ANALISIS METODE LEAN CONSTRUCTION DAN PENJADWALAN CRITICAL CHAIN PROJECT MANAGEMENT UNTUK MEMINIMALISIR NON-PHYSICAL WASTE PADA PROYEK VILLA LANGE, TUMBAK BAYUH, BADUNG, BALI

Abstract

A project will still face the problem of inefficiency in the process of implementing work. Inefficiencies in the project will result in waste. The risk of waste will affect the smooth implementation of the project. As in the example of a construction project carried out by PT Bingkai Langit Konstruksi namely the Villa Lange construction project located in Tumbak Bayuh Village, which experienced a delay in the schedule. This research aims to find out how much non-physical waste occurs in the Villa Lange project with the questionnaire distribution method and the borda method, as well as to find out the mitigation actions for the waste. Another objective is for the total duration obtained from the application of the CCPM method in the Villa Lange project. From the research that has been conducted, the highest level of non-physical waste is defect with a weight of 26.9%. Mitigation actions that can be taken are to increase supervision in every job and always do a checklist. Also, from scheduling with the CCPM method, the duration of the feeding buffer is 14 days, while the duration of the project buffer is 129 days. With a total project completion duration of 364 days if the project buffer is used thoroughly.