Research on the dynamical properties of Beijing road traffic network
The complex nature of urban traffic systems is the key to analyze and solve more and more traffic problems we encounter today. In this paper, the Level-Of-Service (LOS) is redefined in order to reveal the evolving mechanisms of urban traffic systems. Furthermore, the dynamic model of the Beijing road traffic system in which the dynamical properties are described completely is constructed based on dynamic network theory. The conclusion that urban traffic systems can be viewed as static networks, stochastic networks and complex networks at different system phases by analyzing the structural randomness is come out. In the end, with the real traffic data in Beijing for experiment, we demonstrate the evolving process and validate the stochastic characteristics and the scale-free property of the traffic network at different phases.