A new approach for modelling variability in residential construction projects

Mehrdad Arashpour
Ron Wakefield
Nick Blismas
EWM lee


The construction industry is plagued by long cycle times caused by variability in the supply chain. Variations or undesirable situations are the result of factors such as non-standard practices, work site accidents, inclement weather conditions and faults in design. This paper uses a new approach for modelling variability in construction by linking relative variability indicators to processes. Mass homebuilding sector was chosen as the scope of the analysis because data is readily available. Numerous simulation experiments were designed by varying size of capacity buffers in front of trade contractors, availability of trade contractors, and level of variability in homebuilding processes. The measurements were shown to lead to an accurate determination of relationships between these factors and production parameters. The variability indicator was found to dramatically affect the tangible performance measures such as home completion rates. This study provides for future analysis of the production homebuilding sector, which may lead to improvements in performance and a faster product delivery to homebuyers.


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Arashpour, M. and M. Arashpour, (2010) 'Gaining the best value from hr in construction companies', Proceedings of the 6th European Conference on Management Leadership and Governance, 23-33

Arashpour, M. and M. Arashpour (2012) 'A collaborative perspective in green construction risk management', 37th Annual Conference of the Australasian Universities Building Educators Association (AUBEA), University of New South Wales

Arashpour, M. and P. Farzanehfar (2011) Project Management and Control, vol. 1, Arkan

Arashpour, M., M. Shabanikia and M. Arashpour (2012) 'Valuing the contribution of knowledge-oriented workers to projects: a merit based approach in the construction industry', Australasian Journal of Construction Economics and Building, 12 (4), 1- 12

Arashpour, M., R. Wakefield and N. Blismas (2013) 'Improving construction productivity: implications of even flow production principles', CIB World Building Congress 2013: Construction and Society, Queensland University of Technology

Arashpour, M., R. Wakefield and N. Blismas (2013) Role of simulation in construction processes-harmony in capturing resources, Research, Development and Practice in Structural Engineering and Construction (ASEA-SEC), Research Publishing Services (RPS)

Bashford, H. H., A. Sawhney, K. D. Walsh and K. Kot (2003) 'Implications of even flow production methodology for U.S. housing industry', Journal of Construction Engineering and Management, 129 (3), 330-337, http://dx.doi.org/10.1061/(ASCE)0733-9364(2003)129:3(330)

Bashford, H. H., K. D. Walsh and A. Sawhney (2005) 'Production system loading-cycle time relationship in residential construction', Journal of Construction Engineering and Management, 131 (1), 15-22, http://dx.doi.org/10.1061/(ASCE)0733-9364(2005)131:1(15)

Blismas, N., R. Wakefield and B. Hauser (2010) 'Concrete prefabricated housing via advances in systems technologies - Development of a technology roadmap', Engineering, Construction and Architectural Management, 17 (1), 99-110, http://dx.doi.org/10.1108/09699981011011357

Bouchlaghem, D., H. Shang, J. Whyte and A. Ganah (2005) 'Visualisation in architecture, engineering and construction (AEC)', Automation in Construction, 14 (3), 287-295, http://dx.doi.org/10.1016/j.autcon.2004.08.012

Carlos, T. F., A. Dos Santos and A. P. James (2002) 'An exploratory study on the applicability of process transparency in construction sites', Journal of Construction Research, 3 (01), 35-54, http://dx.doi.org/10.1142/S1609945102000102

Chia, F. C., M. Skitmore, G. Runeson and A. Bridge (2012) 'An analysis of construction productivity in Malaysia', Construction Management and Economics, 30 (12), 1055-1069

Dalton, T., R. Wakefield and R. Horne (2011) 'Australian suburban house building: industry organisation, practices and constraints', Australian Housing and Urban Research Institute Positioning Paper Series, 1-56

Fellows, R. F. and A. M. M. Liu (2008) Research Methods for Construction, Wiley-Blackwell

Friedman, M. (1953) The Methodology of Positive Economics

Ghoddousi, P., E. Eshtehardian, S. Jooybanpour and A. Javanmardi (2013) 'Multi-mode resource-constrained discrete time-cost-resource optimization in project scheduling using non-dominated sorting genetic algorithm', Automation in Construction, 30, 216-227, http://dx.doi.org/10.1016/j.autcon.2012.11.014

González, V., L. Alarcón, S. Maturana and J. Bustamante (2011) 'Site Management of Work-in-Process Buffers to Enhance Project Performance Using the Reliable Commitment Model: Case Study', Journal of Construction Engineering and Management, 137 (9), 707-715, http://dx.doi.org/10.1061/(ASCE)CO.1943-7862.0000346

Greenwood, D. (2001) 'Subcontract procurement: are relationships changing?', Construction Management & Economics, 19 (1), 5-7, http://dx.doi.org/10.1080/01446190010003380

