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Design and Simulation of Improved One-Dimensional Cellular Automaton Model

By analyzing the condition of safe deceleration, a new CA traffic model emphasizing high safety was simulated. In order to describe the impact of the safety deceleration on the model, using computer to design and implement safety deceleration CA model simulation program. Computer numerical simulations have been carried out. The flow-density diagrams indicate the increase of flow and the stability of the entire system, and show the presence of meta-stable state near the critical density. With the increase of safety deceleration probability, the traffic flow is higher than that with the former model in the situations of both mid density and mid-low density.