First of all , we have established models of microcosmic traffic flow , such as : car _ send out model , car _ dynamical model , following model , changing driveway model , queuing model , toll station model , adding and diverting traffic flow model , car _ arriving model , model of basic road , net of road model , etc . then i have programmed modules of all models , and determined the method of system simulation 本文主要立足与高速公路微观交通流仿真系统的建模与实现，首先确立微观交通流各仿真模型，如：发车模型，车辆运动模型，跟驰模型，换车道模型，排队模型，收费站模型，匝道合流与分流模型，车辆到达消失模型，基本道路模型，路网仿真模型等。然后编制各模型的实现模块，确定系统的仿真方法。
