Modeling and stability analysis of traffic flow considering electronic throttle dynamics on a curved road with slope.

To enhance traffic flow stability, the intricacy dynamic of road geometry characteristics on traffic safety is explored in this paper. And an extended macro traffic flow model is proposed coupled with electronic throttle (ET) dynamics effect for a single lane system. Based on the linear stability analysis, we can distinctly find that the stable region will varies due to the change of slope angle when the electronic throttle opening angle is fixed. Characteristics of density wave propagation near the neutral stability lines are described by means of the KdV equation, which is obtain from nonlinear analysis method. The new model also captures the evolution characteristics of shock and rarefaction waves. The simulation example verifies that the road geometric characteristics have a marked impact on the total energy consumption of the transportation system. The traffic congestion can be restrained efficiently by introducing the ET dynamics effect. The numerical simulation shows a good agreement with the analytical result. • An extended macro model of single lane system considering the dynamic effect of electronic throttle is established. • The complex dynamic influence of road geometric characteristics on traffic flow stability is analyzed. • Shock and rarefaction waves are performed and the influence of slope on total traffic energy consumption is simulated. [ABSTRACT FROM AUTHOR]