Addressing Risks in Green Retrofit Projects: The Case of Singapore

Hwang, Bon‐Gang; Zhao, Xianbo; See, Yi Lin.; Yun, Zhong

doi:10.1002/pmj.21512

Cited by 111 publications

(56 citation statements)

References 43 publications

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“…The independent sample t-test has been commonly used to examine whether the mean values of a specific variable from two independent groups were significantly different [16,52,59]. Table 4 suggests that there exists deviation between experienced and inexperienced respondents (Figure 3).…”

Section: T-testmentioning

confidence: 99%

Factors Affecting the Capital Cost of Prefabrication—A Case Study of China

Xue

Zhang

et al. 2017

Sustainability

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Abstract:As a sustainable construction method, prefabrication has become popular in many nations. However, there are many challenges for prefabrication, especially in terms of cost. Previous studies have revealed that higher capital cost was the most important barrier to the implementation of prefabrication. Thus, the objective of this study is to explore and evaluate the critical factors affecting the capital cost of prefabrication and examine how cost management may be affected by the "experience", "corporate responsibility", and "participant function" as a fix independent factors. To achieve the research objective, semi-structured interviews were conducted with 11 experts for the development of the questionnaire. Then, a questionnaire survey was conducted to investigate the significance of 49 factors related to prefabrication capital cost. The survey results revealed that "Specification and standards for prefabricated building design", "Related experience of manager", and "Rationality of precast component split" were the most critical factors. In addition, "experience", "corporate responsibility", and "participant function" had significant impact on the evaluation of capital cost factors. The findings can facilitate developing a benchmark framework for exploring the factors affecting the capital cost of prefabrication in China.

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Section: T-testmentioning

confidence: 99%

Factors Affecting the Capital Cost of Prefabrication—A Case Study of China

Xue

Zhang

et al. 2017

Sustainability

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“…After using their SNA-based risk management model to analyze risks in one green education building construction project in Australia, Yang and Zou [8] found that improving communications and interactions among various contracting parties could effectively mitigate risks in green building construction projects. In addition, Hwang, Zhao, See and Zhong [3] recommended a set of special measures to tackle risks in green retrofitting projects, and they highly recommended the following measures, hiring consultants with sufficient experience in managing green building construction projects to mitigate regulatory risk, increasing public awareness of the benefits of green buildings to minimize market risk, using the delivery method of Design & Build to settle communication issues among various contracting parties, and using equipment and materials that have been sufficiently tested to ensure project quality. Based on the literature review above [2,3,7,8,23,30], this study also compiled a list of 14 measures to mitigate risks in green residential building construction projects.…”

Section: Risk Mitigation Measures In Green Building Construction Projmentioning

confidence: 99%

“…They found that diverse stakeholders recognized ethical/reputational risks more widely and that technological risks were not important as perceived. Hwang, Zhao, See and Zhong [3] identified and evaluated 20 risk factors in green retrofit projects, and they discussed the top eight risk factors in details, including risks associated with post-retrofit tenants' cooperation, regulations, market demand, project finance, pre-retrofit tenants' cooperation, concerns from stakeholders, material supply and availability, and construction quality. Through a questionnaire survey, Qin, Mo and Jing [11] assessed risks in Chinese green building construction projects and found the top five critical risks were complicated approval procedures due to government bureaucracy, poor maintenance in green buildings, lack of design experience on green buildings, lack of experienced property management for green buildings, and inaccurate green goal established by the owner/developer.…”

Section: Risks In Green Building Construction Projectsmentioning

confidence: 99%

“…This RC index has been widely used in risk management-related studies [3,[37][38][39][40][41][42], and can be calculated using the following equations:…”

Section: Risk Criticality Indicesmentioning

confidence: 99%

“…Today it is widely recognized that human activities are accountable for various global crises such as climate change, resource depletion, and environmental degradation, and one representative of these activities is construction [1][2][3][4][5]. According to the United Nations Environment Program [6], the construction industry has become a big energy consumer who uses 40-50 percent of global energy and 40 percent of global raw materials; and also a principal waste contributor who releases 40 percent of global greenhouse gas emissions and produces 40 percent of solid waste worldwide.…”

Section: Introductionmentioning

confidence: 99%

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An Exploratory Analysis of Risks in Green Residential Building Construction Projects: The Case of Singapore

et al. 2017

Self Cite

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Abstract:Recently, an increasing number of green residential buildings have been developed worldwide owing to active promotion from the authorities and increasing interest from customers. However, in the same way as traditional residential buildings, the construction of green residential buildings faces various risks. The aims of this study are to identify and assess the diverse risks in green residential building construction projects, compare their risk criticalities with those in traditional counterparts, and propose helpful risk mitigation measures. To achieve these goals, a comprehensive literature review was first conducted, and a questionnaire was then administered to 30 construction companies in Singapore. Survey results showed that "complex procedures to obtain approvals", "overlooked high initial cost", "unclear requirements of owners", "employment constraint", and "lack of availability of green materials and equipment" were the top five critical risks in green residential building construction projects. Survey results also showed that green residential building projects were facing risks at a more critical level than those traditional residential building projects. Additionally, this study proposed fourteen risk mitigation measures to tackle the risks in green residential building construction projects. This study has contributed to the body of knowledge by identifying and evaluating the critical risks and mitigation measures in green residential building construction projects. Meanwhile, the findings from this study can also provide an in-depth understanding of risk management in green residential building construction projects to practitioners and thus benefit the practice.

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What are the green technologies for sustainable housing development? An empirical study in Ghana

2018

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The housing industry is a major contributor to global climate change, environmental pollution, and resource depletion. The adoption of green technologies in housing development is a way to realize sustainable development goals. This research aims to identify the green technologies that are important to achieve sustainable housing development, in particular Accra, Ghana. Due to differences in climate, focusing on Accra helps validate the findings of this study. To achieve the objective, 28 green technologies were identified from a comprehensive literature review, and a questionnaire survey was done with 43 professionals with green building experience. The results indicated that application of natural ventilation, application of energy-efficient lighting systems, optimizing building orientation and configuration, application of energy-efficient high efficient heating, ventilation, and air-conditioning system, and installation of water-efficient appliances and fixtures were the five most important green technologies to achieve sustainable housing development. Furthermore, water efficiency technologies and energy efficiency technologies had the highest level of importance. The identified green technologies form a conceptual framework which can be used to guide the identification and selection of green technologies for sustainable housing development. The research findings would be useful for industry professionals responsible for decision making during the design stage of housing developments.Theoretically, this study adds to the literature by presenting one of the first studies in its kind focusing on green technologies for sustainable housing development within the Ghanaian context.

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Addressing Risks in Green Retrofit Projects: The Case of Singapore

Cited by 111 publications

References 43 publications

Factors Affecting the Capital Cost of Prefabrication—A Case Study of China

Factors Affecting the Capital Cost of Prefabrication—A Case Study of China

An Exploratory Analysis of Risks in Green Residential Building Construction Projects: The Case of Singapore

What are the green technologies for sustainable housing development? An empirical study in Ghana

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