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All Journal JURNAL ILMIAH MEDIA ENGINEERING Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Composite Journal Research Review: Jurnal Ilmiah Multidisiplin Jurnal penelitian jalan dan Jembatan
Arfan Usman Sumaga
Universitas Negeri Gorontalo
Humanities Civil Engineering, Building, Construction & Architecture Education Engineering Languange, Linguistic, Communication & Media Medicine & Pharmacology Public Health Social Sciences Transportation Other

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Penerapan Metode LSM (Linier Scheduling Method) Pada Pembangunan Proyek Konstruksi (Studi Kasus: Perumahan Citra Agrindo III) Vetry M. Gobel; Moh Yusuf Tuloli; Arfan Usman Sumaga
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 1 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2025 - Juli 2025)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i1.132

Abstract

Efficient scheduling methods are crucial in housing construction projects to minimize delays and optimize time management. This study investigates the impact of scheduling methods on project duration, highlighting the inefficiencies caused by mismatches between scheduling techniques and project characteristics. The research focuses on implementing the Linear Scheduling Method (LSM) for housing project scheduling and comparing it with conventional scheduling methods. LSM is particularly effective for repetitive construction projects, as it enables continuous work progression and minimizes task interference. By systematically organizing workgroups and sequencing activities, LSM ensures smoother workflow transitions and reduces idle time. A case study on the Citra Agrindo III Housing Project reveals that using LSM significantly improves time efficiency. The completion time is reduced from 384 days to 207 days, demonstrating a remarkable 177-day reduction compared to the existing scheduling approach. The findings highlight LSM's advantages in managing project timelines more effectively by streamlining workflow, preventing overlapping activities, and optimizing resource allocation. This research underscores the importance of selecting appropriate scheduling methods based on project characteristics to achieve better efficiency. The application of LSM in housing project scheduling proves to be a more effective approach, offering substantial time savings and improved project execution. Future research can further explore LSM’s adaptability across different construction project scales and complexities to enhance its implementation in the industry.
Analisis Manajemen Risiko Keselamatan dan Kesehatan Kerja dengan Metode Hazard Analysis (Studi Kasus pada Proyek Pembangunan Rumah Susun BPK RI) Rizki Gobel; Mohammad Yusuf Tuloli; Arfan Usman Sumaga
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 1 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2025 - Juli 2025)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i1.136

Abstract

Occupational Health and Safety (OHS) is a crucial aspect of construction project management to minimize the risk of work-related accidents that may hinder project completion. This study aims to analyze, evaluate, and design a risk management model using the Hazard Analysis Method. The research was conducted through literature studies and direct observations to identify existing risk variables. Data testing employed validity and reliability tests to ensure response consistency, where an R calculated value of ≥ 0.6 indicated high reliability. Once valid and consistent data were obtained, the analysis was carried out using a risk matrix to determine the probability and impact levels of risks. The findings indicate that workplace accidents in construction projects can be classified based on resource categories with varying risk levels. The implementation of OHS policies, regular training, and scheduled supervision has proven effective in reducing the risk of work-related accidents. Therefore, proper OHS risk management can enhance workplace safety and improve the efficiency of construction projects.
Analisis Faktor Akibat Perubahan Desain Yang Mempengaruhi Biaya, Waktu Dan Mutu Pada Proyek Konstruksi (Studi Kasus: Pembangunan Gedung Laboratorium Terpadu Kemaritiman) Melisa Yunisari; Arfan Usman Sumaga; Arfan Utiarahman
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 1 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2025 - Juli 2025)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i1.149

Abstract

Design changes in construction projects often cause significant impacts on the cost, time and quality of work. This study aims to analyze the factors resulting from design changes that affect the construction project of the Maritime Integrated Laboratory Building, Gorontalo State University. This study uses a quantitative descriptive method with data collection through a questionnaire involving 13 respondents, consisting of contractors, consultants, and technical teams. Data were analyzed using the Relative Importance Index (RII) method to identify factors of design changes and their resolution actions. This study aims to analyze the factors and resolution actions of factors resulting from design changes that affect the cost, time and quality of the construction project of the Maritime Integrated Laboratory Building, Gorontalo State University. The results of the study indicate that project delays, daily target inconsistencies, and suboptimal work methods are the main factors that impact costs and quality. Proposed mitigation efforts include better risk management, improved communication between parties, and resource adjustments to minimize negative impacts. This study is expected to contribute to the management of construction projects, especially related to design change management.
Analisis Percepatan Waktu dengan Menggunakan Metode Crashing (Studi Kasus: Pekerjaan Jembatan Owata pada Proyek Paket III Bendungan Bolango Ulu) Silva Nurhikma Bonde; Mohamad Yusuf Tuloli; Arfan Usman Sumaga
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 1 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2025 - Juli 2025)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i1.151

