Stability analysis of traffic flow with extended CACC control models

• Published in: Chinese physics B Vol. 25; no. 6; pp. 123 - 129
• Main Author: 郑亚周 程荣军 卢兆明 葛红霞
• Format: Journal Article
• Language: English
• Published: 01.06.2016
• Subjects: Computer simulation; Control systems; Mathematical models; Stability; Traffic engineering; Traffic flow; Traffic models; Traffic safety; 交通条件; 交通流模型; 稳定性分析; 稳定性判据; 线性稳定性理论; 综合控制系统; 自适应巡航控制; 速度控制
• ISSN: 1674-1056; 2058-3834; 1741-4199
• DOI: 10.1088/1674-1056/25/6/060506

To further investigate car-following behaviors in the cooperative adaptive cruise control（CACC） strategy,a comprehensive control system which can handle three traffic conditions to guarantee driving efficiency and safety is designed by using three CACC models.In this control system,some vital comprehensive information,such as multiple preceding cars’ speed differences and headway,variable safety distance（VSD） and time-delay effect on the traffic current and the jamming transition have been investigated via analytical or numerical methods.Local and string stability criterion for the velocity control（VC） model and gap control（GC） model are derived via linear stability theory.Numerical simulations are conducted to study the performance of the simulated traffic flow.The simulation results show that the VC model and GC model can improve driving efficiency and suppress traffic congestion.