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All Journal International Journal Science and Technology (IJST) Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Yohanes Godman Ora Etlatius Woda Sidi
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering

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Analisis Mengenai Dampak Lingkungan Pada Pembangunan Jalan Lingkar Utara Lamongan Alfina Jana Vian Duri; Devalesio Kumara Wardhana; Mohamad Rahan Ardiansyah; Yohanes Godman Ora Etlatius Woda Sidi; Dika Ayu Safitri
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 2 No. 2 (2024): April : Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v2i2.274

Abstract

Every development activity carried out will definitely have an impact on the environment, both positive and negative impacts. The construction of the Lamongan northern ring road is also inseparable from the environmental impacts it causes. Therefore, it is very important to pay attention to how to carry out this development in a way that produces maximum benefits for society while causing minimal negative impacts on the environment. One way to reduce the negative impact of development on the environment is to carry out an Environmental Impact Analysis (AMDAL). AMDAL is a formal and mandatory instrument for every development activity that may have a major impact on the environment. By carrying out an AMDAL, we can analyze the potential environmental impacts that will be caused by a development project and plan ways to reduce these impacts.This research aims to find out the parts of the AMDAL study and AMDAL problems in the Lamongan North Ring Road Construction and provide solutions or ways to overcome these problems. The research results show that activities observed from the aspect of environmental suitability are referred to as environmentally sound. In this case, there is a need for a comprehensive assessment of the potential environmental impacts that may arise as a result of the construction of the Lamongan northern ring road.In carrying out AMDAL, we need to pay attention to various aspects such as the impact on flora and fauna, air and water pollution, land use, and so on. By planning appropriate and sustainable management, we can minimize negative impacts on the environment and maximize the benefits that can be obtained from this development.
Earned Value Analysis on the Tayan Bulking Station Project in East Kalimantan Yohanes Godman Ora Etlatius Woda Sidi; Triana, Masca
International Journal Science and Technology Vol. 4 No. 3 (2025): November: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v4i3.2377

Abstract

This study aims to analyze the cost and schedule performance and to estimate the final cost and completion time of the Tayan Bulking Station Project in West Kalimantan. The method used is Earned Value Analysis (EVA) by analyzing three main parameters: Budgeted Cost of Work Scheduled (BCWS), Budgeted Cost of Work Performed (BCWP), and Actual Cost of Work Performed (ACWP). Secondary data was obtained from PT. Sarana Remaja Mandiri, including the budget plan, S-curves, and weekly progress reports up to the 23rd week. The analysis continued by calculating variances (SV, CV), performance indices (SPI, CPI), and final estimates (EAC, ETC, ETS, EAS). The results indicate that the project's cost performance fluctuated. In the early project stages (weeks 1-9), there was a cost overrun (CPI < 1). However, in the subsequent period (weeks 10-23), cost performance improved significantly with cost efficiency (CPI > 1, reaching 2.35). Overall, the estimated final cost (EAC) is IDR 34.99 billion, which aligns with the initial budget (BAC). On the other hand, schedule performance tended to be delayed (SPI < 1) for most of the observation periods (weeks 1-14 & 18-23), although there was acceleration in weeks 15-17. The estimated project completion time (EAS) is 35 weeks, indicating a 1-week delay from the planned schedule of 34 weeks. The Earned Value method proved effective in identifying project performance. It is concluded that the Tayan Bulking Station Project is efficient in terms of cost but inefficient in terms of time, with a final delay of one week. This study recommends a greater focus on schedule control and improvement for this project and similar future projects.
Co-Authors Alfina Jana Vian Duri Devalesio Kumara Wardhana Dika Ayu Safitri Mohamad Rahan Ardiansyah Triana, Masca