Study On Microscopic Traffic Simulation Based On Cellular Automata

At present, the computer simulation is a kind of main method in scientific research and solving the real-life problem difficult to implement. Traffic simulation is an important application of technology of computer simulation in the field of traffic engineering. People began to utilize the computer to imitate the traffic behaviors since the 1950's. These decades, the research of traffic simulation, especially the research of microscopic traffic simulation, has made enormous progress, urging by of development of traffic theory, computer hardware & software engineering, basic traffic facility and social demand. Computer hardware and software engineering, especially for software programming and modeling technology, are developed rapidly during recent decades. Its rapid development is playing an essential role to the development of traffic simulation. Computer theory and technology, such as Qualitative Analysis, Fuzzy Logic, Expert System, Geographical Information System, Genetic Algorithm, Neural Network, Parallel Computing, Object-Oriented, Virtual Reality and Cellular Automata, offer new method and research train of thought for traffic simulation. Research indicated Cellular Automata modeling technology is one simple effective method to study the dynamic problem of traffic flow. Cellular Automata can simulate various kinds of complicated phenomena in the reality traffic flow with the simple rule. The microscopic traffic simulation modeling and the design of the relevant simulation software are the research focus in this paper. On the basis of understanding and studying the domestic and international research of microscopic traffic simulation, summarized the present situation and existing deficiency in the research field of microscopic traffic simulation. And advanced a framework of the microscopic traffic simulation modeling. It constituted by traffic demand model, road network model, scheme model, vehicle-running model and network analysis model, and offered the train of thought and framework for further deep research in the future. Describe the vehicle-production model and the vehicle-running model on emphasis, including with vehicle-following model and lane-changing model, and the achievements researched on this model. The solving methods of some key technologic problem in the designee of microscopic traffic simulation software were described.