论文部分内容阅读
基于复杂网络级联失效原理,在研究道路网络复杂特征基础上,对城市道路网络的级联失效演变机理进行了分析;结合路段混合选择效用表达式,对路段负载进行了重新定义,并借助MATLAB设计了计算程序;建立了基于混合效用的道路网络级联失效模型,分析了混合效用对道路网络中路段级联失效演变产生的定量影响;结合算例,通过模拟不同的负载容限、交通通行条件和驾驶者心理等变化对路段以及整个道路网络级联失效产生的影响,结果与实际情况是相符的;通过本研究,为城市道路网络级联失效的预防和控制提供一定的理论依据。
Based on the complex network cascading failure theory, this paper analyzes the evolution mechanism of cascade failure of urban road network based on the study of complex features of road network. By combining the selection of road sections with utility expression, the load of road section is redefined. The calculation program is designed. A cascade failure model of road network based on hybrid utility is established, and the quantitative effect of the hybrid utility on the cascade failure of road network is analyzed. By combining the examples, different load tolerances, Conditions and driver psychology on the failure of cascades in the road network and the whole road network. The results are consistent with the actual situation. This study provides a theoretical basis for the prevention and control of the cascade failure of urban road networks.