Abstract

Disasters have been a major subject of research considering damages caused in terms of losses of lives and properties and the functionality of critical services in cities. Floods generate large amounts of waste, causing several functional deteriorations, such as disrupted transportation, water supply, and wastewater management. Hence, it is necessary to establish an effective plan to secure urban resilience during the disaster response and recovery phases. This study proposes a method to reduce overlaps between disaster waste transportation routes and other emergency response activities after floods in the response and recovery phases. The network analysis of a geographic information system was used to analyze the supplying routes of evacuation, rescue/aid, hospital transportation, and police services for each disaster phase to reduce the overlapping of routes. The results showed that by using the proposed method, the average length of the disaster waste transportation routes increased by 25.29% and 9.80% in the response and recovery phases, respectively, whereas the length of the sections overlapping with the routes providing critical services decreased by 47.49% and 55.57% in the response and recovery phases, respectively. We believe that the proposed method identifies new corresponding key issues to establish disaster waste management plans to secure urban resilience after a disaster.

Highlights

  • Disasters cause losses of lives and properties in the region of damage, and deteriorate the functions of critical activities in the city

  • Floods generate large amounts of waste, which causes a variety of functional deteriorations, such as disrupted transportation, water supply, wastewater management, and electrical power services [1]

  • This study proposed a method for selecting the shortest disaster waste transportation routes by focusing on the disruption prediction of roads after a disaster and the overlapping routes used to supply critical services in the city

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Summary

Introduction

Disasters cause losses of lives and properties in the region of damage, and deteriorate the functions of critical activities in the city. Floods generate large amounts of waste, which causes a variety of functional deteriorations, such as disrupted transportation, water supply, wastewater management, and electrical power services [1]. As establishing an effective plan is crucial to prepare for a disaster [3,5], researchers have studied several effective management methods for various disasters. Previous studies on disaster waste transportation routes [4,6–8] have focused primarily on transportation efficiency; planning a short waste transportation distance is important for waste management and securing a city’s resilience after a disaster. Irrespective of whether the purpose was to select a disaster waste transportation route, some previous studies have considered the road network a primary analytic element for establishing an operation strategy to analyze the disruption of roads caused by disasters and to minimize or optimize the transportation cost or distance for the disaster waste collection and disposal processes

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