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Arain, F M (2006) Knowledge-based decision support system (kbdss) for management of variation orders for school building projects in Singapore, Unpublished PhD Thesis, Building, National University of Singapore.

Asmone, A S (2020) Development of a bayesian based design-for-maintinability decision support framework, Unpublished PhD Thesis, Building, National University of Singapore.

Attarzadeh, M (2014) Negotiation-based risk management for PPP-BOT infrastructure projects, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Ayodeji, A A (2008) Managing building and civil engineering project claims to reduce conflict intensity and contractors' potential to dispute, Unpublished PhD Thesis, Building, National University of Singapore.

Babatunde, O K (2013) Cross cultural management of quality performance of Chinese construction firms in Nigeria, Unpublished PhD Thesis, Building, National University of Singapore.

Bajracharya, A (2009) Implementation of innovation on construction projects: A behavioral perspective, Unpublished PhD Thesis, Building, National University of Singapore.

Cao, W (2019) Data interpretation for infrastructure system diagnosis and prognosis based on model falsification, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Chadalawada, J (2017) Data driven modelling and knowledge discovery in water resources engineering, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Chen, C (2016) Crane planning optimization for construction, Unpublished PhD Thesis, , National University of Singapore (Singapore).

Chu, L (2017) Incorporation of functional considerations in highway pavement design and operations, Unpublished PhD Thesis, , National University of Singapore.

Da Silva, N A F (2015) Building certification schemes and the quality of indoor environment, Unpublished PhD Thesis, Building, National University of Singapore.

Danlei, Z (2019) The social and market outcomes of green buildings from developer and resident perspectives: The case of Singapore, Unpublished PhD Thesis, , National University of Singapore.

Dao, M A (2008) Determinants of firm compliance with environmental laws : A case study of Vietnam, Unpublished PhD Thesis, Building, National University of Singapore.

Das, S (2009) Comprehensive maintainability scoring system (COMASS) for commercial buidings in tropical climate of Singapore, Unpublished PhD Thesis, Building, National University of Singapore.

Dulung, A Z A (2007) Computer aided decision support system for the selection of subcontractors in building refurbishment works, Unpublished PhD Thesis, Building, National University of Singapore.

Ekanayake, L L (2006) Interface conflicts and regulatory decision making process on power projects in Sri Lanka, Unpublished PhD Thesis, Building, National University of Singapore.

Feng, Y (2011) Optimizing safety investments for building projects in Singapore, Unpublished PhD Thesis, Building, National University of Singapore.

Gan, C E (1998) Organizational interactions in the management of development projects, Unpublished PhD Thesis, School of Building & Real Estate, National University of Singapore.

Gao, S (2013) The toyota way model: An implementation framework for large Chinese construction firms, Unpublished PhD Thesis, Building, National University of Singapore.

Giang, D T H (2013) Developing critical capacities for the efficient use of public investments in infrastructure to support trade and economic development in Vietnam, Unpublished PhD Thesis, , National University of Singapore.

Goh, Y M (2005) A case-based reasoning approach to construction safety risk assessment, Unpublished PhD Thesis, Civil Engineering, National University of Singapore.

He, N (2016) Conceptual cost modeling of innovative industrial estates using sysml and case-based reasoning, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Hu, Z (2023) Personalized safety behavior management for construction workers considering cognitive factors, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Huang, Y (2008) Analysis of the supply chain design and planning issues: Models and algorithms, Unpublished PhD Thesis, Civil Engineering, National University of Singapore.

Jafari, D M (2012) Resolution of multiparty construction disputes under the Singapore international arbitration legal framework, Unpublished PhD Thesis, Building, National University of Singapore.

Javed, F (2010) Integrated prioritization and optimization approach for pavement management, Unpublished PhD Thesis, Civil Engineering, National University of Singapore.

Jiang, H (2006) Chinese multinational construction firms in international and domestic markets: A re-examination of the eclectic paradigm, Unpublished PhD Thesis, Building, National University of Singapore.

Kamardeen, I (2007) A fuzzy knowledge-based system for premium-rating of workers' compensation insurance for construction projects, Unpublished PhD Thesis, Building, National University of Singapore.

Khalili, A (2013) An IFC-based framework for optimizing level of prefabrication in industrialized building systems, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Khoo, C C (1991) Cost analysis of building design for energy conservation in singapore, Unpublished PhD Thesis, School of Building & Real Estate, National University of Singapore.

Kumar, V (2019) Developing COBie dataset management system (CDMS) to enhance usability of building information model-facilities management information exchange standard, Unpublished PhD Thesis, , National University of Singapore.

