为了改善多车道、路况可变、流量可变的复杂交通环境中关于道路交通流量的问题,采用多时段延时动力系统思想,建立了基于动力系统的道路交通流量新模型.该模型可以描述前后多时间段对道路交通流量的相互影响.仿真数据结果表明,新模型能够模拟真实的交通流量变化,同时对于控制交通流量以及分析交通系统的特点是有效的. In order to improve the road traffic flow in complex traffic environment with multi-lane, variable traffic and variable traffic flow, a multi-period delay dynamical system is used to establish a new model of road traffic flow based on powertrain. The model can describe before and after Simulation results show that the new model can simulate the real traffic flow changes, and it is also effective in controlling traffic flow and analyzing the characteristics of the traffic system.