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Reliability analysis of road networks in disaster waste management
- Cheng, Cheng, Zhang, Lihai, Thompson, Russell George
- Waste management 2019 v.84 pp. 383-393
- case studies, decision making, disasters, roads, waste management, wastes
- The condition of road networks which connect disaster affected areas and final disposal sites has a critical role in the management of disaster waste. In this paper, we present a two-stage framework to estimate the overall reliability and failure modes of a disaster waste management system considering the reliability of each route involved in the road network. In the first stage, first order reliability method and Ditlevsen bounds are applied to estimate system reliability. In the second stage, an event tree approach is implemented to analyse the failure modes of the system. The methodology is demonstrated with an artificial case study considering three different scales of disasters. The results obtained from the case study can provide information to decision makers regarding the priority of the routes in the system and the most likely failure mode.