Bottom-up Strategy for Lean Construction on Site Implementation

Nero Lenotti Zanotti1, Flávio Leal Maranhão2 & Vitor Levy Castex Aly3

1Civil Engineer and M.Sc. Candidate, Escola Politecnica, Universidade de São Paulo, São Paulo, Brazil,
2Professor, Escola Politécnica, Department of Construction Engineering, Universidade de São Paulo; Professor, Universidade São Judas Tadeu, São Paulo, Brazil,
3Professor, Escola Politécnica, Department of Construction Engineering, Universidade de São Paulo;, São Paulo, Brazil,


This paper shows a Lean Construction method being implemented with a bottom-up strategy, using spontaneous improvement as a tool for the implementation. To introduce the changes, all workers were trained on how to manage and identify the 8 types of waste, and presented to a simplified A3 thinking approach as a problem-solving technique. The implementation occurred on a large infrastructure project with a total extension of 83 km, using the construction of a water pipeline as an example, studying it for six months. To measure the results, the labor productivity rate and the average production-per-day rate were introduced as performance indicators, to analyse whether the implementation was successful or not. By the end of the study, it was possible to observe a correlation between the number of improvements made, the labor productivity rate, and the average production-per-day rate, which implied a successful implementation of the lean philosophy.


Lean construction, site implementation, kaizen, spontaneous improvement



Zanotti, N.L. , Maranhão, F.L. & Aly, V.L.C. 2017, 'Bottom-up Strategy for Lean Construction on Site Implementation' In:, 25th Annual Conference of the International Group for Lean Construction. Heraklion, Greece, 9-12 Jul 2017. pp 325-331

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