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Yoojung Yoon

Bio: Yoojung Yoon is an academic researcher from West Virginia University. The author has contributed to research in topics: Cost centre & Construction management. The author has an hindex of 7, co-authored 27 publications receiving 159 citations. Previous affiliations of Yoojung Yoon include Purdue University & Hong Kong University of Science and Technology.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the economic performance of seven cooling strategies developed by the combinations of widely used DC cooling systems is analyzed from an economic perspective, and the results show that Strategy 5 (A2_M: air-side economizer and supplementary cooling by a mechanical system) yields economic benefits of 26.84% in comparison to the conventional cooling system.

41 citations

Journal ArticleDOI
TL;DR: In this paper, a risk management protocol for construction companies to handle the risks through the analysis of completed construction projects is proposed, which consists of two phases: Phase-1, risk identification and analysis at the project level, and Phase-2, development of risk-handling strategies to control risks at the company level.
Abstract: To enhance the profitability of a construction company, risks that affect the profit of the company must be controlled as part of their long-term business planning. Project risk management is a systematic process used for managing risks. However, it is challenging to properly analyze the probability and impact of risks because of the inherent uncertainties associated with construction projects. Therefore, a practical risk management protocol is proposed for construction companies to handle the risks through the analysis of completed construction projects. The protocol consists of two phases: Phase-1, risk identification and analysis at the project level, and Phase-2, development of risk-handling strategies to control risks at the company level. The major contribution of the proposed protocol is that any construction company can practically utilize the protocol to establish risk management strategies by evaluating the effectiveness of the relationships among cost centers, profit centers, and extern...

29 citations

Journal ArticleDOI
TL;DR: In this paper, a model that estimates the optimal cost-effective renovation time of a building was proposed to estimate the benefits of improving a building's energy performance and mitigating its physical deterioration.
Abstract: The renovation of a building, instead of raising a new structure, is being scrutinized more closely at present as a sustainable alternative for reaping the benefits of improving a building’s energy performance and mitigating its physical deterioration. The extent of the benefits would be dependent on the optimal renovation time determined through the building owner’s decision-making process. Unfortunately, only a few studies have explored improvement of the decision-making process for determining an appropriate renovation time, making it difficult for building owners to conduct reliable cost-effective renovation planning. A model that estimates the optimal cost-effective renovation time of a building therefore would be a valuable tool, and the model introduced in this paper addresses this need. By applying the model to an actual renovation project as a case study, this model yielded 24 renovation alternatives for achieving a cost-effective renovation time, from which the optimal alternative was id...

17 citations

Journal ArticleDOI
TL;DR: The results of this study confirm that the proposed approach can significantly improve the multicriteria group decision-making results by providing a way to exclude biased judgments by decision-makers that can interfere with the development of one best alternative.
Abstract: This paper proposes a new method for multicriteria group decision-making processes.The method deals with the subjectivity issues in group decision-making processes.The method employs two concepts such as preference clustering and mediating agent.Sample concrete bridge decks were considered as a case study.The case study demonstrated the effectiveness to minimize the subjectivity issues. The problem-solving decision-making process often requires involvement of a group of individuals who have differing interests and conflicting multiple evaluation criteria. Therefore, the greatest concern in multiobjective group decision-making problems is how to arrive at a best decision that is agreeable to all the members of the group. Many previous studies focused on handling this concern based on decision rules, such as the consensus or ranking selection approaches. Although many contributions to the literature were made by past studies on this issue, disagreement remains on finding an effective way to address the subjectivity issue in group decision-making. This paper introduces a new approach called the preference clustering-based mediating group decision-making (PCM-GDM) method for minimizing the subjectivity issue. The PCM-GDM method basically employs two concepts: (1) clustering the preferences of the group members in a decision and (2) utilizing a mediating agent as a final decision-making tool. The new approach was applied to a case study of sample concrete bridge decks in the state of Indiana. The results of this study confirm that the proposed approach can significantly improve the multicriteria group decision-making results by providing a way to exclude biased judgments by decision-makers that can interfere with the development of one best alternative. The proposed approach advanced the reliability of the conventional decision-making knowledge, which is dependent on a consensus or the ranking of approaches by human experts to reach one solution.

11 citations


Cited by
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Journal ArticleDOI
TL;DR: This study provides a comprehensive review regarding using XR to solve a variety of construction project management issues effectively and efficiently and provides a roadmap for future efforts involving the implementation of XR technologies in the AEC industry.

176 citations

Journal ArticleDOI
TL;DR: In this article, the authors highlight the risks associated with highway construction projects in the United Arab Emirates (UAE) and identify the most significant risks through a detailed literature review and a questionnaire is developed to solicit the opinion of construction professionals as to the probability and impact of those risks in addition to their proper allocation.
Abstract: Highway construction projects carry substantial risks. This paper highlights the risks associated with highway construction projects in the United Arab Emirates (UAE). Thirty-three risks are identified through detailed literature review. A questionnaire is then developed to solicit the opinion of construction professionals as to the probability and impact of those risks in addition to their proper allocation. Fifty-one surveys were completed and used in the analysis. The priority of each risk is calculated by multiplying the probability with the impact for each risk. The priority helps identify the most significant risks. The relative importance index (RII) for the risk priority is calculated based on all responses for each risk. The most significant risks include inefficient planning, unexpected ground utilities, quality and integrity of design, delays in approvals, and delays in expropriations. Internal project risks are found to be more significant than external risks. Contractors and consultan...

147 citations

01 Jan 2002
TL;DR: In this article, the authors discuss the proposed three-step procedure of hazard identification, hazard assessment and risk management, and present the Code of Practice concerning the hazard maps involved the standard use of three col- ours (red, blue and yellow) to indicate areas of prohibited construction, construction with certain safety requirements and construction without re-striction.
Abstract: More than 6% of Switzerland is prone to slope instability. New federal regulations require regional authorities (cantons) to generate natural hazard maps and the zoning of mass movements to restrict development on hazard-prone land. The paper discusses the proposed three-step procedure of hazard identification, hazard assessment and risk management. The Codes of Practice concerning the hazard maps involve the standard use of three col- ours (red, blue and yellow) to indicate areas of prohibited construction, construction with certain safety requirements and construction without re- striction. ResumePlus de 6% du territoire suisse est soumis a des phenomenes d'instabilites de terrain. De nouv- elles bases legales exigent des autoritesr egionales l'etablissement de cartes de danger et le zonage pour les mouvements de terrain afin de restreindre le developpement dans les zones sensibles. Une pro- cedure en trois etapes comprend l'identification du danger, l'evaluation du danger et la gestion du ris- que. L'application dans l'amenagement de ces cartes de danger peut etre resumee ainsi: dans les zones rouges les constructions sont interdites, dans les zones bleues les constructions sont autorisees lors- que des prescriptions techniques de securitesont respectees et dans les zones jaunes les constructions sont autorisees.

101 citations

Journal ArticleDOI
TL;DR: In this paper, the authors present a review on the research and development in this field, covering the topics of thermal management techniques and associated evaluation metrics, and provide guidelines on research and strategies for thermal management and evaluation in data centers.

75 citations

Journal ArticleDOI
TL;DR: The main reasons for the public's negative emotions were fines, MSW sorting rules, fees, timing of throwing waste, and irregular recycling procedures, which can serve as a policy guide for practitioners and policy-makers to link current research areas into social development.

69 citations