The Experts below are selected from a list of 6539556 Experts worldwide ranked by ideXlab platform
Guomin Zhang - One of the best experts on this subject based on the ideXlab platform.
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Direct and indirect impact assessment in Off-Site construction—A case study in China
Sustainable Cities and Society, 2019Co-Authors: Malindu Sandanayake, Wenkai Luo, Guomin ZhangAbstract:Abstract Off-Site construction is a popular construction technique due to improvements in construction time and efficiency. However, a typical construction will incur several air emission substances which can be categorised as direct and indirect emissions. The effect of these pollutant substances may have severe health impacts on the immediate surrounding environment of the construction site. The study attempts to quantify direct and indirect emissions associated with Off-Site construction and compare with traditional on-site construction. Two case studies in Chengdu, China is used to investigate the direct and indirect impacts of Off-Site construction as compared to conventional construction. The results indicate GHG emissions reduction of 8.40% for Off-Site construction. Impact assessment revealed pre-fabrication having more reduction on global warming and oxidation formation at global level and eutrophication, human toxicity and acidification at regional and local environment. Further analysis revealed a strong relationship between the transportation distance and the level of pre-fabrication on total carbon emission reduction. The methodology provided in the current study exemplified the importance of conducting a well-articulated assessment to help decision making on environmental impact reduction in Off-Site construction. The results conclude the importance of developing a structured decision making platform to assist the sustainable decision makings in future.
Malindu Sandanayake - One of the best experts on this subject based on the ideXlab platform.
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Direct and indirect impact assessment in Off-Site construction—A case study in China
Sustainable Cities and Society, 2019Co-Authors: Malindu Sandanayake, Wenkai Luo, Guomin ZhangAbstract:Abstract Off-Site construction is a popular construction technique due to improvements in construction time and efficiency. However, a typical construction will incur several air emission substances which can be categorised as direct and indirect emissions. The effect of these pollutant substances may have severe health impacts on the immediate surrounding environment of the construction site. The study attempts to quantify direct and indirect emissions associated with Off-Site construction and compare with traditional on-site construction. Two case studies in Chengdu, China is used to investigate the direct and indirect impacts of Off-Site construction as compared to conventional construction. The results indicate GHG emissions reduction of 8.40% for Off-Site construction. Impact assessment revealed pre-fabrication having more reduction on global warming and oxidation formation at global level and eutrophication, human toxicity and acidification at regional and local environment. Further analysis revealed a strong relationship between the transportation distance and the level of pre-fabrication on total carbon emission reduction. The methodology provided in the current study exemplified the importance of conducting a well-articulated assessment to help decision making on environmental impact reduction in Off-Site construction. The results conclude the importance of developing a structured decision making platform to assist the sustainable decision makings in future.
Kamarul Anuar Mohamad Kamar - One of the best experts on this subject based on the ideXlab platform.
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Aspects of off‐site manufacturing application towards sustainable construction in Malaysia
Construction Innovation, 2012Co-Authors: Zuhairi Abd Hamid, Kamarul Anuar Mohamad KamarAbstract:Purpose – The purpose of this paper is to identify the contribution of off‐site manufacturing application towards sustainable construction.Design/methodology/approach – The paper looks at different views and ideas of sustainable construction and assesses the impact of off‐site manufacturing towards sustainability.Findings – Many aspects of off‐site manufacturing practices and applications are contributing to sustainable construction.Originality/value – The paper is of value as it outlines to researcher and practitioner on the values of off‐site manufacturing, i.e. on environmental impacts, ease of construction, construction time saving and construction waste management.
F.k.t. Cheung - One of the best experts on this subject based on the ideXlab platform.
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BIM in Off-Site manufacturing for buildings
Journal of Building Engineering, 2017Co-Authors: F.h. Abanda, Joseph H. M. Tah, F.k.t. CheungAbstract:Abstract The need to overcome challenges faced by construction industry has been at the core of many government reports. Most of the reports suggest the adoption of innovations including Off-Site manufacture and emerging Building Information Modelling (BIM) to overcome the challenges facing the industry. Current research has largely focused on the impacts of Off-Site manufacture and BIM independently applied on traditional construction methods. Due to the factory-based nature of Off-Site manufacture, the benefits of BIM on Off-Site manufacture have been widely argued to be far greater than those of traditional construction. However, studies about impacts of BIM on Off-Site manufacture are scarce with far too many on traditional construction. This study investigates the implications of BIM systems on Off-Site manufacture and traditional construction methods, with emphasis on the technological potential of BIM for Off-Site manufacture. The specific objectives of the study are threefold. Firstly, it examines how BIM can support Off-Site manufacture. Secondly, the paper discusses the benefits of BIM and explains how BIM can overcome barriers hindering the uptake of Off-Site manufacturing. Thirdly, due to the importance to measure the benefits to support wider adoption, an examination of the published quantitative benefits of BIM on Off-Site manufacture and traditional construction is undertaken. A critical appraisal of the literature was undertaken to achieve the aim of this study. The main findings are the identification of qualitative and quantitative benefits of: BIM on Off-Site manufacture, Off-Site manufacture and BIM on traditional construction. The findings reinforce the argument that BIM adoption on Off-Site manufacturing projects is a rapid, efficient and one of the best ways to improve on the long standing challenges that have plagued the construction industry for generations.