Lavers, A P (1986) Professional negligence in the property-related professions, Unpublished PhD Thesis, School of Building & Real Estate, National University of Singapore.

Li, S (2010) Strategies for international construction related consultancy firms to compete in China, Unpublished PhD Thesis, Building, National University of Singapore.

Liao, L (2018) Building information modeling-based process transformation to improve productivity in the Singapore construction industry, Unpublished PhD Thesis, Building, National University of Singapore.

Lim, J N (2007) Stimulating construction innovation in Singapore by developing the national system of innovation, Unpublished PhD Thesis, Building, National University of Singapore.

Lim, K H (2006) Causal model for management of subcontractors in waste minimization, Unpublished PhD Thesis, Building, National University of Singapore.

Lim, T H B (2009) Organizational flexibility management in construction, Unpublished PhD Thesis, Building, National University of Singapore.

Lin, G (2011) Decision model for determination of adaptation potential and renewal action for public housing in Singapore, Unpublished PhD Thesis, , National University of Singapore.

Lin, S (2022) Risk analysis and management for excavation engineering via multi-criteria decision making modeling, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Ling, F Y-Y (1998) Multi-attribute decision making model for evaluation and selection of consultants for design-and-build projects in Singapore, Unpublished PhD Thesis, , National University of Singapore.

Ling, Y Y (1999) Multi-attribute decision making model for evaluation and selection of consultants for design-and-build projects in singapore, Unpublished PhD Thesis, School of Building & Real Estate, National University of Singapore.

Manocha, N (2018) Infrastructure investments under deep uncertainty, Unpublished PhD Thesis, , National University of Singapore (Singapore).

Mao, Z (2003) Forecasting total factor productivity growth in the construction industry using neural network modelling, Unpublished PhD Thesis, Building, National University of Singapore.

Ning, Y (2013) Boosting public construction project outcomes through relational transactions in Singapore, Unpublished PhD Thesis, Building, National University of Singapore.

Ong, J (2019) Enabling lean through using shared mental models for precast construction in Singapore, Unpublished PhD Thesis, , National University of Singapore.

• Type: Thesis
• Keywords: measurement; inventory; lean construction; logistics; manpower; manufacturing; prefabrication; Singapore; neural network; productivity; case study; construction project; professional; interview; questionnaire survey
• ISBN/ISSN:
• URL: https://www.proquest.com/docview/2723858329
• Abstract:
  Despite efforts in recent years, construction remains the most inefficient industry in many countries. Lean principles have brought about massive productivity growth in the manufacturing industry but application to the construction industry is still relatively unknown or unexplored. From a lean point of view, poor construction productivity is due to construction wastes, that is, defects and rework, overproduction, waiting and idle time, non-utilised resources, transportation, inventory, motion and extra-processing. One of the key movements in the Singapore construction industry is the adoption of precast construction which involves transforming construction into a manufacturing process with more off-site prefabrication to improve site productivity. Yet contractors are still encountering high occurrence of construction wastes and the pool of foreign workers have not reduced significantly. This calls for more theoretical research to understand the value of enabling lean in precast construction.To eliminate or minimise construction wastes, lean construction was adopted to model the precast construction process influencing manpower requirements. This is done using the shared mental models theory to understand how the lean principles enable people to work together to complete the tasks and work together effectively as a team throughout the entire precast construction process from the design, production, logistics to installation stages. Shared mental models is essentially the convergence among team members’ mental representations regarding various aspects of their team and tasks. The greater the commonality of their mental models, the greater the likelihood of the team’s ability to perform effectively. Teams who share mental models can understand other members’ roles and knowledge and become more effective to deliver successful outcomes.Besides the theoretical concepts, this study also presents the practical aspects faced by contractors through the conduct of questionnaire surveys to understand how the implementation of lean principles and shared mental models will affect the occurrence of construction wastes and hence the changes in the total mandays used during the precast construction process. These were further anchored by in-depth interviews with industry practitioners in the Singapore construction industry to validate the survey results.Collectively, the empirical findings collated from the building professionals suggest that a lean-enabled precast construction project leads to reduction in the occurrence of construction wastes and reduction in the total man-days used, both on-site and off-site, and the extent of reduction varies according to the different extent of lean construction implementation. The added effect of developing shared mental models among the team members is shown to further reduce the occurrence of construction wastes and result in better productivity performance. Hence, this study suggests that contractors should be integrating lean construction considerations with shared mental models development into the precast construction process to influence the impact on construction productivity in terms of the total manpower required.This study also proposed a neural network model for developing leading indicators that classify precast construction projects in accordance with the manpower changes achieved with the reduction of the occurrence of construction wastes. A case study was conducted and the results validated that the model would allow contractors to predict the risk of low construction productivity at an early stage and enable them to proactively take actions to further optimise the total man-days to be utilised in the subsequent precast construction stages.This study has contributed to the extant literature, shedding light on enabling lean through using shared mental models for precast construction in Singapore. A different approach is taken by assessing how team members involved in a precast construction project work together to minimise wastage of materials, time and effort throughout the precast construction process. This is distinct from the present site productivity measurement which focuses on the workers on-site. The construction industry will also benefit with contractors giving more attention to further develop their team’s shared mental models and implementation of lean construction principles to reduce the total man-day utilisation in their projects. Overall, this study has drawn an important practical implication with true accounts and reflections of real-life practices and experiences to help contractors to identify which areas to focus on throughout the entire precast construction process from the design, production, logistics to installation stages to further improve the rate of construction productivity.

