Abstract

In order to analysis the process of congestion diffusion in traffic network and obtain the critical value of traffic congestion, this paper presented a coordination game model for traffic congestion diffusion. Through the coordination game between network individuals and the decision-making behavior of travelers in traffic congestion, this paper described the process of congestion diffusion in traffic network. And according to the process of pass through the behavior of adjacent nodes in network, built a traffic network congestion diffusion model, derived the critical condition of traffic congestion diffusion with the method of probability generation function. Finally, this paper built a simulation model to analysis the influence on the traffic congestion imposed by the road network structure and the distribution of node degree. When the results of simulation is same with the results of analytical analysis, and it can reflect the dynamic information of traffic congestion, then it is found that the influence of the congested node on other adjacent nodes is the key point to find the critical condition of traffic congestion diffusion, when the influence reaches to a certain extent, a massive traffic congestion will be generated.

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