M.S, M; Katpatal, Y B and Londhe, D S (2024) Measurement of city road network resilience in hazardous flood events. International Journal of Disaster Resilience in the Built Environment, 15(2), pp. 274-288. ISSN 1759-5916
Abstract
Purpose: Recently, the serviceability of the transportation infrastructure in urban areas has become crucial. Any impact of the hazardous conditions on the urban road network causes significant disruption to the functioning of the urban region, making the city’s resilience a point of concern. Thereby, the purpose of the study is to examine the city’s recovery capacity to absorb the impacts of adverse events like urban floods. Design/methodology/approach: This study examines the road network resilience for an urban flood event for zones proposed by the Municipal Corporation to develop multiple central business districts. This study proposes a novel approach to measure the resilience of road networks in an urban region under floods caused due to heavy rainfall. A novel Road Network Resilience Index (RNRI) based on the serviceability of the road network during floods is proposed, estimated using Analytic Hierarchy Process - Multiple Criteria Evaluation (AHP-MCE) approaches by using the change in street centrality, impervious area and road network density. This study examines and analyses the resilience of road networks in two conditions: flood and nonflood conditions. Resilience was estimated for both the conditions at the city level and the decentralized zone level. Findings: Based on RNRI values, this study identifies zones having a lower or higher resilience index. The central, southern and eastern zones have lower road network resilience and western and northern zones have high road network resilience. Practical implications: The proposed methodology can be used to increase road network resilience within the city under flood conditions. Originality/value: The previous literature on road network resilience concentrates on the physical properties of roads after flood events. This study demonstrates the use of nonstructural measures to improve the resilience of the road network by innovatively using the AHP-MCE approach and street centrality to measure the resilience of the road network.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | resilience index; road network; street centrality; transport infrastructure; urban flood; vehicular mobility |
| Index terms: | physical property, transportation infrastructure, recovery, density, mobility, criteria evaluation, urban area, methodology, rainfall, transport infrastructure |
| Subjects: | analytical methods, operations management, climate science, infrastructure and transport systems, decision analysis, material properties and characteristics, research methods, urban form and morphology |
| Topics: | Urban Studies, Construction Materials, Engineering Principles, Project Management, Research Practice, Sustainability, Risk Management |
| Descriptive scope: | 3 PCT |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here