中文摘要：

应用最优控制理论，通过分析驾驶员对信息的感知和对操作的判断决策，建立车辆跟驰模型，并对其进行参数标定和可行性验证．结果表明：车辆跟驰中驾驶员可直接感知的变量即相对速度对其决策影响较大，基于最优控制的车辆跟驰模型可以更精准地模拟驾驶员的跟车过程．

英文摘要：

A car-following model was established based on optimal control by analyzing the infor- mation perception and operation decision of drivers. The parameters and feasibility of this model were calibrated and validated separately. The results show that the perceptual variable relative velocity has great influence on driver＇s decision in car-following, and the carfollowing model based on optimal control can simulate the following process of drivers exactly.