Reducing project duration of an apartment project by waskita karya using crashing method

Abstract

This study is intended to calculate the fastest completion period of an apartment project in Medan by Waskita Karya. Since, Waskita Karya is a-project-base state owned company, it is important to maintain its quality of every running projects. Apartment Project in Medan was potentially delayed and it would lead to a penalty from its project cost around Rp. 614.627.071.968. Project duration was 42 months. Several datas were gathered such as S-Curve, number of workers, and cost structures, also interviews. From Crashing Method calculation, this study shows that this project can be reduced optimally to 39 months but it would rise the total project cost to Rp. 618.665.777.827 which equal to price addition of Rp. 4.038.705.859.