IDM Model Based on Individual Features

Most current car following models are based on standard driving behavior and seldom reflect individual features of vehicles.In this paper,reaction time and vehicle type are added to IDM model as features of cars.Assuming that reaction time disperses between drivers and during the reaction process of a single driver,adopting car size,performance and time headway as features to describe differences between various vehicle types,this essay establishes an IDM model with reaction time and vehicle type.Numerical simulation shows that randomness and heterogeneous character of traffic system can be simulated by the proposed model,which provides simulation results that fits the actual situation perfectly.