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Dr. Shaoqing Geng
Beijing Jiaotong University

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0 Humanitarian Logistics
0 location allocation
0 Literature review
0 Humanitarian supply chain management
0 Emergency shelter

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Journal article
Published: 09 August 2021 in Mathematics
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Earthquakes have catastrophic effects on the affected population, especially in undeveloped countries or regions. Minimizing the impact and consequences of earthquakes involves many decisions and disaster relief operations that should be optimized. A critical disaster management problem is to construct shelters with reasonable capacity in the right locations, allocate evacuees, and provide relief materials to them within a reasonable period. This study proposes a bi-objective hierarchical model with two stages, namely, the temporary shelter stage and the short-term shelter stage. The proposed objectives at different stages are to minimize the evacuation time, maximize the suitability based on qualitative factors, and minimize the number of sites while considering the demand, capacity, utilization, and budget constraints. The performance evaluation of the emergency shelter was carried out by fuzzy-VIKOR, and the most ideal location of the shelter was determined through multiple standards. Emergency management organizations can benefit from the collective expertise of multiple decision-makers because the proposed method uses their knowledge to automate the location and allocation process of shelters. In the case of Chengdu, Sichuan Province, China, the results of using this hybrid approach provide the government with a range of options. This method can realize the trade-off between efficiency and cost in the emergency shelter location and material distribution, and realize reliable solutions in disaster emergencies.

ACS Style

Shaoqing Geng; Hanping Hou; Zhou Zhou. A Hybrid Approach of VIKOR and Bi-Objective Decision Model for Emergency Shelter Location–Allocation to Respond to Earthquakes. Mathematics 2021, 9, 1897 .

AMA Style

Shaoqing Geng, Hanping Hou, Zhou Zhou. A Hybrid Approach of VIKOR and Bi-Objective Decision Model for Emergency Shelter Location–Allocation to Respond to Earthquakes. Mathematics. 2021; 9 (16):1897.

Chicago/Turabian Style

Shaoqing Geng; Hanping Hou; Zhou Zhou. 2021. "A Hybrid Approach of VIKOR and Bi-Objective Decision Model for Emergency Shelter Location–Allocation to Respond to Earthquakes." Mathematics 9, no. 16: 1897.

Journal article
Published: 07 August 2021 in Sustainability
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In recent years, frequent natural disasters have brought huge losses to human lives and property, directly affecting social stability and economic development. Since the driving factor of disaster management operations is speed, it will face severe challenges and tremendous pressure when matching the supply of emergency resources with the demand. However, it is difficult to figure out the demands of the affected area until the initial post-disaster assessment is completed and demand is constantly changing. The focus of this paper is to stratify the evacuation needs and predict the number of evacuees and supplies demanded after an earthquake. This research takes a large-scale earthquake as an example to analyze the characteristics of evacuation demand stratification and the factors that affect the demands of evacuees. The forecast model for the number of evacuees is selected and improved. Moreover, combining the influencing factors of materials demand and the number of evacuees, a forecast model of materials demand for evacuees is constructed. The proposed model is used in the case of the Ya’an earthquake in China to estimate the number of evacuees and the daily need for emergency supplies.

ACS Style

Shaoqing Geng; Hanping Hou. Demand Stratification and Prediction of Evacuees after Earthquakes. Sustainability 2021, 13, 8837 .

AMA Style

Shaoqing Geng, Hanping Hou. Demand Stratification and Prediction of Evacuees after Earthquakes. Sustainability. 2021; 13 (16):8837.

Chicago/Turabian Style

Shaoqing Geng; Hanping Hou. 2021. "Demand Stratification and Prediction of Evacuees after Earthquakes." Sustainability 13, no. 16: 8837.

Journal article
Published: 15 May 2021 in Sustainability
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Natural disasters cause serious damage to buildings and infrastructure, and victims lose a comfortable living environment. A large number of people are left homeless. Emergency shelter is an important component that cannot be ignored in the comprehensive disaster prevention and mitigation plan. However, to the best of our knowledge, no study has collectively taken into account the rapid and accurate resettlement of evacuees by taking stratification of demand, distribution of supplies, and diversion evacuation as an organic model. Given the bottleneck of rapid and accurate resettlement in the complex sheltered environment, we combine field research, literature analysis, and previous case study. This paper explains that the three main factors that affect the resettlement of evacuees are the complexity of demand, the shortage of materials, and the blindness of refuge. Additionally, then an effective analysis framework of the hierarchy of demand, distribution rapidity and refuge accuracy are constructed. Finally, this paper puts forward the structural framework of demand for layered, comprehensive distribution and diversion of evacuees and further explains the structure relationship, mode of rescue and operation strategy of effective resettlement of evacuees.

ACS Style

Shaoqing Geng; Hanping Hou; Jiaxin Geng. The Mechanism of Operation Effectiveness of Emergency Shelter Rescue Systems. Sustainability 2021, 13, 5540 .

AMA Style

Shaoqing Geng, Hanping Hou, Jiaxin Geng. The Mechanism of Operation Effectiveness of Emergency Shelter Rescue Systems. Sustainability. 2021; 13 (10):5540.

Chicago/Turabian Style

Shaoqing Geng; Hanping Hou; Jiaxin Geng. 2021. "The Mechanism of Operation Effectiveness of Emergency Shelter Rescue Systems." Sustainability 13, no. 10: 5540.

Journal article
Published: 27 February 2020 in Sustainability
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Natural disasters can cause serious casualties and economic losses, and emergency shelters are effective measures to reduce disaster risks and protect lives. At present, the location models of refuge facilities often ignore the diversion of shelter from the perspective of humanitarian logistics and the needs of victims. Such models also seldom consider the impact of the pre-storage of relief materials on the location of shelters. In this study, on the basis of the different needs of disaster victims, shelters are divided into two types—basic life and psychological medical service guarantees. While considering the full coverage of shelter needs, capacities, and budget constraints, the shelter distance, the optimized distribution of refugees, and the pre-stock quantity of goods are optimized. The facility service quality is optimized on the basis of qualitative factors. This study proposes a multi-standard constrained site selection model to optimize the pre-disaster shelter site-allocation problem. The model is helpful for decision makers to influence shelter siting and victims’ allocating process through their expertise and to obtain a solution that compromises multiple objectives. In this study, several basic cases are generated from the actual data of certain areas in Sichuan Province, a disaster-prone region in China, to verify the effectiveness of the model.

ACS Style

Shaoqing Geng; Hanping Hou; Shaoguang Zhang. Multi-Criteria Location Model of Emergency Shelters in Humanitarian Logistics. Sustainability 2020, 12, 1759 .

AMA Style

Shaoqing Geng, Hanping Hou, Shaoguang Zhang. Multi-Criteria Location Model of Emergency Shelters in Humanitarian Logistics. Sustainability. 2020; 12 (5):1759.

Chicago/Turabian Style

Shaoqing Geng; Hanping Hou; Shaoguang Zhang. 2020. "Multi-Criteria Location Model of Emergency Shelters in Humanitarian Logistics." Sustainability 12, no. 5: 1759.