Cellular automata model for Urban Road traffic flow Considering Internet of Vehicles and emergency vehicles

Based on the forecast of the future prospect of the car network function, the paper analyzes the traffic characteristics of the future networked vehicles and the traffic characteristics of the emergency vehicles in the network environment. Then in order to better investigate the characteristics of Internet of Vehicles, MCD model (into which introduced the brake light) is improved by considering the vehicle safe distance which is depending on the driver's reaction time and the estimation of the front vehicle velocity. Based on the improved model, the rules such as the speed perception of the connected vehicle, low reaction time of networked vehicle and the regional avoidance of the emergency vehicle are introduced, which constitute the emergency vehicle CA model of urban road traffic flow. The results show that the vehicle network can improve the traffic capacity and average speed of the road so that it has a good effect on the urban traffic, which is conducive to the rapid passage of emergency vehicles.