Stability of heterogeneous traffic considering impacts of platoon management with multiple time delays

Tiancheng Ruan, Linjie Zhou and Hao Wang

Physica A: Statistical Mechanics and its Applications, 2021, vol. 583, issue C

Abstract: With the development of Connected Autonomous Vehicle (CAV), there will be a long-term heterogeneous traffic flow composed of Manual Vehicles (MVs) and CAVs on the road. Firstly, this study explores the traffic composition and distribution characteristics of heterogeneous traffic flow considering the limitation of communication range and CAV degradation. Secondly, we conduct a corresponding linear stability analysis for the heterogeneous traffic flow and introduce different types of time delays into the stability analysis framework. Thirdly, we verify theoretical derivation results through nonlinear numerical simulation. Finally, the influence of platoon management and time delays on the linear stability of heterogeneous traffic flow is explored. The results show that, at first, the stability of heterogeneous traffic flow deteriorates due to the involvement of CAV, and does not grow until the CAV market penetration rate reaches a certain threshold. In the speed range greater than 23.08 m/s, the heterogeneous traffic flow is constantly stable. Platoon management can significantly improve the linear stability of heterogeneous traffic flow with a high CAV market penetration rate, while time delays have a negative effect on the linear stability of heterogeneous traffic flow.

Keywords: Connected and Automated Vehicles (CAVs); Heterogeneous traffic flow; Linear stability; Platoon management; Time delay (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (12)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:583:y:2021:i:c:s0378437121005677

DOI: 10.1016/j.physa.2021.126294

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