Abstract

A project is a series of activities aimed at achieving specific objectives within limited time, resources, and constraints. In complex construction projects, such as dam and bridge construction, proper planning, execution, control, and monitoring are crucial to ensure timely completion. Delays in such projects can lead to increased costs and missed targets. This study focuses on the time acceleration of the Owata Bridge construction, which is part of the Bolango Ulu Dam Package III Project. The method used in this research is the crashing method, a project management technique used to shorten project duration at the lowest possible cost. The analysis was carried out on the foundation and abutment work components of the bridge. Based on the crashing analysis through the addition of workforce on critical path activities, the total project duration was successfully reduced by 17 days or 9.39%, from an initial duration of 181 days to 164 days. However, this acceleration led to an increase in total project cost from Rp. 4,125,666,382.00 to Rp. 4,153,661,940.15, resulting in a cost difference of Rp. 27,995,558.15, or an increase of approximately 0.7%. These findings indicate that time efficiency can be achieved with minimal cost implications using the crashing method. This research contributes to better project planning and decision-making in infrastructure development, especially in projects with tight deadlines and significant social-economic impacts.
Analisis Manajemen Risiko Pada Pekerjaan Bangunan Pelimpah (Spillway) Proyek Bendungan Bulango Ulu Mohamad Alit Deu; Mohammad Yusuf Tuloli; Arfan Usman Sumaga
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 1 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2025 - Juli 2025)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i1.156

Abstract

Many problems may arise during the execution of construction projects as a consequence of risks, and these problems may lead to substandard performance, substandard quality, and substandard work results. Knowing how risk management is applied to construction projects and what technical risk factors occur most frequently during the execution of work in the field are the main objectives of this study. The spillway construction of the Bulango Ulu dam project is the subject of this research, which aims to identify, analyze, and respond to potential risks. Consultants, supervision contractors, and construction management are the research subjects who measure risk variables and take preventive measures. Assessing risk variables through surveys and weighing the relative importance of various activities according to the Index of Relative Importance (IKR). After reviewing the data, we have identified five risk factor variables that significantly impact the Bulango Ulu dam spillway project. These factors include incorrect dimensioning (length, width, and height), incorrect time estimation, out-of-specification concrete quality, use of incorrect execution methods, and errors in reinforcement (iron dimensions, iron spacing, and iron quality).
Pengendalian Proyek Dengan Menggunakan Metode Crash Program (Studi Kasus Pembangunan Bendungan Bulango Ulu Paket 1, Item Pekejaan Maindam, Provinsi Gorontalo) Mudatsir; Arfan Usman Sumaga; Mohammad Yusuf Tuloli
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 1 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2025 - Juli 2025)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i1.158

Abstract

The implementation of infrastructure development in Indonesia has grown rapidly in recent years, particularly in the context of its status as a developing country. One major project receiving attention in Gorontalo Province is the construction of the Bulango Ulu Dam. However, this project has faced delays in completion, which necessitates an in-depth analysis to optimize both time and cost. This study aims to analyze the project’s work network to identify the critical path and evaluate time and cost efficiency through the application of a crash program using additional overtime hours. The research was conducted at several project locations: Tulova Village, Owata Village, and Mongiilo Village in Bone Bolango Regency, Gorontalo Province. The study employed the crash program method and utilized Microsoft Project and Microsoft Excel for data processing. These tools supported the identification of critical tasks and the analysis of overtime productivity, crash duration, cost slope, and post-crash program time and cost efficiency. The analysis revealed that critical tasks in the Bulango Ulu Dam construction include drilling and grouting, stockpile work, dam top miscellaneous work, cleaning, and jetty trash boom installation. Time efficiency resulting from overtime additions was found to be: 10% (1 hour), 16.90% (2 hours), 22.62% (3 hours), 26.67% (4 hours), and 30% (5 hours). Meanwhile, cost efficiency peaked at 2.58% with 4 hours of overtime. These findings suggest that the optimal scenario for time and cost efficiency in hoarding work is achieved by adding 4 hours of overtime.
Analisis Perhitungan Produktivitas Alat Berat Gali-Muat (Excavator) dan Alat Angkut (Dump Truck) pada Pekerjaan Timbunan Maindam Bendungan Bulango Ulu Mohamad Nurbachri Eraku; Arfan Usman Sumaga; Mohammad Yusuf Tuloli
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 1 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2025 - Juli 2025)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i1.159