Alistair G.f. Gibb - One of the best experts on this subject based on the ideXlab platform.
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Assessing Project Suitability for Off-Site Production
Construction Economics and Building, 2012Co-Authors: Ng Blismas, Alistair G.f. Gibb, Christine PasquireAbstract:Implementation of Off-Site production on construction projects isoften hindered by a number of specific process and procurementconstraints. These constraints are largely influenced by decisionswithin the control of construction clients, suggesting that theyhave a significant influence over the adoption of Off-Site productioninto construction projects. However, an appreciation of the effectof these constraints has been lacking. Addressing this need, anOff-Site production implementation assessment instrument thatresides within a larger toolkit (IMMPREST) was developed usingquestionnaire survey data and a series of industrial workshops.IMMPREST is an interactive electronic toolkit developed byLoughborough University (UK), in conjunction with eleven industrialpartners, which facilitates the evaluation of benefit arising fromuse of Off-Site production within construction. It identifies thefactors that need to be considered for an evaluation, the datarequired to assess the effect of these factors, and where therequired data resides within the supply chain. Development ofthe implementation assessment instrument is discussed, whilstalso making reference to the role that clients can play in creatingthe process and procurement conditions that promote rather thanconstrain the adoption of Off-Site production.
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Strategies for integrating the use of Off-Site production technologies in house building
Journal of Construction Engineering and Management, 2012Co-Authors: Wei Pan, Alistair G.f. Gibb, Andrew R.j. DaintyAbstract:Despite extensive research into attitudes and practice surrounding the uptake of Off-Site production technologies, there is limited understanding of how best to integrate their use into business processes at the organizational level. Drawing on an action-research case study with a leading U.K. house-building organization, this paper scrutinizes the processes through which Off-Site technologies were adopted and utilized. The use of Off-Site methods was fundamentally framed by the key stages and business milestone reviews of the house-building process, which together represented a complex and multilayered structure of business management. Five Off-Site reviews were aligned with the business processes. Strategies for integrating the use of Off-Site technologies are examined. It was crucial to establish an overall Off-Site strategy and integrate it into the process from land acquisition on. Organizational learning embraced the adoption of Off-Site methods, whereas extra reporting and management efforts introduced bureaucracy. Culture change was commonly perceived as difficult and painful. Earlier engagement with supply chains was advocated for favoring the Off-Site approach and improving business efficiency, whereas it also demanded greater commitment of the house builder to specific supply chains and therefore exposed the business to risks associated with planning and market changes. The strategies should facilitate building companies’ strategic management of Off-Site technology.
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benefit evaluation for off site production in construction
Construction Management and Economics, 2006Co-Authors: Ng Blismas, C L Pasquire, Alistair G.f. GibbAbstract:Evaluating to what extent a component or building system should be produced Off-Site is inadequate within the industry. The potential benefits of Off-Site production (OSP) are commonly cited when justifying an OSP approach, yet holistic and methodical assessments of the applicability and overall benefit of these solutions, to a particular project, have been found to be deficient. Common methods of evaluation simply take material, labour and transportation costs into account when comparing various options, often disregarding other cost-related items such as site facilities, crane use and rectification of works. These cost factors are usually buried within the nebulous preliminaries figure, with little reference to the building approach taken. Further, softer issues such as health and safety, effects on management and process benefits are either implicit or disregarded within these comparison exercises. Yet it is demonstrated that these issues are some of the most significant benefits of OSP. A series of case studies demonstrated that evaluation focus is almost solely on direct material and labour costs of components, without explicit regard for the wider cost or soft issue implications of OSP on a project. The paper argues that until evaluation is more holistic and value-based rather than cost-based, OSP uptake in construction will be slow.
