transportat Big Data Appl, Chengdu 611756, Sichuan, Peoples R China
[3] Southwest Jiaotong Univ, Natl United Engn Lab Integrated & Intelligent Tran, Chengdu 611756, Sichuan, Peoples R China
基金
中国国家自然科学基金;
关键词
Mixed traffic flow; Maximum platoon size; Fundamental diagram; Road capacity; Penetration rate; AUTOMATED VEHICLES; AUTONOMOUS VEHICLE; LANES;
D O I
10.1016/j.apm.2023.09.001
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper proposes a capacity analysis model for a mixed traffic flow environment that considers the heterogeneity and maximum platoon size of connected vehicles. Firstly, we explore how the organization mode of platoon affects car-following characteristics in mixed traffic flow with connected and automated vehicles, connected human-driven vehicles, automated vehicles, and human-driven vehicles. Different car-following models are used to describe the car-following characteristics of different types of vehicles. Secondly, the probability distribution model is developed for the size of platoons considering the penetration rate and the maximum platoon size of connected and automated vehicles, connected human-driven vehicles. Thirdly, the fundamental diagram of mixed traffic flow is further derived based on the probability distribution of platoon size and car-following models. Then, the capacity model of mixed traffic flow is proposed. Finally, a numerical experiment is designed to evaluate the impact of different penetration rates and maximum platoon sizes of connected and automated vehicles, connected human-driven vehicles on the capacity of the mixed traffic flow. The results show that (1) with a low penetration rate of connected and automated vehicles, connected human-driven vehicles, the change in the maximum platoon size has no noticeable effect on the distribution of platoon size of connected and automated vehicles, connected human-driven vehicles. (2) Road capacity increases with the maximum platoon size and the penetration rate of connected vehicles. (3) Compared with connected human-driven vehicles, the penetration rate of connected and automated vehicles has a more significant impact on road capacity.
引用
收藏
页码:367 / 389
页数:23
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