Traffic Congestion on Clustered Random Complex Networks
In this work we study the traffic-flow on clustered random complex networks. First, we derive a mathematical model to determine the congestion phase-transition point. This point is defined as the abrupt transition from a free-flow to a congested state. Second, we study the influences of different cluster sizes on the traffic-flow. Our results suggest that the traffic of centralized cluster network (a network which has a big central cluster surrounded by clusters with significantly smaller sizes) is less congesting than balanced cluster network (a network with clusters of approximately the same size). These results may have practical importance in urbanization planning. For example, using the results of this study, the increasing of satellite cities’ sizes surrounding a big city should be well controlled to avoid heavy traffic congestion.
KeywordsComplex Network Cluster Size Network Size Congested State Connection Probability
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