The Application of Lean Construction Concept in Multi-Storey Building Construction Project

Every construction project cannot be separated from various obstacles or failures. For this reason, it is necessary to improve planning using the lean construction method. The problem in this research is how to apply lean construction concepts, what factors can cause waste, and whether there are significant differences between the perceptions of contractors, supervisory consultants, and owners on the factors that cause waste to occur in fire station building construction. The purpose of this study was to analyze the application of lean construction and analyze the factors that cause waste and the differences between the perceptions of contractors, supervisory consultants, and owners. This study employs both quantitative and qualitative methods. Based on the analysis of observations made, the application of lean construction that was reviewed has started to be implemented, and there are some that have not been implemented properly, such as checking for safety, increasing visualization, and first run studies, so that it can cause waste. Descriptive analysis shows that only a small part of the waste factor with data interpretation intervals is found, namely waiting time for instructions. The results of one-way ANOVA analysis showed that there is no significant difference between the perceptions of contractors, supervisory consultants, and owners of the factors that cause waste.

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