ANALISIS PENAMBAHAN TENAGA KERJA TERHADAP WAKTU DAN BIAYA PELAKSANAAN PROYEK PEMBANGUNAN GEDUNG KANTOR TOWER BERSAMA INDONESIA GRUP (TBG) SANUR, BALI

Abstract

Delays in construction projects are a common issue that result in extended project durations and increased costs. One of the main factors causing delays is a shortage of labor, both in terms of quantity, which hampers work progress on site. This was also observed in the Tower Bersama Indonesia Group (TBG) Sanur Office Building Project in Bali, where delays became evident from the 14th week according to progress reports, necessitating the implementation of acceleration strategies to minimize the risk of further delays. This study employs the crashing method by adding labor to critical path activities, analyzed using Microsoft Project. The analysis compares the normal condition with the condition after adding labor to measure changes in project duration and its impact on costs. The results show that the project duration, originally 398 calendar days, can be shortened to 380 calendar days, achieving an acceleration of 18 days. Adding labor increases direct costs, but overall, it reduces total project costs due to savings in indirect costs. Indirect costs decreased from IDR 4,954,572,579 to IDR 4,730,533,101.84, yielding a savings of IDR 224,039,477.16. With the normal total project cost at IDR 26,500,000,000.00, adding labor raised the total project cost to IDR 26,610,407,717.60. This indicates an increase in total project costs; however, the reduction in indirect costs is significant, as indirect costs represent operational expenses during project execution. Thus, adding labor through the crashing method proves effective in accelerating project completion while optimizing total costs. This study is expected to serve as a reference for project management in formulating efficient delay-handling strategies for similar construction projects in the future.