Current State of Off-Site Manufacturing in Australian and Chinese Residential Construction

Khalfan, Malik; Maqsood, Tayyab

doi:10.1155/2014/164863

Cited by 41 publications

(37 citation statements)

References 15 publications

(25 reference statements)

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“…As [25] An incentive from the government for programme was ranked as the third method to improve the implementation of construction robotics technologies.The government had introduced the Construction Industry Transformation Programme (CITP), 2016-2020, to propel the industry forward and meet the market demand [19]. This is followed by incentives for investment tax allowance can help to improve the implementation of construction robotics technologies where the allowance on qualifying plant and equipment acquired by the company during the ITA period can help to the company [26] The implementations of technologies were unattractive because it requires higher capital cost, and lack of support especially from clients towards the adoption of the technologies [27].…”

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confidence: 99%

The Challenges of the Implementation of Construction Robotics Technologies in the Construction

et al. 2019

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Robotics is one of the advanced technologies that is used in various aspects of the construction industry to improve the efficiency and the performance of construction projects. The adoption of construction robotics technologies is significant strategies to maintain and improve productivity in the construction industry. Even though the implementation of construction robotics technologies can improve productivity, many Malaysian contractors do not embrace the existence of robotic technology and still practicing the traditional method due to many challenges. Therefore, the objectives of the study were to investigate the challenges of the implementation of construction robotics technologies in the Malaysian construction industry and the improvement method. The data of the research were achieved through a quantitative method, which questionnaires were distributed to 180 G7 contractors in Kuala Lumpur. Subsequently, 50 valid responses were retrieved and the collected data were analysed using Statistical Package for Social Science (SPSS). The findings revealed that the two (2) main challenges of the implementation of construction robotics in Malaysia were the high cost to maintain and update process the technologies. The finding also showed that strategic partnership with a high technology company was the best method to improve robotics implementation. In conclusion, this study is believed to be useful information in improving the implementation of robotics technologies in construction projects particularly around Klang Valley.

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confidence: 99%

The Challenges of the Implementation of Construction Robotics Technologies in the Construction

et al. 2019

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“…The proportion of labor cost accounted for 9-32% of the PFC production cost in our study, though previous studies revealed that labor requirement be reduced compared with in traditional on-site construction [9,19]. The results were due to lack of technical personnel and lower productivity of continuous production in prefabrication, which brought with the high labor cost.…”

Section: Effect Of Productivity Index (Pi) On Capital Costmentioning

confidence: 64%

“…Similar terms of prefabrication can be found in research: such as industrialized building (Malaysia), prefabricated building, preassembly, modularization and off-site fabrication (USA), mass production, modern method of construction and off-site construction (UK, Japan and Singapore) [5,9,28,38]. Similar to traditional on-site construction, prefabrication can be used to form a variety of architectures and functions, including residential, commercial buildings and infrastructure [11].…”

Section: Methodsmentioning

confidence: 84%

Capital Cost Optimization for Prefabrication: A Factor Analysis Evaluation Model

Xue

Zhang

et al. 2018

Sustainability

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Abstract:High capital cost is a significant hindrance to the promotion of prefabrication. In order to optimize cost management and reduce capital cost, this study aims to explore the latent factors and factor analysis evaluation model. Semi-structured interviews were conducted to explore potential variables and then questionnaire survey was employed to collect professionals' views on their effects. After data collection, exploratory factor analysis was adopted to explore the latent factors. Seven latent factors were identified, including "Management Index", "Construction Dissipation Index", "Productivity Index", "Design Efficiency Index", "Transport Dissipation Index", "Material increment Index" and "Depreciation amortization Index". With these latent factors, a factor analysis evaluation model (FAEM), divided into factor analysis model (FAM) and comprehensive evaluation model (CEM), was established. The FAM was used to explore the effect of observed variables on the high capital cost of prefabrication, while the CEM was used to evaluate comprehensive cost management level on prefabrication projects. Case studies were conducted to verify the models. The results revealed that collaborative management had a positive effect on capital cost of prefabrication. Material increment costs and labor costs had significant impacts on production cost. This study demonstrated the potential of on-site management and standardization design to reduce capital cost. Hence, collaborative management is necessary for cost management of prefabrication. Innovation and detailed design were needed to improve cost performance. The new form of precast component factories can be explored to reduce transportation cost. Meanwhile, targeted strategies can be adopted for different prefabrication projects. The findings optimized the capital cost and improved the cost performance through providing an evaluation and optimization model, which helps managers to evaluate cost management level of prefabrication and explore key inducers for high capital cost.

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“…Whilst critiques highlight recurrent challenges viz 'mirroring' fragmented practices (cf. coordination and process integration); proponents (on balance), proffer a myriad of solutions for mitigating these negative issues see - Arashpour et al (2018); Khalfan and Maqsood (2014); Pan and Goodier (2012); Pan et al 2007. The management of construction projects typically follows professional frameworks and industry best practices embodied in official guidelines such as the Project Management Body of Knowledge also known as PMBOK (PMI 2015) or the Projects in Controlled Environment also known as PRINCE2 (TSO 2009). As advocated by both frameworks, one of the most fundamental tools used in these frameworks and guidance is the work breakdown structure (WBS).…”

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confidence: 99%

Developing work breakdown structure matrix for managing offsite construction projects

Sutrisna

Ramanayaka

Goulding

2018

Architectural Engineering and Design Management

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Offsite construction techniques continue to receive considerable attention in academic/research discourse. Currently, offsite techniques still require a certain portion of construction works to be conducted onsite; albeit with a significant proportion delivered in a controlled offsite environment-typically in manufacturing facilities. Whilst discourse in seminal literature critique the positive and negative aspects of offsite; on balance, the benefits outweigh the barriers, especially when fully integrated and managed. From a management perspective, the project management techniques typically applied to offsite construction projects typically commence in determining the work breakdown structure (WBS) of these projects. Whilst the WBS approach originated from the manufacturing and engineering domain, this approach is equally applicable to offsite deliverables, reflecting site-based construction activities and concomitant dependencies with the manufacturing processes. However, there are slight discrepancies in processes, and equally, some areas of repetition and duplication. This mismatch has a fundamental impact on integration, creating pockets of confusion, where less seamless (sub-optimal) synergy between offsite and onsite works is lost. This is an acknowledged challenge. Even in cases where the WBS of the manufacturing side was converted into activities to facilitate synchronisation, precise information of the 'product' is still needed. There is therefore a real need to retain the product breakdown structure, particularly the manufactured portion of the works; but, at the same time, ensuring a seamless interface with the onsite works is maintained. This is a challenge. Whilst the WBS-matrix has been implemented in the project management domain to bridge the 'products' and 'activities', this arrangement has not yet been developed for offsite building construction projects. This paper reports an ongoing research project set up to implement WBS-matrix for offsite construction projects. Two cases of recently completed offsite construction building projects were used in a case study setting to analyse current practices-to inform the way forward to further develop the WBS-matrix. Findings from this research provide clear guidance for practitioners involved in offsite construction projects; particularly on the development of the WBS-matrix for manufacturing deliverables/activities in order to more effectively manage offsite construction projects.

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Current State of Off-Site Manufacturing in Australian and Chinese Residential Construction

Cited by 41 publications

References 15 publications

The Challenges of the Implementation of Construction Robotics Technologies in the Construction

The Challenges of the Implementation of Construction Robotics Technologies in the Construction

Capital Cost Optimization for Prefabrication: A Factor Analysis Evaluation Model

Developing work breakdown structure matrix for managing offsite construction projects

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