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Hybrid Simulation Framework for Immediate Facility Restoration Planning after a Catastrophic Disaster
- Title
- Hybrid Simulation Framework for Immediate Facility Restoration Planning after a Catastrophic Disaster
- Authors
- Hwang, Sungjoo; Park, Moonseo; Lee, Hyun-Soo; Lee, SangHyun
- Ewha Authors
- 황성주
- SCOPUS Author ID
- 황성주
- Issue Date
- 2016
- Journal Title
- JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT
- ISSN
- 0733-9364
1943-7862
- Citation
- JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT vol. 142, no. 8
- Keywords
- Computer models; Construction management; Disaster recovery; Restoration; Simulation; Project planning and design
- Publisher
- ASCE-AMER SOC CIVIL ENGINEERS
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- Since the effects of external conditions, such as limited resource supplies and poor working environments in damaged regions, are critical to facility restoration projects after a catastrophic disaster, a lack of understanding regarding restoration conditions may lead to unexpected delays and additional project costs. The fact that various elements of postdisaster restoration conditions interact with each other and vary with a facility's surrounding damage and recovery situations over time makes many stakeholders' comprehension even more challenging. To support immediate and appropriate facility restoration planning under changing project conditions, this study developed a hybrid system dynamics (SD)-discrete event simulation (DES) framework. In this hybrid restoration simulation, SD allows for a comprehensive understanding of the dynamic features of various restoration conditions, while DES enables an in-depth examination of facility restoration operations according to external condition changes. By allowing two simulations to seamlessly interact together, this study provides key insights into postdisaster restoration, including how complex and critical restoration conditions change over time depending on facility types and subregions, and to what extent these conditions adversely impact a project's performance and uncertainty throughout lengthy project durations, especially when restoration work scope and processes vary with damage patterns. A test tool for analyzing the effectiveness of managerial policies is also provided by showing experimental results. For instance, a project initiation, postponed to avoid unfavorable restoration conditions, can be delayed to reduce the project's uncertainty by alleviating possible increases in wasted time and cost of running an unproductive site. Therefore, the major contribution of this research to the body of knowledge in construction engineering resides in the capacity for the developed hybrid model to make facility restoration planning and execution deal with project uncertainties caused by chaotic and disrupting external conditions. As such, unexpected delays and additional costs common for postdisaster recovery can be alleviated.
- DOI
- 10.1061/(ASCE)CO.1943-7862.0001146
- Appears in Collections:
- 공과대학 > 건축도시시스템공학과 > Journal papers
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