Halpin, D. W. and R. W. Woodhead (1976) Design of Construction and Process Operations, John Wiley & Sons, Inc

Henry, E. (2000) 'Quality management standardization in the French construction industry: singularities and internationalization prospects', Construction Management & Economics, 18 (6), 667-677, http://dx.doi.org/10.1080/014461900414727

Höök, M. and L. Stehn (2008) 'Applicability of lean principles and practices in industrialized housing production', Construction Management and Economics, 26 (10), 1091-1100, http://dx.doi.org/10.1080/01446190802422179

Hopp, W. J., S. M. R. Iravani and Z. Liu (2011) 'Mitigating the Impact of Disruptions in Supply Chains', Supply Chain Disruptions: Theory and Practice of Managing Risk, 21

Hopp, W. J. and M. L. Spearman (2004) 'To pull or not to pull- what is the question?', Manufacturing and Service Operations Management, 6 (2), 133-148, http://dx.doi.org/10.1287/msom.1030.0028

Hopp, W. J. and M. L. Spearman (2008) Factory Physics, McGraw-Hill Irwin Irwin

Jeong, J. G., M. Hastak, M. Syal and T. Hong (2011) 'Internal relationship modeling and production planning optimization for the manufactured housing', Automation in Construction, 20 (7), 864-873, http://dx.doi.org/10.1016/j.autcon.2011.03.003

Kamat, V. R. and J. C. Martinez (2008) 'Software mechanisms for extensible and scalable 3D visualization of construction operations', Advances in Engineering Software, 39 (8), 659-675, http://dx.doi.org/10.1016/j.advengsoft.2007.07.001

Koskela, L. and G. Ballard (2012) 'Is production outside management?', Building Research & Information, 40 (6), 724-737, http://dx.doi.org/10.1080/09613218.2012.709373

Kumaraswamy, M. M. and J. D. Matthews (2000), 'Improved subcontractor selection employing partnering principles', Journal of Management in Engineering, 16 (3), 47-57, http://dx.doi.org/10.1061/(ASCE)0742-597X(2000)16:3(47)

Li, H., N. Chan, T. Huang, H. L. Guo, W. Lu and M. Skitmore (2009) 'Optimizing construction planning schedules by virtual prototyping enabled resource analysis', Automation in Construction, 18 (7) 912-918, http://dx.doi.org/10.1016/j.autcon.2009.04.002

Little, J. D. C. (2011) 'Little's Law as Viewed on Its 50th Anniversary', Operations Research, 59 (3), 536-549

Martinez, J. C. (2010) 'Methodology for Conducting Discrete-Event Simulation Studies in Construction Engineering and Management', Journal of Construction Engineering and Management-Asce, 136 (1), 3-16, http://dx.doi.org/10.1061/(ASCE)CO.1943-7862.0000087

Moyal, P. (2010) 'The queue with impatience: construction of the stationary workload under FIFO', Journal of Applied Probability, 47 (2), 498-512, http://dx.doi.org/10.1239/jap/1276784905

Pe-a-Mora, F. and G. H. Dwivedi (2002) 'Multiple device collaborative and real time analysis system for project management in civil engineering', Journal of Computing in Civil Engineering, 16 (1), 23-38, http://dx.doi.org/10.1061/(ASCE)0887-3801(2002)16:1(23)

Sawhney, A., K. D. Walsh, H. H. Bashford and S. Palaniappan (2009) 'Impact of inspected buffers on production parameters of construction processes', Journal of Construction Engineering and Management, 135 (4), 319-329, http://dx.doi.org/10.1061/(ASCE)0733-9364(2009)135:4(319)

Veryzer, R. W. (2005) 'The Roles of Marketing and Industrial Design in Discontinuous New Product Development', Journal of Product Innovation Management, 22 (1), 22-41, http://dx.doi.org/10.1111/j.0737-6782.2005.00101.x

Walker, D. H. T. and Y. J. Shen (2002) 'Project understanding, planning, flexibility of management action and construction time performance: two Australian case studies', Construction Management & Economics, 20 (1) 31-44, http://dx.doi.org/10.1080/01446190110089691

Walsh, K. D., H. H. Bashford, A. Sawhney and A. Witjakso (2004) 'Cost of risk transfer: Pricing agreements in residential supply chains', Journal of Architectural Engineering, 10 (3), 112-118, http://dx.doi.org/10.1061/(ASCE)1076-0431(2004)10:3(112)

Walsh, K. D., A. Sawhney and H. H. Bashford (2007) 'Production equations for unsteady-state construction processes', Journal of Construction Engineering and Management, 133 (3), 254-261, http://dx.doi.org/10.1061/(ASCE)0733-9364(2007)133:3(254)


DOI: https://doi.org/10.5130/AJCEB.v13i2.3120

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