在综合分析现有各种类型的交通流模型的基础上,提出更为符合实际的微观模型和宏观模型.具体地说,我们提出了一种全速度差车辆跟驰模型,一种考虑前车速度效应的元胞自动机模型,另一种能较好模拟同步流的元胞自动机模型,以及一种能体现交通流各向异性特征的速度梯度宏观连续模型.通过理论分析和数值模拟,研究了交通流中的各种非线性现象,并探讨了各种不同类型的模型之间的相互联系. Based on the comprehensive analysis of various types of traffic flow models, a more realistic micro-model and macro-model are put forward.Furthermore, we propose a car-following model with full speed difference, The cellular automaton model of velocity effect and another cellular automata model that can simulate the synchronous flow well and a macroscopically continuous model of velocity gradient which can reflect the anisotropy of traffic flow.According to theoretical analysis and numerical simulation, Various non-linear phenomena in traffic flow have been studied and the interrelationships between various types of models explored.