Dynamics of delayed car-following models: human vs. robotic drivers
نویسندگان
چکیده
A general class of car-following models is studied with different driver reaction time configurations. In particular the stability of traffic flow is investigated in case of human-driven vehicles and computer-controlled (robotic) cars. It is shown that in both cases, time delays can change the frequency of arising oscillations and, consequently, the wavelength of the emerging traveling waves, leading to high-frequency / short-wavelength oscillations. Furthermore, interacting the with the nonlinearities in the system, time delays can make the dynamics excitable, such that waves may be triggered when the uniform flow is linearly stable. Finally, low-frequency and high-frequency oscillations can interact at the nonlinear level leading to very complex dynamics.
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