Abstract

Heavy equipment plays a crucial role in ensuring the smooth and timely execution of construction projects. Inaccurate analysis of heavy equipment productivity and poor selection of equipment can lead to project delays and cost inefficiencies. This study aims to analyze the productivity of heavy equipment used in the main embankment work of the Bulango Ulu Dam, determine the estimated duration of work completion, and evaluate alternative efficiency strategies. A descriptive qualitative approach was employed, with a focus on excavators and dump trucks used in four categories of embankment excavation work: core, fine filter, coarse filter, and rock. The results show that the productivity of excavators in core embankment excavation reached 790.65 m³/hour, with a work duration of 69 days, while dump trucks recorded 820.50 m³/hour with 66 days of work. For fine filter embankment excavation, excavators achieved 779.24 m³/hour (32 days), and dump trucks 530.40 m³/hour (48 days). In the coarse filter embankment excavation, excavator productivity remained at 779.24 m³/hour (34 days), while dump trucks reached 511.20 m³/hour (52 days). In rock embankment excavation, excavator productivity was 898.00 m³/hour (394 days), and dump trucks 561.20 m³/hour (631 days). Based on the efficiency comparison, Alternative 2 is recommended as it provides a significant reduction in project duration with a relatively minimal cost increase compared to Alternative 1. These findings highlight the importance of accurate equipment planning to optimize project performance in terms of time and cost.
Perbandingan Hasil Analisis Metode LoB (Line of Balance dan Metode PDM (Prescedence Diagram Method) dalam Penjadwalan Pembangunan Citra Agrindo III Nadiva Eka Putri Gobel; Mohammad Yusuf Tuloli; Arfan Usman Sumaga
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 2 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Agustus 2025 - Januari 2026)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i2.178

Abstract

The rapid growth of population has significantly increased the demand for housing, leading to the acceleration of residential construction projects. In this context, the efficiency of project scheduling methods plays a critical role in ensuring timely delivery and optimal resource utilization. This study aims to compare the effectiveness of the Line of Balance (LoB) and the Precedence Diagram Method (PDM) in the construction of the Citra Agrindo III Housing project. Employing a descriptive approach and utilizing secondary data such as S-curves and project time schedules, the research provides a detailed analysis of each method’s strengths and limitations. The findings reveal that the PDM method results in a shorter project duration, completing construction in 119 days, which is 4 days faster than the LoB method, requiring 123 days. This indicates that PDM is more effective in projects where task dependencies and sequencing play a significant role, as it clearly maps the relationships between activities. On the other hand, LoB demonstrates its superiority in managing repetitive tasks, ensuring smoother resource allocation and workflow consistency across housing units. The results highlight that both methods possess distinct advantages depending on project characteristics. Thus, project managers are encouraged to select scheduling methods that align with the nature of the project to achieve greater efficiency in both time and cost management. This comparison contributes to the broader understanding of construction project management and provides practical insights for improving scheduling strategies in the residential sector.
Analisis Penerapan Rekayasa Nilai Pada Proyek Pembangunan Gedung Laboratorium Terpadu Kemaritiman Sadik Ramdan Katili; Arfan Usman Sumaga; Apriyanto Pahrun
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 1 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2025 - Juli 2025)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i1.183