Pasinu, H R (2011) Incorporating risk considerations in airport runway pavement maintenance management, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Peh, L C (2010) Relationship between flight-time and organization design of internationalizing architectural and engineering (a&e) consultancy firms, Unpublished PhD Thesis, Building, National University of Singapore.

Qui, N T (2013) Automated schedule generation and analysis from a construction requirement perspective, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Shiromani, J P A G T (2014) Conceptual framework for environmental rating systems for infrastructure projects in sri lanka: Application to small hydropower projects, Unpublished PhD Thesis, Building, National University of Singapore.

Singh, S (1987) Cost models for approximate cost estimation of structural systems in commercial high rise buildings, Unpublished PhD Thesis, School of Building & Real Estate, National University of Singapore.

Singhaputtangkul, N (2012) Knowledge-based decision support system quality function deployment (kbdss-qfd) tool for assessment of building envelope materials and designs in the early design stage, Unpublished PhD Thesis, Building, National University of Singapore.

Song, Y (2007) Intermediate function analysis for improving constructability, Unpublished PhD Thesis, Civil Engineering, National University of Singapore.

Stein, M (2012) Decision making with implementation dependent feedback, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Supriadi, L S R (2014) Implementing business continuity management (bcm) using a knowledge based decision support system (kbdss) for indonesian contractors, Unpublished PhD Thesis, Building, National University of Singapore.

Suzuki, K (2017) The impact of national culture on communication management - japanese contractors in singapore construction industry, Unpublished PhD Thesis, Building, National University of Singapore.

Suzuki, K (2018) The impact of national culture on communication management: Japanese contractors in Singapore construction industry, Unpublished PhD Thesis, , National University of Singapore.

Tan, J Y (2005) Coordinated budget allocation in multi-district highway agencies, Unpublished PhD Thesis, Civil Engineering, National University of Singapore.

Tjandra, I K (2004) Organisational learning in construction: The case of construction firms in jakarta, Indonesia, Unpublished PhD Thesis, Building, National University of Singapore.

Toor, S-U-R (2009) Authentic leadership development and influence in the construction industry of Singapore, Unpublished PhD Thesis, Building, National University of Singapore.

Wu, M (2005) Modelling just-in-time purchasing in the ready mixed concrete industry, Unpublished PhD Thesis, Building, National University of Singapore.

Wu, P (2011) Application of the lean philosophy to reduce carbon emissions in the precast concrete industry of Singapore, Unpublished PhD Thesis, Building, National University of Singapore.

Yang, Y (2004) Modeling a decision support system for buildable designs, Unpublished PhD Thesis, Building, National University of Singapore.

Yeoh, K-W (2012) Construction requirements driven planning and scheduling, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Zeng, Z (2007) Coordinated rescheduling of precast production, Unpublished PhD Thesis, Civil Engineering, National University of Singapore.

Zhang, J (2012) Developing a construction safety management and audit system, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Zhang, M (2011) Uncertainty and imprecision in safety assessment of offshore structures., Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.

Zhao, X (2014) Enterprise risk management in Chinese construction firms operating overseas, Unpublished PhD Thesis, Building, National University of Singapore.

Zhong, Q (1998) Building process modelling using product modelling methodology and its application to scheduling, Unpublished PhD Thesis, School of Building & Real Estate, National University of Singapore.

Zhong, Y (2013) Decision support system for the selection of structural frame material to achieve sustainability and constructability, Unpublished PhD Thesis, Building, National University of Singapore.

Zhu, L (2015) Design of a bankable and resilient financial arrangement for PPP projects using game theory with multi-agent simulation, Unpublished PhD Thesis, Civil & Environmental Engineering, National University of Singapore.