Waste Analysis to Support the Implementation of Lean Construction on Building Project

Abstract

In the implementation of a project, it cannot be separated from the name of obstacles or failures. Failure can be caused by waste, including material delays, work repetition, low labour productivity, implementation strategies and poor project planning. Lean Construction handles projects by minimizing waste and trying to produce the maximum value possible. This research aims to identify waste factors in building construction and then analyse the dominant factors of waste. The data was collected using a questionnaire from 23 respondents involved in projects execution and then analysed using the Simple Additive Weighting (SAW) method to find the dominant waste factor in building construction projects in Malang City. According to the calculation, the result shows that the most dominant factor of waste from construction projects in Malang City is waiting criteria with a value of 0,278. Furthermore, the identified results will be used to determine the appropriate strategy towards zero waste.