Research on urban transport network topology vulnerability identification under rainfall conditions
by Weiwei Liu; Yang Tang; Fei Yang; Yi Dou; Jin Wang
International Journal of Embedded Systems (IJES), Vol. 13, No. 3, 2020

Abstract: Under the impact of global climate change, meteorological disasters, such as rainstorms, have occurred frequently during recent years and have led to several severe disruptions of transport network in urban areas. In order to minimise the risk of potential losses of life and properties, this paper presents a method to identify topology vulnerability of road networks for a range of rainfall scenarios. Meanwhile, a review is presented regarding the theories and methods of vulnerability analysis. The paper defines the concept of vulnerability of road network considering the intensity of rainfall. It establishes a comprehensive assessment index of 'importance of nodes and edges' by combining the 'betweenness and traffic flow' to find out the source of road network fragility considering the intensity of rainfall. Afterwards, the assessment index 'mincuts frequency vector' is introduced into the assessment of topology vulnerability. This paper provided the scientific basis for disaster control and reduction of the urban road network.

Online publication date: Wed, 30-Sep-2020

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