Cost is one of the primary determinants of project implementation, as contractors must estimate the required budget to execute a project and prepare competitive bids to increase their chances of winning the tender. In practice, contractors do not always prepare the project cost estimate based entirely on the Indonesian National Standard (SNI) cost analysis. Instead, they frequently estimate the project budget using field-based volume calculations and practical experience to predict the overall construction cost. A project cost estimate (Rencana Anggaran Biaya/RAB) is defined as the calculation of the costs required for materials, labor, equipment, and indirect expenses associated with project implementation. This study was conducted on the periodic maintenance project of the Bayu–Meuraksa Road in Syamtalira Bayu District, North Aceh Regency, with a total road length of 2,660 meters. The project was financed through the 2022 North Aceh Special Allocation Fund (DAK) with a contract value of IDR 5,172,419,000 under Contract No. 620/08/2022 dated February 18, 2022. The project was executed by CV. Jasa Kubina Cemerlang under the supervision of CV. Kreasi Pratama Consultant. This research aims to estimate the implementation cost of the road maintenance project by calculating direct costs, including material costs, labor costs, and equipment costs. The data were analyzed using the Work Unit Price Analysis (AHSP) Guidelines for Public Works issued by the Directorate General of Highways (Bina Marga) in 2018. The expected outcome of this study is to determine the difference between the Contractor's Budget Plan (RAP) and the Owner's Cost Estimate (RAB) for the road maintenance project
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