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Measurement of city road network resilience in hazardous flood events

Mukesh M.S. (Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur, India)
Yashwant B. Katpatal (Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur, India)
Digambar S. Londhe (Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur, India)

International Journal of Disaster Resilience in the Built Environment

ISSN: 1759-5908

Article publication date: 9 November 2022

Issue publication date: 13 February 2024

239

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.

Keywords

Acknowledgements

This research did not receive any grant from public, commercial or not-for-profit funding agencies. The author wishes to thank the anonymous reviewers for their comments and suggestions and their colleagues for their support in the study.

Citation

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, Vol. 15 No. 2, pp. 274-288. https://doi.org/10.1108/IJDRBE-11-2021-0155

Publisher

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Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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