Impacts of the Social Subcontract and Last Planner System Interventions on the Trade-Crew Workflows of Multistory Residential Construction Projects

Priven, Vitaliy; Sacks, Rafael

doi:10.1061/(asce)co.1943-7862.0001102

Cited by 27 publications

(20 citation statements)

References 29 publications

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“…The model of Social Subcontract presented by Priven & Sacks (2016) with LPS improved the coordination of the projects compared to projects that used LPS alone. Priven & Sacks (2016) describe that the Social Subcontract aims to strengthen the collaboration between the general contractor and the subcontractors as well as to guide them towards the common goal. Social Subcontract process consists of multiple meetings with the GC and all of the subcontractors involved in the project.…”

Section: Discussion and Recommendationsmentioning

confidence: 99%

“…These meetings include a peer-evaluation between the GC and all of the subcontractors where everyone has to evaluate each other. The sanction of social shaming was seen as the matter that maintains a commitment to the agreement (Priven & Sacks 2016. ) There was also a strong positive effect on the general contractor's motivation to improve the make-ready process for the overall flow of the project when the subcontractors were better included in the production planning phase (Priven & Sacks 2016).…”

Section: Discussion and Recommendationsmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Collaboration and Trade Partner Commitment in Takt Implementation Cases

Kujansuu¹,

Lehtovaara²,

Grönvall³

et al. 2019

Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)

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This study addresses the possible ways to improve takt implementation in projects. The purpose of this study is to gain knowledge of the stakeholder commitment and collaboration in takt projects where takt production is implemented. The study aims to explore which enablers and barriers affect collaboration in takt implementation projects, and how they differ between cases in Finland and California.The study was conducted as a qualitative multiple case study. The case projects were purposefully chosen for this study. The data collection was conducted as a triangulation of interview, observation and documentation observation. The enablers and barriers from different cases were clustered into plusses, deltas, and drivers between Finnish and Californian cases as well as jointly. The results were then analysed in a workshop and recommendations for further takt implementations as well as further research were made.Recommended actions for further takt implementation cases of more complete Lean understanding, and more transparent partnership between trade partners. However, the results and recommendations are based on a single study with a limited amount of cases, and therefore further research inside the topic is needed.

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Section: Discussion and Recommendationsmentioning

confidence: 99%

Section: Discussion and Recommendationsmentioning

confidence: 99%

Comparison of Collaboration and Trade Partner Commitment in Takt Implementation Cases

Kujansuu¹,

Lehtovaara²,

Grönvall³

et al. 2019

Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)

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“…Rather than arriving to each new site and having to renegotiate their working relationships (if they exist at all) with the other subs, the workers in the Fira Palvelut model are part of a quasi-organization that has intentional longevity. As Priven and Sacks (2016) have shown, growing the social interactions between the team members has positive impacts on project outcomes. The stability that is gained in the work durations has been leveraged to compress project timelines, an effective competitive advantage in a market niche that requires residents to find alternate accommodations during the refurbishment.…”

Section: Processmentioning

confidence: 99%

A Portfolio/Process/Operations (PPO) Analysis of a Meta-Project Production System in Renovation Projects

Korb¹,

Sacks²,

Alhava³

2017

25th Annual Conference of the International Group for Lean Construction

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The Portfolio/Process/Operations (PPO) model is a novel approach to understanding the elements that impact production systems in the world of construction. Building on prior work such as the "Transformation-Flow-Value" (TFV) theory, the PPO model adds a multi-and meta-project view through its consideration of the total "Portfolio" of projects and partners in which each company in the industry is engaged.Fira Palvelut is a Finnish contractor specializing in the refurbishment of bathrooms in the aging Finnish mass housing market. This paper examines Fira's efforts to improve their operations and finds that by addressing each of the elements of the PPO model, they have managed to build a robust and successful production system that dramatically outpaces the industry standard for project lead time. In the renovation sphere, this means customers must be out of their houses for significantly less time while the work is performed.In this paper, we give a background to the PPO model and Fira Palvelut's operations, and analyze their success through the lens of each element of the model.

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“…The LPS is defined as a process that targets the maturing of tasks over time; a mechanism that enhances coordination among contractors, subcontractors and their crews; and a measure that assesses the stability of work plans (Priven and Sacks, 2016). As asserted by AlSehaimi et al (2014, p. 52) "[t]he best known lean construction technique is the Last Planner System (LPS), which has been demonstrated as a very useful tool for the management of the construction process".…”

Section: Last Planner System (Lps)mentioning

confidence: 99%

“…In essence, LPS utilisation has been an active field of research (Bertelsen, 2002;Alarcón et al, 2005;Hamzeh, 2009) with PPC measurement being the primary focus. Nevertheless, the mechanism by which these tools work and the measures taken to improve projects that use them have remained elusive in the extant literature (Priven and Sacks, 2016).…”

Section: Introductionmentioning

confidence: 99%

Implementation of the LPS using an excel spreadsheet

Zaeri

Rotimi

Hosseini

et al. 2017

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Purpose The purpose of this paper is to investigate the implementation challenges of one of lean construction’s recent tools, the last planner system (LPS), by exploring issues in the New Zealand construction sector to identify potential areas for improvement. To achieve this aim, the study formulated two objectives: to present the challenges in LPS use and to explore solutions by using an Excel spreadsheet for facilitating LPS applications. Design/methodology/approach The study drew primarily upon a case study approach. A fieldwork study and document analysis of a New Zealand construction project were conducted with an extensive literature review undertaken on the LPS concept. Findings The findings revealed that although an automated spreadsheet could be a simple and inexpensive option for using the LPS, data collection, storage and transfer into the spreadsheet could significantly influence the reliability of the LPS outcomes. Most data utilisation challenges were found to occur around the three data sets included in the weekly work plan (WWP). The study presented several automation solutions which had been applied to overcome data utilisation challenges. Originality/value Among the first of its kind in the construction industry, this study, with its first-hand account of an organisation which uses the lean paradigm, provides an in-depth insight into LPS tool implementation. The study extends the current body of knowledge by unearthing the challenges of LPS integration into construction activities and presenting efforts undertaken in a construction case project to overcome relevant issues. This adds value by enhancing the reliability of the LPS and, consequently, the effectiveness of its implementation in practical terms.

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Impacts of the Social Subcontract and Last Planner System Interventions on the Trade-Crew Workflows of Multistory Residential Construction Projects

Cited by 27 publications

References 29 publications

Comparison of Collaboration and Trade Partner Commitment in Takt Implementation Cases

Comparison of Collaboration and Trade Partner Commitment in Takt Implementation Cases

A Portfolio/Process/Operations (PPO) Analysis of a Meta-Project Production System in Renovation Projects

Implementation of the LPS using an excel spreadsheet

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