31st Annual Conference of the International Group for Lean Construction (IGLC 31) - Lille, France - 2023

https://doi.org/10.24928/2023/0217

An Evaluation of the Lookahead Planning Function in Last Planner® System

William Power1, Derek Sinnott2, Patrick Lynch3 & Chris Solorz4

1Productivity & Performance Manager, DPS Engineering & Construction, 4 Eastgate Avenue, Eastgate Business Park, Little Island, Cork, Ireland T45 YR13 [email protected] ORCID – 0000-0001-5791- 846X
2Senior Lecturer, South East Technological University, Cork Road, Waterford. [email protected] ORCID – 0000-0003-3969-8699
3Lecturer, South East Technological University, Cork Road, Waterford. [email protected] ORCID – 0000- 0002-5406-3846
4Last Planner Facilitator, DPS Engineering & Construction, 4 Eastgate Avenue, Eastgate Business Park, Little Island, Cork, Ireland T45 YR13. [email protected] ORCID – 0000-0001-7718-2103

Abstract

Last Planner® System (LPS) has been lauded as a critical improvement methodology for project execution. Best results accrue when all functions are utilised. However, in practice, due to lack of knowledge and appreciation of the LPS cycle and complementary interactions required, teams are not achieving optimal outcomes. Effective Lookahead planning that reduces variation and ‘making-do’ are primary concepts for facilitating better construction task execution. This study goes ‘back to basics’ and explores how improved Lookahead planning can enhance project delivery. It utilised a mixed-methods approach with case study design, encompassing interviews, project documentation, and existing research data. The case project utilised Visual Management, Takt concepts, Scrum, and Flow Walks to engage site supervisors proactively and collaboratively in diligent Lookahead planning. Findings demonstrate involvement of the trades persons in task breakdown and design of the operation ensured better activity and trade flow resulting in improved task execution. Proactive and diligent constraint screening and flow walks resulted in increased constraint identification and better on-time resolution, while also developing a workable backlog. Conducting a First-Run Study resulted in immediate productivity improvement. The basics of production planning and control are an essential component of Lean Project Delivery. The research highlights the value in practitioners exploring original literature in more depth to gain better knowledge and skills of the Lookahead planning function.

Keywords

Lean construction, Last Planner® System, Lookahead, takt, visual management.

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Reference

Power, W. , Sinnott, D. , Lynch, P. & Solorz, C. 2023. An Evaluation of the Lookahead Planning Function in Last Planner® System, Proceedings of the 31st Annual Conference of the International Group for Lean Construction (IGLC31) , 1337-1349. doi.org/10.24928/2023/0217

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