交通运输研究2015，Vol.1Issue(6)：20-25,6.DOI:10.16503/j.cnki.2095-9931.2015.06.004
复杂城市交通网络拥堵传播的改进SIS模型
Improved SIS Model of Congestion Propagation of Complex Urban Traffic Network
摘要
Abstract
In order to deeply analyze the dynamic evolution of urban traffic network congestion, an im-proved SIS model of traffic congestion propagation was established. The probabilities of an unimpeded node changing to congested one and then recovering unimpeded one were dynamically calculated accord-ing to the random factors′influence on it, the conditions and influence abilities of its neighbor nodes and the coupling strength of nodes with different conditions. Moreover, the influence of propagation time of different traffic states on the propagation was considered in this model. Simulated based on BA scale-free network, the evolution of congestion over time was concordant with relevant researches, which veri-fied the effectiveness of this model. The simulation results show that the influence of random factors on initial size of congestion, propagation speed and congestion level at steady state is different according to node properties;the interaction between nodes with different states plays an important role in congestion propagation;the influence of ratio between propagation time of unimpeded state and congestion state ex-ists threshold;the volatilities of propagation time under different states have a certain influence on con-gestion propagation speed and congestion level of equilibrium state.关键词
BA无标度网络/交通拥堵传播/改进SIS模型/复杂城市交通网络/仿真分析Key words
BA scale-free network/traffic congestion propagation/improved SIS model/complex ur?ban traffic network/simulation analysis分类
交通工程引用本文复制引用
张俊锋,马昌喜,吴芳,蒲菡,贾富强..复杂城市交通网络拥堵传播的改进SIS模型[J].交通运输研究,2015,1(6):20-25,6.基金项目
国家自然科学基金项目(51408288) （51408288）
