Nguyen, Duy Hung (2022) Evaluating risk factors in green building: The case of sustainable construction in Vietnam. PhD thesis, Università degli Studi di Padova, Italy.
Abstract
Green buildings have been developing in line with the sustainability trend over the world. However, green building projects frequently face more risks than traditional projects because of adopting innovative sustainability technologies. Consequently, risk management in green building projects is more complicated and necessary than conventional projects. A systematic literature review was conducted by analyzing 64 relevant studies from 2006 to 2020. The results revealed that green building risk is somewhat a nascent but growing topic and almost limited to several developed economies such as Singapore, the US, Australia, and China. There are very few green building risk studies in developing countries. Thus, this thesis aimed to investigate green building risks in Vietnam, a typical developing country in Asia. In the first step, this research identified 53 risk factors that green building projects frequently confront based on a comprehensive literature review and interviewing green building experts. A survey of 207 construction professionals was then conducted to assess and validate these risk factors. The result provided a list of risks classified and evaluated according to green building projects' life-cycle, and thus may serve as a helpful reference guide within the construction sector. The next step explored the relationship between participants' characteristics and risk assessment. Notably, the ANOVA analysis revealed that risk assessment negatively correlates with participants' green building experience, while their industry experience does not affect risk assessment. This implies the essential role of professionals with rich green building experience in risk management in green building projects. Furthermore, the hierarchical regression analysis proved that participant roles do not moderate the relationship between green building experience and risk assessment. Also, the results revealed no significant differences in risk perspectives among various project roles. After that, exploratory factor analysis was conducted to examine risk structure and latent risk components. The results exposed the most critical 30 risk factors loaded under six risk components: (1) human resource and technical risk in the construction phase; (2) performance risk in the operation phase; (3) human resource risk in the design phase; (4) financial risk; (5) regulation and complexity risk; and (6) material risk. Finally, this study developed a risk assessment model based on the results of the exploratory factor analysis. This model adopted the fuzzy synthetic evaluation method to assess green building risks. Notably, this model considered the three most crucial risk features: impact level, occurrence probability, and manageability. To validate the model effectiveness, the second questionnaire survey of 58 green building professionals was conducted in Vietnam. Based on the experts' assessments, the proposed model was applied to determine the significance of risk factors, risk groups, and the overall risk in green building projects. The findings exposed that green building risks are relatively high, implying risk management is essential for developing green building projects in Vietnam. The results indicated that "lack experience of GB designers" was the most critical factor while "human resources risk in the design phase" was the top crucial risk group. This result provided detailed risk evaluations, thus becoming a helpful reference guide for construction practitioners. Additionally, this study contributed a reliable and practical model to help practitioners manage risks in green building projects.
| Item Type: | Thesis (Doctoral) |
|---|---|
| Thesis advisor: | Macchion, Laura |
| Index terms: | becoming, systematic literature review, operation phase, regression analysis, designer, material risk, face, literature review, China, risk management, developing country, practitioner, risk factor, effectiveness, critical factor, Vietnam, Asia, exploratory factor analysis, regulation, complexity, questionnaire, green building, construction phase, survey, sustainable construction, risk assessment, Australia, construction practitioner, construction professional, design phase, Singapore, construction sector, human resource, fuzzy synthetic evaluation |
| Subjects: | decision-making and optimization, statistical analysis, Geography, project delivery, data analysis and analytics, political science, professional development, practitioner, regions and continents, industry analysis, psychology, development economics, performance management, research evaluation and metrics, design practice, philosophical process, data collection methods, environmental hazards, professional practice, profession, financial risk, risk assessment, sustainable construction, systems engineering, management |
| Topics: | Geographical Context, International Construction, Engineering Principles, Roles and Professions, Project Management, Research Practice, Organizational Design, Cost Management, Information Management, Risk Management, Governance, Design Practice, Sustainability, Quality Management, Human Resources |
| Descriptive scope: | 5 PCTEA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here