Abstract

This study focuses on the analysis of the architectural section of the Maritime Integrated Laboratory Building Development Project, which constitutes a significant portion of the overall project cost. However, this section still has the potential for cost optimization through re-efficiency efforts. Therefore, the application of the Value Engineering (VE) method is necessary to identify and eliminate unnecessary costs and efforts, ultimately reducing the total value or cost of the project while maintaining its function and quality. The data required for this study include the Cost Budget Plan (Rencana Anggaran Biaya/RAB) and Unit Price Analysis (Analisa Harga Satuan Pekerjaan/AHSP). The research method consists of several stages: cost model analysis, breakdown of work items, Pareto analysis to identify high-cost contributors, creative development of design alternatives, and analytical decision-making using Life Cycle Cost (LCC) and the Analytical Hierarchy Process (AHP). Based on the VE analysis, it was found that the most significant cost-saving opportunities were in the wall and floor work components. After replacing the initial designs with the recommended alternatives, the total savings in construction costs reached Rp. 654,697,776.22 from the total architectural cost of Rp. 8,407,006,703.01, resulting in a savings percentage of 7.79%. Additionally, savings from the life cycle cost analysis amounted to Rp. 1,039,066,566.57. These results demonstrate that the Value Engineering approach is effective in achieving cost efficiency without compromising the functional integrity of the project.
Analisis Penjadwalan Ulang dengan Menggunakan Metode Line of Balance (LoB) pada Pembangunan Perumahan (Studi Kasus: Perumahan Griya Aulia Permai) Mohamad Rifaldi Mahmud; Arfan Usman Sumaga; Moh Yusuf Tuloli
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 2 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Agustus 2025 - Januari 2026)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i2.191

Abstract

This study examines the impact of scheduling methods on time efficiency in housing construction projects, focusing on the problem of delays caused by inappropriate scheduling techniques. In many projects, the lack of alignment between the chosen scheduling method and the repetitive nature of construction activities often results in overlapping work, idle time, and inefficient resource allocation. To address this issue, the study applies the Line of Balance (LoB) method to the Griya Aulia Permai Housing Project and compares its effectiveness with the conventional scheduling method currently in use. The LoB method is particularly suitable for projects involving repetitive tasks, such as housing developments, where similar units are built sequentially. By arranging work in a continuous and balanced manner, LoB minimizes disruptions and idle periods between different work groups. Each trade can proceed smoothly without waiting for others to finish, ensuring optimal workflow across project stages. Analysis of the Griya Aulia Permai project reveals a significant improvement in scheduling efficiency. Under the existing method, the project duration was planned for 480 days. However, using the LoB approach, the total construction time was reduced to only 289 days, representing a time saving of 191 days. This reduction not only improves productivity but also has positive implications for project cost control and client satisfaction. In conclusion, adopting the LoB method in housing construction scheduling offers a more efficient and systematic approach, making it highly recommended for projects with repetitive construction elements to ensure timely completion and enhanced resource utilization.
Co-Authors Abdul Gandi Ahlan Dai Aisyah Rizki Putri Apriyanto Pahrun Arfan Utiarahman Aryati Alitu Atthabarani, Muhammad Alif Beby Sintia Dewi Banteng Dion Saputra Sune Fikriyanto Ome I Kadek Widiarta Indriani Kurniati Doda Ismet Ali Jumiati Ilham Maghfirah Maulidyah Mantulangi Fira Marina Dondo Masayu Rishaputri Yusuf Maulin Wadipalapa Melina Gobel Lina Melisa Yunisari Moh Yusuf Tuloli Moh. Yusuf Tuloli Moh. Yusuf Tuloli Mohamad Alit Deu Mohamad Nurbachri Eraku Mohamad Rifaldi Mahmud Mohamad Yusuf Tuloli Mohammad Yusuf Tuloli Mudatsir Muh Yusuf Tuloli Nadiva Eka Putri Gobel Nessa Fadila Modundo Nurul Amelia Pulumoduyo Reza Oktavia L. Parentai Rifadli Bahsuan Riski S. Siko Rizki Gobel Rizky Dwi Cahyo Harun Sadik Ramdan Katili Selvira Purnama Karim Silva Nurhikma Bonde Siti Alfariza Bunga Siti Fadilah Angkaleda Vetry M. Gobel Wahyu Hidayat Winarsi Junizar Paputungan Wulan Ruftiani Yulianti Kadir