The invention relates to the technical field of intelligent traffic, in particular to a simulation method of a hybrid traffic flow lattice car-following system considering a slope factor, which introduces hybrid traffic flow permeability, a slope and a friction coefficient of a road, and introduces a communication vehicle number and a flow difference effect to optimize a car-following behavior of a network-connected commercial vehicle, and in a V2X environment, the traffic flow difference effect of the network-connected commercial vehicle is optimized. The method comprises the following steps: carrying out linearization processing on a lattice car-following system to obtain an evolution equation of density, carrying out stability analysis on the evolution equation of density to obtain a stability condition of the lattice car-following system, carrying out nonlinear analysis on the lattice car-following system, and deducing a partial differential equation for describing micro-perturbation near a stable critical point by utilizing the set stability condition. Therefore, the coexistence curve of the lattice car-following system is obtained, the mixed traffic flow car-following behavior in the slope environment can be accurately depicted, finally, the simulation result of the lattice car-following system is analyzed, and it is proved that traffic jam can be effectively relieved, and the traffic flow stability is improved.
本发明涉及智能交通技术领域,具体涉及一种考虑斜坡因素的混合车流格子跟驰系统的仿真方法,该方法引入了混合车流渗透率、道路的坡度和摩擦系数,以及引入了通信车辆数和流量差效应优化网联商用车跟驰行为,在V2X环境下,通过对格子跟驰系统线性化处理,得到密度的演化方程,并对密度的演化方程做稳定性分析,得到格子跟驰系统的稳定性条件,再对格子跟驰系统做非线性分析,并利用设定好的稳定性条件,推导出描述稳定临界点附近微扰动的偏微分方程,从而得到格子跟驰系统的共存曲线,能够精确刻画斜坡环境下的混合车流跟驰行为,最后对格子跟驰系统的仿真结果进行分析,证明能够有效缓解交通拥堵,提高交通流稳定性。
Simulation method of hybrid traffic flow lattice car-following system considering slope factor
一种考虑斜坡因素的混合车流格子跟驰系统的仿真方法
05.04.2024
Patent
Elektronische Ressource
Chinesisch
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