A Hybrid Multi-Criteria Analysis Model for Solving the Facility Location–Allocation Problem: A Case Study of Infectious Waste Disposal


  • Narong Wichapa Department of Industrial Engineering, Kalasin University, Kalasin 46000,
  • Porntep Khokhajaikiat Department of Industrial Engineering, Khon Kaen University, Khon Kaen 40002,




facility location–allocation problem, Fuzzy AHP, Fuzzy TOPSIS, infectious waste disposal, multi-criteria decision making


Choosing locations for infectious waste disposal (IWD) is one of the most significant issues in hazardous waste management due to the risk imposed on the environment and human life. This risk can be the result of an undesirable location of IWD facilities. In this study a hybrid multi-criteria analysis (Hybrid MCA) model for solving the facility location–allocation (FLA) problem for IWD was developed by combining two objectives: total cost minimization and weight maximization. Based on an actual case of forty-seven hospitals and three candidate municipalities in the northeastern region of Thailand, first, the Fuzzy AHP and Fuzzy TOPSIS techniques were integrated to determine the closeness of the coefficient weights of each candidate municipality. After that, these weights were converted to weighting factors and then these factors were taken into the objective function of the FLA model. The results showed that the Hybrid MCA model can help decision makers to locate disposal centers, hospitals and incinerator size simultaneously. Besides that the model can be extended by incorporating additional selection criteria/objectives. Therefore, it is believed that it can also be useful for addressing other complex problems.


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How to Cite

Wichapa, N., & Khokhajaikiat, P. (2018). A Hybrid Multi-Criteria Analysis Model for Solving the Facility Location–Allocation Problem: A Case Study of Infectious Waste Disposal. Journal of Engineering and Technological Sciences, 50(5), 698-718. https://doi.org/10.5614/j.eng.technol.sci.2018.50.5.8