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All Journal RACIC : Rab Construction Research
Zetta Rasullia Kamandang
Universitas Pembangunan Nasional Veteran Jawa Timur
Civil Engineering, Building, Construction & Architecture

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ANALISIS METODE NILAI HASIL (EARNED VALUE) MENGGUNAKAN SIMULASI MONTE CARLO UNTUK MONITORING PROYEK PEMBANGUNAN JALAN Kamila Salsabila Iman; Zetta Rasullia Kamandang
Racic : Rab Construction Research Vol. 9 No. 2 (2024): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v9i2.4253

Abstract

Project performance is assessed based on schedule, cost, and quality. Time and cost measurements must be carried out regularly to identify if there is a discrepancy with the plan. In the XYZ road construction project in East Java Province, a deviation of 20.707% was found in the 19th week, so it is necessary to analyze the concept of the value of results to determine the future development of the project. To analyze the spread of project uncertainty, Monte Carlo simulation is used by modeling the system with random numbers. The random number generated is the number between the minimum and maximum RAB for each type of work in the project. After repetition according to the number of iterations obtained with a relative error value of 2%. Then the frequency graph and normal distribution are analyzed, so it can be seen that the project must provide costs of Rp 11,031,591,805.11, Rp 16,742,117,603.03, and Rp 21,981,246,725.01 for performance evaluation at 50%, 75%, and 100% performance reviews. The SPI calculation result in week 19 is 0.409, indicating that the project is behind schedule. In addition, the TE calculation shows this project can be completed in 508 days or 73 weeks.
ANALISIS PERCEPATAN DURASI PENYELESAIAN PROYEK KONTRUKSI JALAN MENGGUNAKAN METODE TIME COST TRADE OFF DENGAN PENAMBAHAN JAM KERJA DAN JUMLAH ALAT BERAT Moh Salman Al farisi; Zetta Rasullia Kamandang
Racic : Rab Construction Research Vol. 9 No. 2 (2024): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v9i2.4287

Abstract

Acceleration of the duration of project completion often occurs because it is influenced by several factors which cause the project to be completed before the specified time. The Time Cost Trade Off (TCTO) method is a time and cost comparison method used to shorten the implementation time of construction projects. The X arterial road project which is the case study in this research has completed 35.45% of the work with a percentage of delays that must be caught up at 5.3%. The acceleration analysis in this case study implements the TCTO method with alternative work hours (overtime) and heavy equipment on critical project work to obtain efficient results in terms of time and cost. As a result, it was found that normal labor costs and normal project duration for the remaining critical work were IDR. 802,650,747.00 with a remaining settlement duration of 89 days. Then after acceleration, we obtained an additional 4 hours of overtime work per day and additional heavy equipment with a labor cost of IDR. 278,314,091.00 which can shorten the duration by 56 days. So, based on the results of the analysis, the cost required to accelerate the X arterial road project is Rp. 1,080,964,838.39 with a completion time of 33 days.
Co-Authors Kamila Salsabila Iman Moh Salman Al farisi