Abstract
The concepts of sustainability and resilience have become very popular in the field of urban infrastructure. This paper reviews previous research on sustainability and resilience of urban infrastructure. The concepts of urban infrastructure’s sustainability and resilience are compared from the perspectives of dimensions, properties, goals, and methodologies. The paper systematically assesses the sustainability and resilience of urban infrastructure by using the concept of the grade point average (GPA). The GPA of urban infrastructure’s sustainability and resilience (urban infrastructure SR-GPA) is proposed as a unified concept. The assessment index system of urban infrastructure SR-GPA is constructed from five dimensions including demand, status, influence, resource, and measure. The analytic network process (ANP) is used to assess urban infrastructure SR-GPA considering the interaction between the indexes. The ANP structure model of urban infrastructure SR-GPA is established based on the assessment method and index system. The Harbin subway SR-GPA is selected as an empirical study to test the applicability of the proposed assessment method. The results show that the assessment indexes have different impacts on urban infrastructure SR-GPA. The Harbin subway SR-GPA is in a low level and can be upgraded through increasing construction investment, allocating resources efficiently, and considering resilience in the whole life cycle.
Highlights
Sustainability and resilience have different origins and evolve separately in theory and practice, they share certain common connotations with the development of human society. ere are some similarities between sustainability and resilience in the whole life cycle of urban infrastructure
Is study proposed a new unified assessment approach for urban infrastructure sustainability and resilience using the concept of urban infrastructure SR-grade point average (GPA). e GPA of urban infrastructure’s sustainability and resilience is proposed as a unified concept
E assessment index system of urban infrastructure SRGPA is constructed from five dimensions including demand, status, influence, resource, and measure. e analytic network process (ANP) is used to assess urban infrastructure SR-GPA considering the interaction between the indexes
Summary
Sustainability of urban infrastructure can be concluded as the unity of environmental, economic, and social dimension. Bocchini et al compare similarities and differences between sustainability and resilience in the civil infrastructure domain [12]. Social and economic dimensions are used for assessing both sustainability and resilience [44]. As the sustainability and resilience of urban infrastructure share so many similarities, scholars have attempted to combine these two concepts for assessment [47]. Some conceptual descriptions are used to apply the properties of resilience on assessing urban infrastructure sustainability [12, 49, 50]. E concept of sustainability is used to assess infrastructure resilience from environmental dimension. A unified assessment approach should be constructed for assessing the sustainability and resilience of urban infrastructure together [12, 61]
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