https://doi.org/10.24928/2020/0060

Using BIM With the Last Planner® System to Improve Constraints Analysis

Bernardo M. Etges¹, Raquel H. Reck², Marcus T. Fireman³, Jerusa L. Rodrigues⁴ & Eduardo L. Isatto⁵

¹1 PhD Cand., Building Innov. Research Unit (NORIE), Fed. Univ. of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil, +55 51 33083518, [email protected], orcid.org/0000-0002-3037-5597
²PhD Cand., Building Innov. Research Unit (NORIE), Fed. Univ. of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil, +55 51 33083518, [email protected], orcid.org/0000-0003-1928-3461
³PhD Cand., Building Innov. Research Unit (NORIE), Fed. Univ. of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil, +55 51 33083518, [email protected], http://orcid.org/0000-0001-5843-4715
⁴Master Student, Building Innov. Research Unit (NORIE), Fed. Univ. of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil, +55 51 33083518, [email protected], orcid.org/0000-0002-0514-0753
⁵Associate Professor, School of Engineering, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, [email protected], orcid.org/0000-0002- 0851-8790

Abstract

Studies have shown that there are flaws in the implementation of the Last Planner® System, mainly concerning the use of medium-term planning in construction companies. Among the main related problems, we highlight the difficulty that the management team has in being able to identify constraints sufficiently in advance so that they can be removed. This would avoid interruption of service fronts and a jump in losses due to making-do. In this context, BIM is seen in this paper as a modeling environment of activities constraints that can help to overcome these deficiencies because, in addition to addressing the spatial issues of the undertaking, it can also hold information about the different construction elements, such as information about the unavailability of necessary prerequisites for starting or continuing the service. This article discusses the potential for inserting BIM into the medium-term and short-term planning of construction companies when such a plan is based on the Last Planner®. For this purpose, planning data of five case studies from three different companies have been analyzed in two phases: (i) explain which categories of constraints identified in medium-term planning could be modeled in BIM; (ii) examine the percentage of work packages elaborated in short-term planning meetings could be modeled in BIM. Based on this analysis, regarding the constraints modelling in medium-term planning, it is cocluded that the BIM model with Last Planner® System can support to identifiy and remove constraints in a more agile and efficient way. Great potential for modeling medium-term constraints and of short-term packages occurs mainly for those that refer to Projects, Equipment, Work Safety and Materials.

Keywords

BIM, lookahead planning, Last Planner® System (LPS)

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Reference

Etges, B. M. , Reck, R. H. , Fireman, M. T. , Rodrigues, J. L. & Isatto, E. L. 2020. Using BIM With the Last Planner® System to Improve Constraints Analysis , Proc. 28th Annual Conference of the International Group for Lean Construction (IGLC) , 493-504. doi.org/10.24928/2020/0060

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