Analysis of Cost and Time Performance in Construction Implementation Between Precast and Cast In Situ Methods in the Continued Construction of the Datu Si Panaik Cemetery Road Project, Berau Regency

Abstract

Roads are vital infrastructure that serve as connectors between various regions and support human mobility as well as the distribution of goods. Infrastructure development also plays a strategic role in promoting local and regional tourism, one example being the Datu Si Panaik Cemetery in Berau Regency. Through the Continued Construction Project of the Datu Si Panaik Cemetery Road funded by the Revised Regional Budget (APBD-P) of Berau Regency, it is expected that adequate road access will make it easier for the public and tourists to reach the site, thereby stimulating economic activity through this religious tourism sector. This study aims to analyse and compare cost and time performance between two construction methods—precast and cast in situ—used in the project. A quantitative descriptive approach is employed, with data collected through field observations, interviews, and analysis of technical project documents. The study quantitatively compares the construction duration between the Precast and Cast In Situ methods to obtain objective and measurable results. Data were obtained through field observation, interviews, measurements, and project documents such as the Budget Plan (RAB) and work schedules. The duration of each project phase—from site preparation to completion—was calculated and compared between the two methods based on actual data. The analysis is presented in the form of tables and graphs to illustrate time efficiency. Additionally, the study evaluates work quality and environmental impacts such as noise and construction waste. The results indicate that the precast method for structural work incurred a cost of IDR 151,039,617.30 with a duration of 21 days. In contrast, the cast in situ method resulted in a relatively lower cost of IDR 99,775,810.49 but required 50 days. Therefore, the precast method significantly outperforms in terms of time, being 29 days shorter, although cost savings amount to only 0.07% of the total Budget Plan.