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A Modified Car-following Model Considering Traffic Density and Acceleration of Leading Vehicle

1
School of Highway, Chang’an University, Xi’an 710064, Shannxi, China
2
College of Civil Engineering, Anhui Jianzhu University, Hefei 230601, Anhui, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(4), 1268; https://doi.org/10.3390/app10041268
Received: 20 January 2020 / Revised: 7 February 2020 / Accepted: 10 February 2020 / Published: 13 February 2020
(This article belongs to the Section Mechanical Engineering)
Although the difference between the velocity of two successive vehicles is considered in the full velocity difference model (FVDM), more status information from preceding vehicles affecting the behavior of car-following has not been effectively utilized. For improving the performance of the FVDM, an extended modified car-following model taking into account traffic density and the acceleration of a leading vehicle (DAVD, density and acceleration velocity difference model) is presented under the condition of vehicle-to-vehicle (V2V) communications. Stability in the developed model is derived through applying linear stability theory. The curves of neutral stability for the improved model indicate that when the driver pays more attention to the traffic status in front, the traffic flow stability region is larger. Numerical simulation illustrates that traffic flow disturbance could be suppressed by gaining more information on preceding vehicles.
Keywords: velocity difference; car-following model; preceding vehicles; traffic density; linear stability theory velocity difference; car-following model; preceding vehicles; traffic density; linear stability theory
MDPI and ACS Style

Cao, X.; Wang, J.; Chen, C. A Modified Car-following Model Considering Traffic Density and Acceleration of Leading Vehicle. Appl. Sci. 2020, 10, 1268.

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