Showing 1 - 9 of 9
In this paper, we study the cascading failure on weighted urban traffic equilibrium networks by introducing a more practical flow assignment mechanism. The whole process including edges overloading to node malfunctioning, dynamic spanning clustering and the phase transitions trigged with O–D...
Persistent link: https://www.econbiz.de/10010588724
In this paper, we consider the artificial scale-free traffic network with dynamic weights (cost) and focus on how the removal strategies (flow-based removal, betweenness-based removal and mix-based removal) affect the damage of cascading failures based on the user-equilibrium (UE) assignment,...
Persistent link: https://www.econbiz.de/10011058432
Considering the microscopic characteristics (vehicle speed, road length etc.) of links and macroscopic behaviors of traffic systems, we derive the critical flow generation rate in scale-free networks. And the dynamics of traffic congestion is studied numerically in this paper. It is shown that...
Persistent link: https://www.econbiz.de/10011058797
In this paper, we propose a new dynamic traffic model (DTM) for routing choice behaviors (RCB) in which both topology structures and dynamical properties are considered to address the RCB problem by using numerical experiments. The phase transition from free flow to congestion is found by...
Persistent link: https://www.econbiz.de/10011062050
How to control the cascading failure has become a hot topic in recent years. In this paper, we propose a new matching model of capacity by developing a profit function to defense cascading failures on artificially created scale-free networks and the real network structure of the North American...
Persistent link: https://www.econbiz.de/10010590061
In this paper, we investigate in detail the epidemic spreading process in scale-free networks with community structure. In such a network, nodes tend to form sparsely linked local communities, each having dense internal connections. Different spreading rates in SIR model are adopted to describe...
Persistent link: https://www.econbiz.de/10010591254
The spatial price problem means that if the supply price plus the transportation cost is less than the demand price, there exists a trade. Thus, after an amount of exchange, the demand price will decrease. This process is continuous until an equilibrium state is obtained. However, how the trade...
Persistent link: https://www.econbiz.de/10010588936
In this paper, we use the speed-gradient (SG) model proposed by Jiang et al. [Transportation Research Part B, 36 (2002) 405–419] to study the initial value problem of traffic flow. The evolution of multi-traffic waves is examined through setting piecewise continuous initial density. Numerical...
Persistent link: https://www.econbiz.de/10010591607
Hidden regularities of complex networks may be different from the properties they show to us externally. In this paper, organization of rich nodes in real world and model networks are investigated. It is found that in scale-free networks, when the rich level is relatively low, the degree...
Persistent link: https://www.econbiz.de/10011057218