One-dimensional cellular automaton model of traffic flow considering drivers’ features

Abstract

Based on the WWH model and SDNaSch model for one-dimensional cellular automaton traffic flow, a Driver-SDNaSch model considering the drivers′ features is established. In this model, drivers are classified into such three types as aggressive, cautious and neutral, and their states are updated following their respective evolution rules, which are made according to the different driving features of these three types. In addition, the safe deceleration probability is introduced when considering the condition of having a stationary vehicle ahead. By using the computer numerical simulation of the Driver-SDNaSch model, the velocity-density and flow-density diagrams of the mixed traffic flow, whose features are also analysed and discussed, with the three types of drivers in different proportions, are presented. The Driver-SDNaSch model, compared with the NaSch model and SDNaSch model, is believed to further reduce the traffic jams so as to increase the traffic capacity.