Modeling and analyses for an extended car-following model accounting for drivers’ situation awareness from cyber physical perspective

Dong Chen, Dihua Sun, Min Zhao, Tong Zhou and Senlin Cheng

Physica A: Statistical Mechanics and its Applications, 2018, vol. 501, issue C, 52-68

Abstract: In fact, driving process is a typical cyber physical process which couples tightly the cyber factor of traffic information with the physical components of the vehicles. Meanwhile, the drivers have situation awareness in driving process, which is not only ascribed to the current traffic states, but also extrapolates the changing trend. In this paper, an extended car-following model is proposed to account for drivers’ situation awareness. The stability criterion of the proposed model is derived via linear stability analysis. The results show that the stable region of proposed model will be enlarged on the phase diagram compared with previous models. By employing the reductive perturbation method, the modified Korteweg de Vries (mKdV) equation is obtained. The kink–antikink soliton of mKdV equation reveals theoretically the evolution of traffic jams. Numerical simulations are conducted to verify the analytical results. Two typical traffic Scenarios are investigated. The simulation results demonstrate that drivers’ situation awareness plays a key role in traffic flow oscillations and the congestion transition.

Keywords: Car-following model; Situation awareness; Cyber physical process; Stability; mKdV equation; Traffic jams (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:501:y:2018:i:c:p:52-68

DOI: 10.1016/j.physa.2018.02.125

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